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FEM-Design

The FEM-Design PreDesign module is used tp perform a pre-calculation for reaction and internal forces of load bearing walls and columns and to estimate material quantities for the entire structure.

Automatic wind, snow and deviation load generation ensure fast and easy defi nition of the complete staticalmodel which later can be opened in 3D Structure for in-depth analysis and design.

With FEM-Design Plate, concrete slabs or other two-dimensional transversely loaded structures can be analysed.

Reinforced concrete is designed according to code, accounting for cracked section analysis, shrinkage and creep considering calculated or applied reinforcement.

Required reinforcement is calculated for ultimate or serviceability limit state, checking defl ections and/or crack width. Alternatively, reinforcement can be applied and checked according to code and defl ections and crack patterns displayed.

FEM-Design Plate

The Wall module offers design solutions for plane stress problems, such as shear and load bearing walls as well as for other kinds of structural elements such as webs of deep beams or steel plates.

Concrete walls are designed according to EC2 and dif-ferent national codes. Design forces are calculated as a combination of normal and shear stresses in the wall.

Tension reinforcement requirements are calculated and a check is made that allowable compressive stresses in the concrete are not exceeded.

FEM-Design Wall

PreDesign

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Villa Suprême, the head offi ce in Malmö, Sweden

www.strusoft.com

StruSoft’s mission is to increase the overall effi ciency in the Building Industry

Structural Design Software in Europe AB (StruSoft) is a Swedish innovative software company with more than 25 years of experience in specialized software applications for the building industry.

IMPACT PrecastA BIM software for production of concrete precast elements. Based on AutoCAD® and open database technology.

WIN-StatikA series of powerful, but easy to use applications for common design tasks such as beams, columns or frames.

IMPACT ReinforcementAn AutoCAD®-based application for detailing and scheduling reinforcement.

FEM-DesignAn advanced 3D FEM software for analy-sis and design of complex structures with concrete, steel and timber elements.

VIP-EnergyA series of software covering the calculation of the entire building energy balance.

FEM-Design 3D-Frame is an analysis and design soft-ware for three-dimensional frame and truss structures.

Common structures can be generated along with loads in a few simple steps using the parametric input wizard. In the Section Editor, complex arbitrary sec-tion shapes (opened or closed) can be created for bars, beams and columns. All sectional parameters are auto-matically calculated for the current section.

Using relative constraints, connections or intersections between elements can be modelled with ease. Eccen-tric 3D bars or semi-rigid connection of columns and beams can be modelled in this way.

The analysis includes 2nd order analysis, dynamic analy-sis of eigenfrequencies and vibration modes, seismic calculations according to response spectra, stability and imperfection calculations.

With “soft spring” procedures, an automatic check of insuffi cient supports and connections can be run to solve instable structures.

Steel structures are designed according to EC3 or national codes. Steel bars can be checked with regard to 1st or 2nd order theory where imperfections are automatically calculated by connecting the 2nd order analysis to one of the critical buckling modes. The de-sign is performed for stresses, fl exural buckling, lateral torsional and torsional buckling, web buckling and fl ange buckling.

Concrete design for 3D beams and columns is also available for EC2 and national codes.

3D Frame

Features

Simple & user-friendly working environmentIntelligent data connections via DXF, DWG and IFC as well as direct links from Tekla® and Revit® StructureWizard for quick and easy input of slab and frame systemsPoint, line and surface supports with rigid, free or elastic stiffness componentsRelative constraintsSection editor for defi ning sections for bars, beams and columns with arbitrary shapesAutomatic generation of most unfavourable load combinations according to standardsA powerful automatic optimal fi nite element mesh generator for any geometryNo limit to the number of fi nite elementsPeak smoothingAnimation of displacement, vibration and stability resultsAnalysis and steel design of straight bars with vary-ing cross sections and bars with hollow space and stiffenersSteel design according to 2nd order theory and imperfectionsPowerful concrete design and reinforcement checking

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Model

The geometry is easily created in 3D with the use of intui-tive tools such as axis and storey-system, region opera-tion, user-defi ned views and user-coordinate-system. Underlays of CAD-fi les can be inserted as DWG or DXF.

Complete 3D architectural or structural models can be imported via IFC model-based interface or from the direct links provided from Tekla® and Revit® Structure.

Arbitrary shapes of shell elements can be created using solids and solid operations.

Relative constraints allow connections between structural objects to be modelled accurately. This can be used for analyzing connection forces between prefabricated ele-ments.

As well as normal point, line and surface loads, tempera-ture, stress, and seismic loads can also be defi ned.

Analyse

Static, dynamic (eigen frequencies), stability and seismic analysis can be carried out for the entire structure at once.

The fi nite element mesh is automatically generated with optimal element sizes and automatic refi nements at sup-ports and element connections, freeing the user to focus on the engineering task. There is no limit to the number of elements.

A number of display methods can be used for viewing results including graphs, contour lines, colour palettes in 3D for the whole structure, in 2D for each wall or slab, or as arbitrarily placed sections.

Absolute or local maxi-mum and minimum values can be displayed automatically, or the user can point anywhere on the structure to get a numeric result value.

Design

Steel design is carried out according to EC3 or several national codes using the steel design module (see 3D-Frame).

Steel bars can automatically be converted to shell ele-ments, allowing varying cross-sections, cut-outs and stiff-eners, and checked for buckling shapes and utilisation for fl exural-, torsional-, lateral torsional- and local buckling.

The powerful concrete module designs according to EC2 or national codes accounting for shrinkage behaviour.

Reinforcement can be designed according to defl ection and crack-width criteria as well as ultimate limit state design.

Applied reinforcement in the concrete elements is checked according to code, and accurate crack-width and defl ection calculations can be made for specifi c rein-forcement.

FEM-Design 3D Structure is an analysis and design soft-ware for complete structures containing a combination of shell elements, slabs, walls, bars, beams and columns with arbitrary loads.

The steel and concrete modules allow code-specifi cdesign of all elements in the entire 3D-model.

Static-, dynamic- and seismic analysis can be performed as well as solving global stability problems.

FEM-Design 3D Structure

Residential building in Vällingby, Sweden. Three 14 storey buildings with challenging fl ag walls bearing 11 fl oors. FEM-Design 3D Structure was used to design walls and con-nections. Ljustech Konsult AB

One challenge of complex calculation projects is the presentation and documentation of results, whether for municipalities, clients or for archiving purposes.

FEM-Design offers an easy and elegant way to create complete and conceivable documentation of projects containing a cover page with title table, chapters, fi gures, texts, tables, headers/footers, images and table of contents.

Images are easily set up to display desired result, dis-playmode, scales and text size and are automatically refreshed when changes have been made to the model or calculation.

Templates can be edited and stored in order to re-use standard styles for other projects.

Results can also be exported to Microsoft® Word and Excel.

Documentation

Entrance to the underground train station at Triangeln, Malmö, Sweden. Integra Engineering AB Reinforcement design results for a T-section beam.

Steel design results. Above: code check for a HEA-beam. Above right: Buckling check for a shell element beam. Second entrance to the underground train station at Tri-

angeln, Malmö, Sweden. Integra Engineering AB

Utilization results for a complete structure and a single bar.

Analysis results for a T-section beam.

Concrete dome on commercial building in Dubai, UAE. Above left: wind load defi nition. Above right: normal forces. AL HAWRAA Engineering Consultants for ICON Precast.

Example of documentation output.