Computer Analysis of Steel Structures by Staad Pro

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ENGI 7704 Design of SteelStructures

Computer Analysis of SteelStructures by STAAD

Prepared by

Shah Alam

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STAAD PRO 2004 SOFTWARE

STAAD is a comprehensive structural engineeringsoftware that addresses all aspects of structuralengineering analysis, design, verification, and

visualization.

STAAD performs the analysis and design of thestructure for different types of structures, such as

trusses, plane, space (3D), floors (2 D plane and butloads are vertical or out of that plane).

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STAAD Tutorials Giving demonstration for how to use the software by

showing only the basic steps for static analysis.

As STAAD has two main methods of modeling(input editor (script language) and/or through graphical

environment). Tutorials will show only graphicalmethods.

Further readings and more information about theprogram can be found through the internet.For example www.reiworld.com

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STAAD Tutorial No.1

ANALYSIS & DESIGN OF STEEL TRUSS

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TUTORIAL NO.1: STEEL TRUSS

The figure above shows a steel truss from several trusses

supposed to cover a certain area. As shown, the truss has acantilever part its span equals 4.0m. The proposed truss depth is3.0m.The loads as shown, are concentrated at the truss joints. Thevalues of its load case are shown. Use all the data you take in the

Steel Course for analysis and design.5


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Main Steps of Modeling

Entering job information. Building model geometry.

Defining member properties, sections.

Assigning loads (load cases, combinations..) Defining pre-analysis print out, analysis type,and post-analysis printout.

Defining design requirements.

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How to Start the Program?From Start Menu- Select the STAAD.Proicon from the

STAAD.Pro 2004program group.

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Th STAAD G hi l E i t ill b i k d d th


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The STAAD Graphical Environment will be invoked and thefollowing screen will appear:

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1. ENTERING JOB INFORMATION.

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2 Building Model (Structure) Geometry


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2. Building Model (Structure) Geometry

How to Define the Truss Geometry?One of the methods that you can createconstruction lines and then draw onthese lines the truss members.

Noting that the number ofconstruction lines is excludingfirst line.


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How to see the Diagram Labels (ex. Node numbers, beam numbers, etc.?

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Node and beam labels are a way of identifying theentities we have drawn on the screen, and veryuseful when dealing with the output results.

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Property:

In which we can define or choose sectionsproperties of the members of the truss.Spec.:

In which we can define or choose membersspecifications.Support:In which we can define the supports properties(restraints).Load:In which we can define the applied loads, load

cases, load combinations.MaterialIn which we can define the material properties.

(ex. E, density, etc.)

3. Defining member properties, sections

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P t


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Property:

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A i i th ti t d t th d l


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Assigning the sections created to the model

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S t


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Supports

By clicking on the support

icon the shown window will

appear.

We have to create new

kinds of supports.

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4 Defining Loads


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4. Defining Loads

The creation andassignment of load cases

involves the following two

steps:1. First, we will be

creating all 3-load cases.

2. Then, we will be

assigning them to the

respective

members/nodes.

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Also, we can define load combinations according to required.


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For example, we can create a load combination1.25 D.L. + 1.5 L.L + 0.8 W.L.

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Date post:	06-Apr-2018
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Computer Analysis of Steel Structures by Staad Pro

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