Advantages of Direct Interfaces over General Import

Tips & Tricks

In RFEM and RSTAB, several interfaces are available. To import beam structures, the DSTV interface (*.stp) is the most convenient since there are also supports, hinges, loads and load combinations transferred in addition to the general topology.

For mixed structures consisting of members and surfaces, you can use the *.dxf, *.ifc, *.dgn, *.sdnf, and *.dat formats for the import in RFEM. A particular problem here is that the CAD and structural analysis software “speak different languages.” While a CAD software describes geometry precisely, a structural analysis software concerns the design of components in a simplified model. For example, if there is a wall abutting perpendicularly on another one, it ends at the outer edge of the next wall in a CAD program, while a structural analysis program requires an intersection of the system axes.

As a solution of this problem, the direct interfaces have been developed in cooperation with Tekla Structures and Autodesk Revit Structure. The programs include an analytical model to solve such problems with connections automatically. Moreover, it is possible to adjust the analysis model before exporting a structure.

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RFEM Main Program
RFEM 5.xx

Main Program

Structural engineering software for finite element analysis (FEA) of planar and spatial structural systems consisting of plates, walls, shells, members (beams), solids and contact elements

RSTAB Main Program
RSTAB 8.xx

Main Program

The structural engineering software for design of frame, beam and truss structures, performing linear and nonlinear calculations of internal forces, deformations, and support reactions