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Autodesk Robot Structural Analysis
Imperial Getting Started Guid
October 2008546A1-050000-PM04A
This manual text is printed
on 40 percent postconsumer
waste recycled paper
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2010 Autodesk, Inc. All Rights Reserved. Except as otherwise permitted by Autodesk, Inc., this publication, or parts thereo, may not reproduced in any orm, by any method, or any purpose.
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TABLE OF CONTENTS
Autodesk Robot Structural Analsis - Getting Started Guide
TABLE OF CONTENTS
AUTODESK ROBOT STRUCTURAL ANALYSIS
FAST OVERVIEW ............................................................. 1
General description o the program ........................................................................ 3
Robot modules ........................................................................................................ 3
Robot screen layout..................................................................................................5
Basic confguration o the program .......................................................................... 6
Preerences ............................................................................................................. 6
Job Preerences ....................................................................................................... 7
Navigation techniques ..............................................................................................8Methods o working with Robot interace .............................................................. 10
Sstem menu ......................................................................................................... 10
File menu ....................................................................................................... 11
Edit menu ...................................................................................................... 11
View menu ..................................................................................................... 12
Geometr menu ............................................................................................. 12
Loads menu ................................................................................................... 12
Analsis menu ............................................................................................... 13
Results menu ................................................................................................ 13Tools menu .................................................................................................... 14
Window menu ................................................................................................ 14
Help menu ..................................................................................................... 14
Laout Sstem ....................................................................................................... 15
Entering the structural analysis data .................................................................... 18
Analyzing the structure .......................................................................................... 22
Results preview ...................................................................................................... 24
Graphical results or beams .................................................................................. 24
Graphical results or suraces ............................................................................... 26Tabular results....................................................................................................... 28
Design o elements o a structure .......................................................................... 29
Steel and Timber Design ....................................................................................... 29
Steel Connections Design ..................................................................................... 32
RC Design .............................................................................................................. 34
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TABLE OF CONTENTS
Autodesk Robot Structural Analsis - Getting Started Guide
Calculation o the Required (Theoretical) Reinorcement Area ................... 34
Calculation o the Provided Reinorcement Area ......................................... 35
Reports and printout composition ......................................................................... 37
List o shortcuts ..................................................................................................... 39
3D FRAME STRUCTURE ................................................. 41
Confguration o the program ................................................................................. 43
Model Defnition ..................................................................................................... 44
Bars denition (rame 2D) ............................................................................. 44
Supports denition ........................................................................................ 45
2-ba rame denition ................................................................................... 46
Load case denition ...................................................................................... 47
Loads denition or particular load cases .................................................... 48Coping existing rame .................................................................................. 52
Denition o lateral beam ............................................................................. 53
Denition o cross bracings .......................................................................... 54
Coping dened bars (lateral beam and bracings) ....................................... 56
Structure Analysis .................................................................................................. 57
Results Preview...................................................................................................... 58
Displaing beam results graphicall ............................................................ 58
Displaing results on bars in tabular orm ................................................... 60
Stress analsis .............................................................................................. 61Preparation o printouts ......................................................................................... 64
Capturing views and data or the calculation note ....................................64
Preparing printout composition .................................................................... 65
Printing and exporting the calculation report .............................................. 67
RC AND STEEL MIXED STRUCTURE ................................ 71
Confguration o the program ................................................................................. 73
Model defnition ...................................................................................................... 74
Denition o structural axes ......................................................................... 74
Section denition ........................................................................................... 77
Bars denition ............................................................................................... 80
Supports denition ........................................................................................ 86
Load cases denition .................................................................................... 87
Denition o loads or predened load cases ............................................... 89
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TABLE OF CONTENTS
Autodesk Robot Structural Analsis - Getting Started Guide
Changing the structure tpe ......................................................................... 99
Denition o additional structural axis ......................................................... 99
Coping existing rame ................................................................................ 100
Denition o lateral beams ......................................................................... 103
Denition o slab
......................................................................................... 106Oset denition ........................................................................................... 109
Denition o a wall ....................................................................................... 114
Denition o wall support ............................................................................ 119
Meshing parameters denition ................................................................... 120
Denition o slab loads ................................................................................ 124
Structure Analysis ................................................................................................ 125
Results Preview.................................................................................................... 128
Panels results in map orm ........................................................................ 128
Deormation o the structure ...................................................................... 131Results on panels in tabular orm .............................................................. 133
Integration o Autodesk Robot Structural Analysis wit
Revit Structure ......................................................... 139
Export Revit model to Robot................................................................................. 141
Opening project in Revit Structure ............................................................ 141
Sending data to Robot ................................................................................. 142Structure Analysis in Robot .................................................................................. 149
Displaing items on the screen ................................................................... 149
Presentation o load cases transerred rom Revit Structure ................. 150
Meshing parameters denition ................................................................... 153
Calculations ................................................................................................. 156
Results preview - displaing panel results in map orm ............................ 157
Results preview - displaing results on bars in diagram orm .................. 160
Modifcation o the Structure in Robot ................................................................. 163
Replacing sections ...................................................................................... 163Deleting bars ............................................................................................... 166
Adding new elements .................................................................................. 167
Update Revit Model rom Robot ........................................................................... 172
Updating Revit Structure project .............................................................. 172
Model changes presentation ....................................................................... 177
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AUTODESK ROBOT
STRUCTURAL ANALYSIS
FAST OVERVIEW
Synopsis:
Te purpose o this Manual is introduce the novice user to the Autodesk Robot
Structural Analysis system and to provide some guidance into the program congura-
tion, menu system and navigation techniques. It will also show the many and variedmethods o input o data and extraction o results.
It is assumed that Autodesk Robot Structural Analysis 2011 is installed on the PC.
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GENERAL DESCRIPTION OF THE PROGRAM
Autodesk Robot Structural Analsis - Getting Started Guide
GENERAL DESCRIpTION OF ThE pROGRAM
What is Autodesk Robot Structural Analysis?
Autodesk Robot Structural Analysis (Robot) is a single integrated program used
or modeling, analyzing and designing various types o structures. Te program allows
users to create structures, to carry out structural analysis, to veriy obtained results, to
perorm code check calculations o structural members and to prepare documentation
or a calculated and designed structure.
Robot key eatures o the Commercial version are shown below:
Linear, nonlinear and dynamic (modal, spectral, seismic, time history, push over,
P-Delta, buckling deormation, plasticity) structure analysis
working in a multilingual environment (15 languages independently set to userinterace, designing and calculation notes)
working in a multinational environment - designing according to over 50 de-
sign codes
rames, plates and shells, plus a powerul GUI modeler and mesher allows the
user to dene virtually any shape or conguration o structure you analyze the
true structure geometry
quality bi-directional integration with Revit Structure, plus integration through
IFC, CIS2 etc.
an open API to allow the user to interace their own applications or pre and/or
post processing
ROBOT MODULES
Robot is a single product with many unctions and a common user enviroment.
At launch, Robot presents a window o options to either open an existing structure or to
enter one o the design modules. Tere appears the dialog, where:
1. the existing structure project can be selected (Projects option):- one o recently edited projects can be indicated
- a project saved on disc can be selected (Open project option)
2. work on a new project can be commenced (New Project option)
- one o deault structure types can be indicated (building, plate, shell or
rame 3D) o recently edited projects can be indicated
- a new project type can be selected (More option).
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4 ROBOT MODULES
Autodesk Robot Structural Analsis - Getting Started Guide
Te window presented below is opened aer selecting the New project option.
Tis window is used to select the type o structure that will be analyzed or to load an
existing structure.
Figure 2.1 - Robot modules window
When the cursor is positioned on an icon, a short description o its unction is displaed.
NOTE:
Te most commonly used icons are described below:
Bulding Design
Frame 3D Design
Shell Design used to modelsuraces o an shape in 3Dstructures
Truss 3D Design
Plate Design
Frame 2D Design
Grillage Design Truss 2D Design
Table 2.1 - Robot basic modules
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ROBOT SCREEN LAYOUT
Autodesk Robot Structural Analsis - Getting Started Guide
ROBOT SCREEN LAYOUT
GRAPHIC VIEWER / EDITOR
edit, view, tools, preerences
STANDARD TOOLBAR these options are mainl associated with non structuralitems, such as print, save, undo etc.
LAyOUT SySTEM
designed totake the new userthrough a modelrom start to nish,while opening pre-dened windowsor selected tasks
STRUCTURE MODEL TOOLBAR sections, nodes, members, supports,loads etc.
OBJECTINSPECTOR managemento structural
objectsVIEW MANAGER selection o a work plane; switching between 2D and 3D view
Figure 3.1 - Robot typical screen layout
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6 BASIC CONFIGURATION OF THE PROGRAM | Preerences
Autodesk Robot Structural Analsis - Getting Started Guide
BASIC CONFIGURATION OF ThE pROGRAM
Te two options, Preerences and Job Preerences, allowing the user to set pro-
gram parameters in the Robot system, are available rom the menu by opening toolbarools and pressing the appropriate icon:
Tools icon
Job Preerences iconPreerences icon
Figure 4.1 - Tools toolbar
preerences
Te Preerences dialog presented below is used to dene basic parameters in the
program:
REGIONALSETTINGSadjust thedatabases(proles,materials),units and
codes to thestandards oa countr
Robot is a multilingual program the user can independentl set dierentlanguages or input and printout, i desired
Figure 4.2 - Preerences menu
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BASIC CONFIGURATION OF THE PROGRAM | Job Preerences
Autodesk Robot Structural Analsis - Getting Started Guide
Te most regularly used options are:
languages - selection o regional settings (denition o the country whose codes
materials and regulations - e.g. code combination regulations - will be used dur-ing the design process, calculations and structure design) and working and print-
out language
general parameters (saving parameters, number o recently used structures,
sound on/o etc.)
display parameters (colors and onts or screen components)
toolbar and menu (menu type and the type o toolbars)
printout parameters (colors and onts or printouts, scale and symbols,
line thickness)
protection parameters (protection, authorization) - or changingthe system protection
COM interace - presentation o the registered additional programs/modules
Job preerences
Te Job Preerences dialog, presented below, allows you to dene general program
parameters to be used in a given project:
Figure 4.3 - Job Preerences menu
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8 NAVIGATION TECHNIQUES
Autodesk Robot Structural Analsis - Getting Started Guide
Te most important unctions are:
number units and ormats (dimensions, orces, possibility o unit edition)
materials (selection o material set, according to the country and the possibility
o creating user-dened material)
section database (selection o the appropriate database with member sections)
structure analysis parameters (selection o the static analysis method and deni-
tion o basic parameters or dynamic and non-linear analysis; selection o analy-
sis types, possibility o saving results or seismic analysis combination o seis-
mic cases)
parameters or generation o surace nite element meshes or plates and shells
NAVIGATION TEChNIqUES
In the Robot soware, various mechanisms have been introduced to make struc-
ture denition simple and more ecient. According to the type o operation perormed,
the mouse cursor changes its shape to:
hand a selection mode or highlighting entities
cross pointer - during node and bar denition, to dene precise points e.g. start
and end points o membersshape o the appropriate eature e.g. when adding sections the cursor is in shape
o an I section, when adding supports a support icon appears etc.
Te cursor operation in a viewer by means o the third mouse button (or wheel) is
identical to that in the AutoCAD program. Te ollowing cursor support modes
are available:
wheel rotation zoom in / out
wheel rotation + Ctrl key horizontal pan
wheel rotation + Shi key vertical pan
pressing the third button - pan
double-click with the third button initial view
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NAVIGATION TECHNIQUES
Autodesk Robot Structural Analsis - Getting Started Guide
Te user should take note o the work capabilities in 3D views when the menu option
Dynamic View(View Dynamic View Dynamic View) is switched on. 3D viewing
enables work in one o ve modes:
our simple modes: 3D rotation, 2D rotation, zoom and pan
one multi-unction mode
Te user may switch rom one work mode to another by selecting an appropriate option
in the View / Dynamic View menu, on the View toolbar and in the context menu. Aer
choosing a work mode, the mouse cursor movement (with mouse le button pressed)
brings about the relevant change in the 3D view:
3D Rotation rotates a structure in all planes2D Rotation - rotates a structure in the plane parallel to the screen plane
Zoom movement down the view zooming in / zooming out a structure to /
rom the screen plane
Pan movement in the view plane (structure shi with respect to the
screen center)
Te multi-unction mode (Rotation / Zoom / Pan) enables work using all the modes
at the same time. Te viewer o 3D view is divided into quarters and each o them is
ascribed one o the modes:
top let: 3D rotation top right: pan
bottom let: zoom bottom right: 2D rotation
Table 5.1 - Cursor modes
Once the cursor is positioned in the relevant quarter o the screen, the cursor shape
changes (see the icons above).
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10 METHODS OF WORKING WITH ROBOT INTERFACE | System menu
Autodesk Robot Structural Analsis - Getting Started Guide
Navigation tool (ViewCube) is also available in the program. ViewCube is a 3D
interactive tool that lets you reorient a view and set the current orientation o a struc-
ture model. Clicking a predened ace, edge or corner on the ViewCube, you can re-
orient the view o a model. Moreover, clicking and dragging the ViewCube lets you
reorient the model to dierent directions. Access the ViewCube option by selectingthe View > ViewCube - Properties.
Figure 5.1 - ViewCube
Te ViewCube also uses the compass to indicate a direction rom which you view a
model. o change the viewpoint o a model, click a selected direction on the compass
(N, S, E, W). You can show or hide the compass rom the ViewCube context menu aer
you right-click on the ViewCube and select the Show compass option.
METhODS OF WORKING WITh
ROBOT INTERFACETere are two methods to work with Robot - by using System Menu to entering
data, or special Layout System.
System menu
Te system menu consists o two parts: a text menu and toolbars with appropriate
icons. Tey can be used interchangeably, according to the users needs and preerences.Both are displayed in the same way - as a horizontal bar at the top o the screen (ad-
ditionally, or some layouts in the Robot system, another toolbar with most requently
used icons is displayed on the right side o the screen).
Basic options available within the modules are accessible both rom the text menu and
the toolbar. Tough contents o the text menu and toolbars or successive modules vary,
the main options are always available regardless o which module is active.
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1METHODS OF WORKING WITH ROBOT INTERFACE | System menu
Autodesk Robot Structural Analsis - Getting Started Guide
Te gure below illustrates both types o menus (the main menu that appears once the
Start layout is selected is shown as an example):
STRUCTUREMODEL bar
- additionalside toolbarwith mostrequentlused icons
SySTEM MENU text menu& standard toolbar
Figure 6.1 - System menu
Options available in the text menu are grouped as ollows:
File menu
FILE MENU contains options or:File management (New, Open, Save etc.)Calculation notes and drawing printouts(Screen Capture..., Printout Composi-tion... etc.), a list o inormation aboutproject and a list o recentl open les
Figure 6.2 - File menu window
Edit menu
Figure 6.3 - Edit menu window
EDIT MENU contains options or:Elements edition (Undo, Redo, Cut,Cop etc.)Selection (Select...,Select All)Selection using lters (Select Special)Model modication (Edit, ComplexEdit..., Divide, Intersect etc.)
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12 METHODS OF WORKING WITH ROBOT INTERFACE | System menu
Autodesk Robot Structural Analsis - Getting Started Guide
View menu
VIEW MENU contains options or:2D/3D view management o a structures
model (Dnamic View, Zoom, Pan etc, Workin 3D)Structure attributes to be presented on thescreen (Displa); denition o grid parame-ters (Grid)Selection o tables with data or results (Ta-bles) and saving dened views o a struc-ture (Histor)
Figure 6.4 - View menu window
Geometry menu
GEOMETRy MENU - contains options to:Select or modi a tpe o a structureDene a model construction axis (Axis Denition)Dene structural data - nodes, bars, panels andauxiliar objectsDene materialsDene bar proles and their orientation anddirection o local coordinate sstem
Dene supports and man other structural items
Figure 6.5 - Geometry menu window
Loads menu
LOADS MENU contains options to dene loadcases and combinations
Figure 6.6 - Loadcs menu window
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1METHODS OF WORKING WITH ROBOT INTERFACE | System menu
Autodesk Robot Structural Analsis - Getting Started Guide
Analysis menu
ANALySIS MENU contains options to:Start the calculation process
Change rom linear to non linear, P-Delta
or bucklingSet up dnamic analses
Figure 6.7 - Analysis menu window
Results menu
RESULTS MENU contains options to:Displa beam results graphicallDispla detailed results or beams graphi-callDispla results or suracesDispla tables that easil be edited, sorted,ltered, exported to MS Excel etc.
Figure 6.8 - Results menu window
Design menu
Figure 6.9 - Design menu window
DESIGN MENU contains options to:Design steel and timber membersDesign steel connectionsCalulate required and providedreinorcement o RC elements.
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14 METHODS OF WORKING WITH ROBOT INTERFACE | System menu
Autodesk Robot Structural Analsis - Getting Started Guide
Tools menu
TOOLS MENU contains dier-ent tpes o conguration options(Preerences, Job Preerences)and possibilit to dene users in-terace, menu, shortcuts and ormo calculation notes
Figure 6.10 - Tools menu window
Window menu
WINDOW MENU oers options to ma-nage and arrange the graphic windowsand an option to activate/deactivate theObject Inspector
Figure 6.11 - Window menu
hel menu
HELP MENU contains helpoptions and various product
inormation items
Figure 6.12 - Help menu window
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1METHODS OF WORKING WITH ROBOT INTERFACE | Layout System
Autodesk Robot Structural Analsis - Getting Started Guide
Layout System
Te second method o work with Robot is by using the special layout system.
Robot has been equipped with a layout mechanism that simplies the design process.
Te layouts in Robot are specially designed systems o dialog boxes, viewers and tables
that are used to perorm specic dened operations.
Layouts available in Robot were created to make consecutive operations leading to den-
ing, calculating, and designing the structure easier the layouts guide the user through
the process rom model generation to results.
In order to make the system as easy to use as possible, each layout has its own predenedset o windows which are automatically opened on entering the layout and closed
on exit.
Layouts are available rom the selection list ound in the right, upper corner o the
screen:
SySTEM LAyOUT SELECTION WINDOWA list o standard laouts available in Robot.This example shows the laouts or a rame 3D structureand the laouts is var depending on the structure tpe
Figure 6.13 - System layout selection window
Te layout order and arrangement ollows a chronological process, starting rom den-
ing nodes, beams, then supports, sections etc.
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16 METHODS OF WORKING WITH ROBOT INTERFACE | Layout System
Autodesk Robot Structural Analsis - Getting Started Guide
RESULTSContains laouts showing beam results, maps on suraces,stress analsis etc.
DEFINITION OF STRUCTURE MODELContains laouts relating to the geometr and basic deni-tion o a structural model, such as supports, sections etc.
DESIGNContains laouts relating to steel, timber and concretedesign etc.
TOOLSContains laouts showing naldrawings and section denition etc.
Figure 6.14 - System layout selection window - chronological layout order
A typical layout or nodes is shown note that each window cannot be closed until a new
layout is selected.
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1METHODS OF WORKING WITH ROBOT INTERFACE | Layout System
Autodesk Robot Structural Analsis - Getting Started Guide
Dialog to show entered data. It is also pos-sible to enter data manuall in this screen orto paste rom programs such as MS Excel
STRUCTURE MODEL TOOLBAR this (as in otherlaouts) contains data relating to structural enti-ties, but limited to the tpe o data that is appropri-ate to node denition
LAyOUT SELECTION PULL DOWN MENU in this case laout Nodes is selected
GRAPHIC VIEWER / EDITOR
Figure 6.15 - Typical layout or nodes
However it is not necessary to dene the structure according to the layout order. Tis
may be done in any order chosen by the user. Te layout system was introduced in sucha way that Robot structure denition is intuitive and ecient.
All Robot operations may be perormed without using the dened layouts but by
using system menu instead or also taking advantage o both methods (simultaneously)
according to the users needs and preerences.
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18 ENTERING THE STRUCTURAL ANALYSIS DATA
Autodesk Robot Structural Analsis - Getting Started Guide
ENTERING ThE STRUCTURAL ANALYSIS DATA
Tere are 3 ways to enter data:
By entering data using the appropriate text dialog or direct in a table (or pasted rom1.
MS Excel)
By entering data in the Robot GUI using tools or graphic structure denition - i.e.2.
snap grids or structural axes.
Examples o data entering using the System Layout mechanism (or Bars and Loads
options) are presented below:
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1ENTERING THE STRUCTURAL ANALYSIS DATA
Autodesk Robot Structural Analsis - Getting Started Guide
Entering data though a table in thiscase or bars. Each item can be en-tered manuall or cut and pasted rom
another application such as MS Excel
Several tools assisting the user to enter data exist in theRobot GUI including snap grids and structural axes.The Robot GUI can be used to dene virtuall an shape and
complexit o structure
Another useul tool to enter data in the Robot GUI group o Edit options (including cop, move, rotation,mirror o elements and more) signicantl simpliesand accelerate structure denition
Figure 7.1 Examples o bars data entering with System Layout mechanism
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20 ENTERING THE STRUCTURAL ANALYSIS DATA
Autodesk Robot Structural Analsis - Getting Started Guide
GRAPHIC VIEWER/EDITOR allowsthe user to enter and view data Dialog to load cases denition
Toolbar with load tools (includingadvanced options such as soil loading,vehicle loading etc.)
Dialog to dene dierent tpes o loads(node, beam, surace, sel-weight)
Data concerning dened load cases (case,load tpe etc.) in tabular orm
Figure 7.2 - Examples o loads data entering with System Layout mechanism
The updating o data is dnamic tables refect graphics and vice versa at all times.
NOTE:
By entering data in another application and importing into Robot - several le3.ormats are supported including:
DXF, DWG, IFC, SDNF (steel detailing neutral le), CIS/2. A dynamic link to
and rom Revit Structure also provides bi-directional integration.
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2ENTERING THE STRUCTURAL ANALYSIS DATA
Autodesk Robot Structural Analsis - Getting Started Guide
As the preparation o the structural model progresses, the user can control exactly
what is seen on the screen by using the Displaysettings (it is available by pressing
icon rom context menu or direct rom the bottom, right corner on the Robotscreen):
DISPLAy allows the userto switch on and o a wideselection o items, includingnode and members numbers,section shapes, supports, FEmesh and also sets up hiddenline and render options.
A wide range o customizationoptions allows to the userto dene a view o structureas required exactl to userspreerences.
Figure 7.3 - Display window
Aer dening the model data, the user now proceeds to the analysis stage.
However, prior to this stage, the model must be discretized into nite elements.
Robot has wide ranging capabilities or automeshing the structure and meshing is gen-
erally a very ast process or even the largest o models. Some o the meshing param-
eters are shown below:
MESH REFINING OPTIONS allowthe user to easil rene the mesh inuser selected areas.
AUTOMESHING PARAMETERS can mesh all or part o thestructure and also dene mesh densit and meshing tpe
Figure 7.4 - FE Mesh Generation toolbar
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22 ANALYZING THE STRUCTURE
Autodesk Robot Structural Analsis - Getting Started Guide
Example o structure with meshed panels is shown below:
Figure 7.5 - Example o meshing
ANALYzING ThE STRUCTURE
Structural analysis can be started by selecting one o the two calculation buttons
in the horizontal toolbar.
Figure 8.1 - Calculation icons
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2ANALYZING THE STRUCTURE
Autodesk Robot Structural Analsis - Getting Started Guide
Te icon on the le side starts the calculation process. Te second icon is used to set di-
erent analysis parameters. Tis option allows the user to change specic analysis types
rom linear to non linear or to set up dynamic analysis.
Figure 8.2 - Changing analysis parameters
As a deault, all analysis is set as linear static, unless the user has included some mem-bers or parameters such as cables, tension only, hinges etc. In such a case the analysis
type is automatically changed to non linear and Robot will apply the loads incremen-
tally to ensure the true structural equilibrium and a nal exact geometry is reached.
Robot has many non linear parameters that the user can set in the case o non conver-
gence o analysis data, including the options to set ull or modied Newton-Raphson
and step halving. In addition to general non linear calculations, the user can also set
the ollowing analysis options:
P-Delta
Modal
Seismic (to codes such as IBC, UBC, EC etc.)
Spectral response
ime history
Buckling
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24 RESULTS PREVIEW | Graphical results or beams
Autodesk Robot Structural Analsis - Getting Started Guide
RESULTS pREVIEW
Te Results Layout shows a wide range o analysis results presentation.
All o results preview options are also available through the RESULTS pull-down menu.
NOTE:
User can view results o calculations b selectingthe results laout, where a set o submenus orparticular results then appears
Figure 9.1 - Results type selection rom results layout
Results can be split into various categories, each having their own characteristics.
Graical results or beams
(graphical results or individual beams, or selection o beams, or groups o beams
presentation - bending moment, shear, stress, defection animation o results in .avi
ormat etc.)
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2RESULTS PREVIEW | Graphical results or beams
Autodesk Robot Structural Analsis - Getting Started Guide
Dialog selects tpe o result to be displaedGraphical presentation o results as diagramsin graphic viewer/editor
Side toolbar shows additional results o structuralanalsis in tabular orm, graphical orm, plus links todesign modules
Tables o results can easil be con-verted to MS Excel ormat b clickingright hand mouse
Figure 9.2 - Results in the diagrams orm
Tere is also easy acces to calculation results or single bars. In context menu o the bar
(right mouse click on the element, then select Object Properties option) user can seediagrams and values or selected quantity o internal orces.
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26 RESULTS PREVIEW | Graphical results or suraces
Autodesk Robot Structural Analsis - Getting Started Guide
A right mouse click on an bardisplas its properties and results (ianalsis has been carried out)
Figure 9.3 - Calculation results or single bar
Graical results or suraces
(graphical results or suraces, contour maps or bending, defection, stress, animations;
reduced results showing global orces in surace cuts, including direct reduced results
or cores and sti diaphragms)
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2RESULTS PREVIEW | Graphical results or suraces
Autodesk Robot Structural Analsis - Getting Started Guide
Graphical presentation o result maps ingraphic viewer/editor Dialog to select tpe o map to displa
Side toolbar shows additional results o structuralanalsis in tabular orm, graphical orm, plus linksto design modules
Figure 9.4 - Results in the maps orm
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28 RESULTS PREVIEW | Tabular results
Autodesk Robot Structural Analsis - Getting Started Guide
Tabular results
Tables can easil be edited, enveloping results,setting limits, ltering data b load case etc.
Dialog used to dene contents o the table.It is available rom the menu activated bpressing the right mouse button when thecursor is located in the table, and selectingTABLE COLUMNS
Figure 9.5 - Tabular results
Robot tables can be easily transerred to MS Excel by pressing the right hand
mouse button.Inside Robot, the tables can be manipulated in many ways, in the same way as input
tables:
ltering data or specic load cases, members or groups o members
ltering data inside or outside user dened limits showing global maxima and
minima or selected members, nodes or suraces.
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2DESIGN OF ELEMENTS OF A STRUCTURE | Steel and Timber Design
Autodesk Robot Structural Analsis - Getting Started Guide
DESIGN OF ELEMENTS OF A STRUCTURE
A list o Design Laouts available in Robot whereuser can design steel, timber and concrete ele-ments o a structure.
Figure 10.1 - Design Layouts
Te ollowing modules are used to design structure elements:
Steel Design (code verication o steel structure elements)
imber Design (code verication o timber structure elements)
RC Design: required reinorcement calculation and generation o provided reinorce-
ment.
Design laouts contains own predened set o dialogs/viewers. Steel/Aluminum Design andTimber Design laout are ver similar and design process is divided into the same steps.
NOTE:
Steel and Timber Design
Perorming the code calculation or members o steel, aluminum and timber struc-
tures runs in two stages:
denition o structural elements (members) and their code parameters or member1.groups in Denitions dialog
calculation o members/member groups in2. Calculations dialog.
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30 DESIGN OF ELEMENTS OF A STRUCTURE | Steel and Timber Design
Autodesk Robot Structural Analsis - Getting Started Guide
Denitions dialog is used to dene members orgroups o members. It is composed o two tabs:Members and Groups. User can dene number,name, bar (member) list and code parameters(buckling lengths, buckling parameters, rigiditconditions), etc.
Calculations dialog allows or selection o thecalculation options or members or membergroups. User can dene tpe o calculation(member verication, code group vericationand design) choose optimization option, loadcases, limit state, etc.
Figure 10.2 - Example o steel design layout (code group design)
Aer setting parameters in the Denitions and Calculations dialogs user can start
member verication/design by pressing the Calculations button (lower part o the
Calculations dialog). Once the calculations are completed, the Results dialog will be
displayed.
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3DESIGN OF ELEMENTS OF A STRUCTURE | Steel and Timber Design
Autodesk Robot Structural Analsis - Getting Started Guide
Calculations results can be presented as:
Short results1. - dialog consists o two tabs: Results and Messages. Te Results tab dis-
plays results o structure member verication/design presented in the orm o short
result tables. Te latter tab presents comprehensive inormation regarding warnings
and errors that occurred during structure member verication/design.
Figure 10.3 - Example o short results or group design with optimization
There are some dierences concerning the result displa or various calculation options.
NOTE:
Simplied and detailed results2. - dialog with detailed results is open by clicking
on a section presented in the Short results dialog, on the Results tab. Te dialog
presents all the characteristic values adopted in course o the calculations and a set
o code conditions that determine the member resistance. Te top right part o the
dialog shows the basic inormation about a section: SECION OK.
Figure 10.4 - Example o simplifed and detailed results or group design with optimization
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32 DESIGN OF ELEMENTS OF A STRUCTURE | Steel Connections Design
Autodesk Robot Structural Analsis - Getting Started Guide
Steel Connections Design
o start the code verication o steel connections, select the Steel Design / Con-
nections layout (available in the Steel Design layout group).
Graphical viewer which consists o several tabs:- Scheme (a schematic drawing o a connection)- Connection View (the view o a dened connection in 3D)- Structure (the view o a whole structure)- Results (a calculation note with results).
Toolbar containing icons used tocreate, modi, cop and calculate o aconnection.
Steel Connection Inspector paneis used or management o denedconnections.
Toolbar with connection tpes available inRobot such as: xed column base, beam-beam, rame knee, column-beam, etc.
Figure 10.5 - Example o connection layout (results tab or fxed beam-to-column connection)
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3DESIGN OF ELEMENTS OF A STRUCTURE | Steel Connections Design
Autodesk Robot Structural Analsis - Getting Started Guide
The ollowing codes are available, allowing ou to calculate steel structure connections: Eurocode(ENV 1993-1-1:1992 and EN 1993-1-8:2005), French steel code CM66 and Polish steel code PN-90/B-03200. The national versions o the Eurocode 3 code or steel connections: French (NF-EN
1993-1-8:2007) and Polish (PN-EN 1993-1-8:2006) are available.
NOTE:
Te code calculations o steel connections run in two stages:
denition o geometry o a connection (a connection type) and its parameters.1.
It is possible to create connection within the structure (by selected bars in the struc-
ture) or connection dened manually (a stand-alone connection). o dene a new
connection user can choose one o connection types rom toolbar in the right side
(this toolbar is available when the icon is pressed). Appropriate parametersor the selected connection type can be dened in the Connection Denition dialog.
A dened connection will be added to the list o connections in the Inspector pane.
o return to the denition o connection parameters, double click this connection
in Inspector pane. I the connection is dened user can change the type o connec-
tion (this toolbar is available when the icon is pressed). Te connection can
also be copied.
calculation o the dened connection or selected parameters and load cases.2.It is possible to design connections rom a structure (to start connection calcula-
tions select the icon to open Connection Calculations dialog) or perorm
manual calculations o the connection (to start connection calculations select the
icon to open Manual Connection Verication dialog). In these dialogs user
can dene calculation parameters or the connection.
When the calculations o a connection are completed, a calculation note (available on
the Results tab) will present inormation i the selected connection ullls the code re-
quirements.
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34 DESIGN OF ELEMENTS OF A STRUCTURE | RC Design
Autodesk Robot Structural Analsis - Getting Started Guide
RC Design
Te Robot oers two possibilities or a design o RC structure members:
calculation o the required reinorcement area needed or the RC membergeneration o the provided reinorcement or the RC member.
Calculation o te Reuired (Teoretical) Reinorcement Area
Calculation o the required (theoretical) reinorcement area or RC members is possible
by selecting the RC Members - required reinorcement layout (available in the RC
Design layout group).
Calculations o the required reinorcement run in two stages:1. denition o code parameters o RC members.
Te option used or denition o the RC member type in a structure is available
rom the right toolbar, by selecting the icon (RC Member ype dialog).
Double-clicking on the icon that represents an existing RC member type calls up
a Member ype Denition dialog where the parameters assigned to the selected
member type are set. In this dialog user can dene geometrical parameters o
elements o an RC structure such as: buckling parameters, allowable values o
defection and displacements at member ends, etc.Te option used or denition o the calculation parameters is available rom
the right toolbar, by selecting the icon (Calculation Parameters dialog).
When the icon is pressed then Calculation Parameter Denition dialog is
opened. Tis dialog contains parameters, needed or the design o RC elements,
that are not connected with the their geometry such as: steel and concrete prop-
erties, types o used members, covers, etc.
2. calculation o the reinorcement area.
Calculation parameters o the required reinorcement can be dened in Calcula-
tions... dialog. Tis dialog is available in the top right side oRC Members - required
reinorcement layout. In this dialog is possible to choose calculation type, elements
taken into account in calculations, design cases, etc.
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3DESIGN OF ELEMENTS OF A STRUCTURE | RC Design
Autodesk Robot Structural Analsis - Getting Started Guide
Aer setting all necessary parameters user can start the calculations o the
required reinorcement by pressing the Calculate button (lower part o the
Calculations... dialog). Results or calculations o the required reinorcement are avail-able in the table orm. Tey can also be presented in the orm o diagrams along the
member length.
Calculation o te provided Reinorcement Area
Te module or the code design o member elements o RC structures (RC beams, RC
columns, spread ootings etc.) allows or calculation o the provided reinorcement or a
selected element o an RC structure.Tis module can be activated in two ways:
in the stand-alone mode by selecting the Provided reinorcement layout (available
in the RC Design layout group) and pressing one o the RC element icon rom right
side toolbar. Ten the module or the design o a bar structures element will oper-
ate as an independent program (stand-alone) without connection (data exchange)
to other parts o the Robot program. Aer selection o this work mode, the user
denes geometry o the RC structure element, its properties (cross-section, length,
reinorcement parameters, etc.), loads and perorms the static calculation o the
structure element.
work on RC elements within the dened structure model. Te RC element dimen-
sions, the loads and the calculation results are transerred to the designing module.
In order to activate the module in such mode, the user should select RC element
rom structure (by highlighting in the graphic editor) and next select the appro-
priate command rom Design / Provided Reinorcement o RC Elementsmenu.It will launch the relevant module o the Robot program.
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36 DESIGN OF ELEMENTS OF A STRUCTURE | RC Design
Autodesk Robot Structural Analsis - Getting Started Guide
GRAPHIC VIEWER / EDITOR
Tabs or RC modules who has its ownpredened set o viewers. These tabs macontains graphical viewers, dialogs, results,diagrams, notes, etc.
REINFORCEMENT DATA
Toolbar contains icons used to denenew RC element such as: beam, col-umn, oundation, wall, etc.
RC Component Inspector paneis used or management odened RC elements.
Toolbar with icons used to dene parametersor RC elements such as: tpical reinorce-ment, calculations options, openings, etc.
Figure 10.6 - Example o RC design layout (beam reinorcemnt tab)
When one o modules or the code design o RC element is open, calculations o the
provided reinorcement area run in two stages:denition o code parameters o RC structure element.1.
Prior to starting calculation o the provided reinorcement o an RC structure ele-
ment, the ollowing parameters should be dened or each element o the structure:
typical reinorcement, story parameters, calculation options and reinorcement pat-
tern. For some elements o RC structures it is also possible to dene other param-
eters such as: or RC beams - openings, or RC columns - buckling length, or RC
spread ootings - geotechnical options, etc.
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3REPORTS AND PRINTOUT COMPOSITION
Autodesk Robot Structural Analsis - Getting Started Guide
calculation o the provided reinorcement area.2.
Once the parameters are dened or an RC structure element, calculations o
the provided reinorcement area may start by selecting the icon. PressCalculate button in the Calculation dialog to start generation o the rein-
orcement distribution in a selected element o an RC structure.
When calculations o the provided reinorcement are complete, the calculation
results are presented in the graphical and tabular orm.
REpORTS AND pRINTOUT COMpOSITIONRobot has a built in report generator which permits the user to create a
user dened printout or a Project.
Tere are two options on the menu bar - Printout Composition and Screen
Capture which help to prepare the nal calculations notes, tables and graphic
printouts.
Tables can easil be edited, enveloping results,setting limits, ltering data b load case etc.
Dialog used to dene contents o the table - it is
available rom the menu activated b pressing theright mouse button when the cursor is located inthe table, and selecting TABLE COLUMNS
Figure 11.1 - Printout Composition and Screen Capture icons
Te Standard tab lists a set o predened options or printout, which can be mixed
with screen captures to the users requirements.
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38 REPORTS AND PRINTOUT COMPOSITION
Autodesk Robot Structural Analsis - Getting Started Guide
List o nal printout, show-ing order o data to beprinted - the dashed redline indicates a page breakbetween each item
Predened list o printout components
Various method o savingthe report in .doc, htmland sxw ormats
Figure 11.2 - Printout composition
A key eature o Robot is that all o the data in the program is saved in a common binary
le this data includes input, output, design plus also printout data. When structural
data is altered or amended the output and printout (tables and graphics) are automati-
cally updated on re-analysis to refect the new results o the analysis. Tis is particularly
useul when considering a schematic design or sensitivity study since the printout isautomatically updated at every analysis step to refect the current structural congura-
tion.
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3LIST OF SHORTCUTS
Autodesk Robot Structural Analsis - Getting Started Guide
LIST OF ShORTCUTS
i rr pr
select all cr + Acop a text or a drawing cr + c
open a new project cr + n
open an existing project cr + o
start printing cr + p
save the current project cr + s
cut a text or a drawing cr + X
repeat the last operation cr + y
paste a text or a drawing cr + V
undo the last operation cr + Zdispla the 3D view o a structure (3D XyZ) cr + A + 0
project a structure on XZ plane cr + A + 1
project a structure on Xy plane cr + A + 2
project a structure on yZ plane cr + A + 3
zoom in the structure view on screen cr + A + A
displa the initial view o the structure (dened b the initial
angles and scale)
cr + A + d
exploded view o structure elements (on/o) cr + A + e
zoom window cr + A + lturn on/o section drawing displa cr + A + p
screen capture cr + A + Q
zoom out structure view on screen cr + A + R
turn on/o section smbol displa cr + A + s
rotate continuousl around the X axis cr + A + X
rotate continuousl around the y axis cr + A + y
rotate continuousl around the Z axis cr + A + Z
delete a text or a drawing d
call Robot Help sstem or the active option in the active dialogbox
F1
call text editor F9
reduce structure attributes (supports, numbers o nodes, bars,
loads) presented on screen
pgd
enlarge structure attributes (supports, numbers o nodes, bars,
loads) presented on screen
pgu
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3D FRAME STRUCTURE
Synopsis:
Te purpose o this example is to show the ease o denition, analysis and report
generation or a simple steel 3D rame in Robot.
For this example, it is assumed that Autodesk Robot Structural Analysis 2011 is in-
stalled on the PC.
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4CONFIGURATION OF THE PROGRAM
Autodesk Robot Structural Analsis - Getting Started Guide
CONFIGURATION OF ThE pROGRAM
Following installation o Robot, the user may congure the working parametersor Preerences. o do this:
Start the Robot program (click the appropriate icon or select the command rom1.
the taskbar).
On the opening window, displayed on the screen click the icon2. (Frame
3D Design). Other options are or 2d and 3d rames, models with suraces such
as walls and foors, access to stand alone design modules etc.
Select3. ools > Preerences rom the text menu or click on the , thena
icons on the toolbars to open the Preerences dialog. Preerences allow the user
to set up working and printout languages, onts, colors etc.
Figure 1 - Regional settings in Preerences dialog.
Select the rst preerences option -4. Languages (tree on the le part o the win-
dow), then as the Regional settings choose United States.
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44 MODEL DEFINITION | Bars defnition
Autodesk Robot Structural Analsis - Getting Started Guide
Rga g set the deault databases (proles, materials), units and codes to the stan-dards o a countr. In the example above, we have chosen American section database (AISC)and imperial data units: [t],[in], [kip].
NOTE:
Click5. Accept to close the window.
you can check active units in right, bottom corner o the screen. In this example should bethe displa: [t] [kip] [Deg].
NOTE:
MODEL DEFINITION
Bars defnition (rame 2D)
In this step, you create rame members consisting o 2 columns and a beam.
Click1. icon (right side o the screen) to open the Bars dialog.
Set2. Bar type: as Column whatever is selected is not important or analysis, but
aects the design parameters or subsequent member design, such a buckling
length, position o restraint etc.
Dene3. Section: as W14x211.
I the W14x211 section is not available on the list, ou should click the () button locatedbeside the s eld and add this section rom the database. In opened nw dialog, in s eld or daaa: Aisc choose Fa: W then Section:W14x211. Click A and c the dialog.
NOTE:
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4MODEL DEFINITION | Supports defnition
Autodesk Robot Structural Analsis - Getting Started Guide
There are man extra options that ma be entered or abricated mem-bers, tapering sections and also or beams that the user wants to dene
as able to exhibit plasticit.
INFO
Enter the ollowing points in the4. Beginningand End eld:
to dene rst column o rame: (0;0;0) and (0;0;10)- Add
to dene second column: (20;0;0) and (20;0;10)- Add
Set5. Bar type: as Beam.
Dene6. Section: as W14x211.
o dene a beam in the structure, enter the ollowing points in the7. Beginning
and End eld: (0;0;10) and (20;0;10) Add.
Close8. the Section window.
Suorts defnition
In this step, you create supports or the rame structure.
Click1. icon (right side o the screen) to open the Supports dialog.
o choose structure nodes, the user can either select a support type rom the list2.
and then select a node or nodes by click or window, or the user can directly input
the node number and apply. o make a window selection, press the right hand
mouse key and then the Select menu option and window around the nodes to besupported and click inside the selection box.
From the3. Supports dialog select the Fixed support icon.
Click4. Apply.
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46
Autodesk Robot Structural Analsis - Getting Started Guide
MODEL DEFINITION | 2-bay rame defnition
2-bay rame defnition
In this step, we create a 2 bay rame by mirroring the existing rame.
Select all bars (by window or1. CRL+A) and mirror them Edit > Edit > Vertical
Mirror by vertical axis o the right column (just click on this axis).
There are man editing possibilities: cop, move, divide, intersect,rotation etc. to make modeling o structure easier and more eective.
INFO
Click2. icon (top o the screen) to show the whole structure.
o display bars and nodes numbers click3. icon (bottom le corner o the
screen) then in the Display dialog tick on Favorites > Node numbers and Favor-
ites > Bar description > Bar numbers.
Click4. Applyand OK.
Click5. , icon at the bottom o the screen to display supports symbol and
sections shape.
Te rame should appear as below:6.
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4MODEL DEFINITION | Load case defnition
Autodesk Robot Structural Analsis - Getting Started Guide
Figure 2 - Frame with supports and sections shape view.
Load case defnition
In this step, you dene load cases (their number, nature and description).
Click1. icon (right side o the screen) to open the Load ypes dialog.
Click2. Newto dene a dead load (sel-weight) with a standard name DL1.
The sel-weight load is automaticall applied in the rst row to all structure bars (in the Zdirection).
NOTE:
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48 MODEL DEFINITION | Loads defnition or particular load cases
Autodesk Robot Structural Analsis - Getting Started Guide
Choose in the3. Nature eld live, then Newto dene a live load with a standard
name LL1. We have now dened 2 load cases.
Choose in the4. Nature eld wind, then Newto dene a wind load with a stan-dard name WIND1 (in the same way dene WIND2). We have now dened
4 load cases.
Close5. the dialog.
Loads defnition or articular load cases
In this step, you dene loads or each created load case.
o dene loads or1. LL1 case select the 2nd load case in the list o dened
cases eld:
Figure 3 - Load case LL1 selection.
Click2. icon (right side o the screen) to open the Load Denition dialog.
On the3. Bar tab click icon to open the Uniorm load dialog, then type val-ue o load -2 in the pZ eld, clickAdd (Uniorm load dialog is automatically
closed).
Select beam span (no.3) indicate them or just type4. 3 in eld Apply to.
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4MODEL DEFINITION | Loads defnition or particular load cases
Autodesk Robot Structural Analsis - Getting Started Guide
Click5. Apply.
On the6. Bar tab click icon to open rapezoidal load dialog, then type valueso loads and coordinates as shown below, clickAdd and close the dialog. Tis
generates a varying load on the beam.
Figure 4 - Trapezoidal load defnition.
Select beam span (no.5) indicate the beam or just type7. 5 in eld Apply to.
Click8. Applyand close Load Denition dialog.
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50 MODEL DEFINITION | Loads defnition or particular load cases
Autodesk Robot Structural Analsis - Getting Started Guide
o dene loads or9. WIND1 case select the 3rd load case in the list o dened cases eld.
On the10. Node tab in Load Denition dialog click icon to open Nodal Forcedialog, then type value o load 2.0 in the FXeld, clickAdd and close the dialog.
Select the upper node o the le column (no.2) graphically or by cross-window11.
or just type 2 in eld Apply to.
Click12. Applyand close Load Denition dialog.
o dene loads or13. WIND2 case select the 4th load case in the list o dened cases eld.
On the14. Bar tab in Load Denition dialog click icon to open Uniorm load
dialog, then type value o load -1.5 in the pXeld (pY=0, pZ=0), clickAdd and
close the dialog.
Select the right column (no.4) indicate it or just type15. 4 in eld Apply to.
Click16. Applyand close Load Denition dialog.
Close the17. Load ypes dialog.
Click18. , icons at the bottom o the screen to turn displaying loads symbols
and loads values description on.
Te loads can also be seen in tabular orm click19. ables icon (right side
o the screen) then tick Loads on or select View > ables > Loads command
(see below).
All tables in Robot can be exported to MS Excel b simpl clicking theright hand mouse button in the table.
INFO
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5MODEL DEFINITION | Loads defnition or particular load cases
Autodesk Robot Structural Analsis - Getting Started Guide
Figure 5 - Load cases data in tabular orm.
In the list o dened load cases choose the load case or which the loads will be20.
displayed:
All dened loads cases will be displayed together (as shown below):21.
Figure 6 - All defned load cases view.
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52 MODEL DEFINITION | Copying existing rame
Autodesk Robot Structural Analsis - Getting Started Guide
Coying existing rame
In this step, we copy the 2D rame to generate 3D structure. When we copy that rame,
all attributes attached to it (loads, sections, supports etc.) are also copied:
Click1. icon (top o the screen) to open the Viewdialog, then or choose
View > Work in 3D > 3Dxyz rom the menu to select the isometric structure
view.
Click CRL+A to select all o the structure.2.
3. Edit then ranslation or select the Edit > Edit > ranslate option
rom the pull-down menu to open the ranslation dialog.
In4. ranslation vector eld type coordinates as shown below (be sure that in Edit
mode option Copyinstead oMove is checked on and Number o repetitions is 1).
Figure 7 - Copy rame parameters defnition.
Click5. Execute second rame should be display on the screen.
Close the6. ranslation dialog.
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5MODEL DEFINITION | Defnition o lateral beam
Autodesk Robot Structural Analsis - Getting Started Guide
Click7. icon to show the whole structure. Te structure should look as
shown below:
Figure 8 - 3D View o copied rame.
Defnition o lateral beam
In this step, you dene beams to join the selected rames together:
Click1. icon (right side o the screen) to open the Bars dialog.
In2. Bars dialog set Bar type: as Beam.
Dene Section: as3. W12x190.
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54 MODEL DEFINITION | Defnition o cross bracings
Autodesk Robot Structural Analsis - Getting Started Guide
I the W12x190 section is not available on the list, one should click the () button located be-side the s eld and add this section to the active section list in the nw dialog.
NOTE:
In the elds4. Beginningand End type coordinates (as shown below) or simply select
beginning eld and then graphically draw the start and end points o the member.
Figure 9 - Bars defnition.
I entered by coordinates, Click5. Add and close Bars dialog.
Defnition o cross bracings
1. Sections then New section denition or select the Geometry >Properties > Sections > New section denition option rom the menu to open
the New Section dialog:
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5MODEL DEFINITION | Defnition o cross bracings
Autodesk Robot Structural Analsis - Getting Started Guide
Figure 10 - New section defnition.
Select2. Section (L4x4x0.25) rom American section Database (AISC) as shown above.
Click3. Add - new section type will be added to the active Sections list.
Close4. New section denition and Sections dialogs.
Click5. icon (right side o the screen) to open the Bars dialog.
In6. Bars dialog set Bar type: as Simple bar.
Dene7. Section: as L4x4x0.25.
In the elds8. Beginningand End type coordinates:
(40;0;10) (40;24;0) clickAdd then (40;24;10) (40;0;0) and press Add. OR draw
in the GUI.
Close9. Bars dialog.
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56 MODEL DEFINITION | Copying defned bars
Autodesk Robot Structural Analsis - Getting Started Guide
Coying defned bars (lateral beam and bracings)
In this step, you copy the recently dened bars to nish the denition o the rame:
Select the three recently dened bars just indicate them (bars no.11,12,13) -1.
multiple selections can be made by holding down CRL key.
2. Edit then ranslation or select the Edit > Edit > ranslate option
rom the menu to open the ranslation dialog.
In3. ranslation vector eld type coordinates: (-20;0;0) or select 2 points on the
screen that represent the translation vector such as the bottom o 2 columns (besure that in Edit mode option Copyis checked on) and in Number o repeti-
tions type 2.
I entered by coordinate, click4. Execute button then close ranslation and Edit
dialogs.
Te structure should look as shown below:5.
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5STRUCTURE ANALYSIS
Autodesk Robot Structural Analsis - Getting Started Guide
Figure 11 - Complete 3D rame structure view.
STRUCTURE ANALYSIS
Here we start the analysis process, but rstly we will tell Robot to make automatic code
combinations (rom any one o the list o Codes in Job Preerences):
Select1. Loads > Automatic Combinations option rom the menu to open the
Load Case Code Combinations dialog. Select the Full automatic combinationsoption. Te program will now automatically assign a number o combinations to
nd the most onerous load combination.
Click2. OK button automatic calculation o code combinations will be done.
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RESULTS PREVIEW | Displaying beam results graphically
3. Calculations click this icon or select the Analysis > Calculations option
rom the menu to start calculation process.
Once the calculations are completed the inormation:4. Results (FEM): Availableshould be displayed at the top o the screen.
A ke strength o Robot is the possibilit to dene a wide range o analsis tpes (linearstatic, non-linear geometr and material, buckling, modal analsis, harmonic analsis,seismic analsis, time histor analsis etc.)I the user wishes to see these possibilities, he/she ma look in the Aa > Aat > chag aa pull down menu.
However, or this simple example, we will just assume the deault linear static tpe o analsis.
NOTE:
RESULTS pREVIEW
Dislaying beam results graically
In this step, we displayMy Moment bending moment on bars or selected load case:
Click1. icon at the bottom o the screen to switch o the section shape and
simply display a stick model or all members.
In the list o dened load cases choose the desired load case to display:2.
Select3. Results > Diagrams or Bars rom the menu to open
Diagrams dialog.
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5RESULTS PREVIEW | Displaying beam results graphically
Autodesk Robot Structural Analsis - Getting Started Guide
On the4. NM tab checkMy Moment (this shows the major axis bending moment
on the beams), then clickNormalize button (to auto scale) and clickApplyto
display bending moments diagrams or all beams:
Figure 12 - Diagram o bending moment.
To displa numerical values o internal orces in the dagra dialog, click on tab para-r, dagra r tick labels and A.
NOTE:
In a similar way, diagrams that exhibit other values available rom the5. Diagrams
dialog can be viewed.
ick o6. MyMoment and Apply.
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RESULTS PREVIEW | Displaying results on bars in tabular orm
Dislaying results on bars in tabular orm
In this step, you display internal orces or bars or particular load cases and combinations:
Select1. View > ables to open ables: Data and Results dialog, then tick on Forc-
es and OK to view all inormation about internal orces (Values, Envelope, Global
extremes).
Figure 13 - Example o results presentation in tabular orm.
In a similar wa, tables that exhibit other values available rom the ta: daa a Rdialog can be viewed.The tables can easil be exported to MS Excel (b right hand mouse click) and tables canalso be sorted b choosing certain load cases, member tpes etc. Advanced users can alsodene groups and displa results onl or these groups. Column values ma be placed inorder b simpl clicking the appropriate column header, or example FX.
NOTE:
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6RESULTS PREVIEW | Stress analysis
Autodesk Robot Structural Analsis - Getting Started Guide
Close the2. Forces table.
Click3. icon at the bottom o the screen to turn sections shape back on.
Stress analysis
In this step, we learn how to obtain and analyze stress diagrams and maps or the entire
bar structure:
Switch layout to1. Stress Analysis - structure. o do this go to the Robot layouts
selection combo-box (right top screen corner)
Click the2. Results option and later the Stress Analysis - structure.
Figure 14 - Layout selection pull-down menu (stress analysis selection).
Now the screen is divided into three main parts:the graphic viewer where the structure is displaed,the sr Aa -srr dialog to managing stress analsis. This dialog is usedor selecting stresses and determining the manner o stress graphical presentationthe sr Aa -srr results table to view actual values o stresses or bars
NOTE:
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RESULTS PREVIEW | Stress analysis
In the list o dened load cases choose the load case or which the results will be3.
displayed:
On the4. Diagrams tab located in the Stress Analysis - Structure dialog select the Max
option rom the Mises eld, then Apply(the result should look as shown below):
Figure 15 - Stress analysis in diagram orm.
This dialog allows selecting a user-dened stress and a set o basic stress tpes: normal,tangent, Mises and Tresca.
NOTE:
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6RESULTS PREVIEW | Stress analysis
Autodesk Robot Structural Analsis - Getting Started Guide
On the5. Stress Analysis - Structure dialog tick o the Maxoption rom the Mises
eld, then Apply.
On the6. Maps - Deormation tab located in the Stress Analysis - Structure dialogtick the Deormation option on, then Apply.
7. Stress Analysis or structure - maps - click this icon or select the Results
> Stress Analysis > Stress Maps option rom the menu to view the structure
together with section shapes and accurate detailed stress maps on these sections
(as shown in the gure below).
Figure 16 - Stress analysis in maps orm.
The size o member sections in stress maps is b deault greater than the real size o
member sections so that the stress maps presented or these sections are more readable.Real proportions between the member length and dimensions o the member cross sectioncan be obtained ater pressing the H ke on the keboard. These proportions can bemodied using the ollowing kes on the keboard: pgu and pgd.
NOTE:
Close the8. Stress Analysis structure (3D View) window.
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PREPARATION OF PRINTOUTS | Capturing views and data
pREpARATION OF pRINTOUTS
Robot has a powerul built in report generator that allows the user to compile and
manipulate standard data, plus screen captures o graphical and tabular data.
Caturing views and data or te calculation note
In layouts selection combo-box (right top screen corner) switch to1. Start layout.
Te picture o the model is shown on the screen with no other windows. Lets as-
sume we want to print this image.
Click2. icon (top o the screen on the standard toolbar) to open the Screen
Capture dialog.
Figure 17 - Screen capture parameters defnition.
In the above dialog change3. Screen capture orientation to Horizontal and type
name o the picture as a Structure View.
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6PREPARATION OF PRINTOUTS | Preparing printout composition
Autodesk Robot Structural Analsis - Getting Started Guide
The sr ar a enables the user to choose automatic update o screenshots this means that the images and data are automaticall updated should the structure bechanged. Alternativel, the can be saved in JPG ormat.
NOTE:
Click4. OK to close the dialog.
In the list o dened load cases choose the5. 2:LL1 load case.
Click6. icon (top o the screen on the standard toolbar) to open the ScreenCapture dialog.
In this dialog change7. Screen capture orientation to Horizontal and leave name
o the picture as a Structure Cases 2: (LL1).
Click8. OK to close the dialog.
In the same way prepare pictures:9. Structure Cases 3: (WIND1) and Structure
Cases 4: (WIND2)
prearing rintout comosition
Here we prepare the layout o the report:
Click1. icon (top o the screen on the standard toolbar) to open the Printout
Composition - Wizard dialog.
On the2. Standard tab, select report components (click them while pressing CRL
key) as shown below:
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PREPARATION OF PRINTOUTS | Preparing printout composition
Figure 18 - Report components selection.
Click3. Add to transer the marked components to the right panel which shows the
actual layout o the printout.
On the4. Screen Captures tab select all screenshots.
Click5. Add to transer marked components to the right panel.
Using icons6. move particular components to the order shown below:
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6PREPARATION OF PRINTOUTS | Printing and exporting the calculation report
Autodesk Robot Structural Analsis - Getting Started Guide
Figure 19 - Screen captures selection.
printing and exorting te calculation reort
In this step, we learn how to print and save the calculation note:
Click1. Previewto display the report:
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PREPARATION OF PRINTOUTS | Printing and exporting the calculation report
Figure 20 - Report preview.
Beore printing o the report, save our project. In this case we save it as Fra 3d.Thanks to this operation actual inormation about project will be used to generate the docu-mentation (i.e. project name on the title page as shown above). To change this inormation(and man more) later we can use F > prj rr option rom the top menu.
NOTE:
Using buttons2. browse each page o the Report.
I ou need to make some corrections to the laout or tabular content ou can edit them
directl in this preview window. To do this, ou should press icon (top bar) and doubleclick on the appropriate item to be edited. The general Robot window will be open, which al-lows the user to make changes or corrections. Ater that press button Rr prvw tocontinue the preview o the calculation report.
NOTE:
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6PREPARATION OF PRINTOUTS | Printing and exporting the calculation report
Autodesk Robot Structural Analsis - Getting Started Guide
Click3. Page setup. Te Page and Margins tab allows the user to set various pa-
rameters.
Click4. Header/ooter tab. In this tab you can dene the look o the title page,header and ooter.
Figure 21 - Page setup settings.
Click5. OK to close the dialog.
Close the preview o report printout window.6.
I desired, In7. Printout Composition Wizard dialog click on Print button to
print all reports.
o save the calculation note, click on icon8. to export the report to .html or-
mat, to export to .rt (MS Word) ormat or to save in .sxw (Open O-
ce) ormat.
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RC AND STEEL MIXED STRUCTURE
Synopsis:
Te purpose o this example is to show the ease o denition, analysis and
presentation o results or a 3D rame and shell structure (mixed RC and steel) in
Robot.For this example, it is assumed that Autodesk Robot Structural Analysis 2011 is installed
on the PC.
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7CONFIGURATION OF THE PROGRAM
Autodesk Robot Structural Analsis - Getting Started Guide
CONFIGURATION OF ThE pROGRAM
Following installation o Robot, the user may congure the working parameters
or Preerences. o do this:
Start the Robot p