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FAQ 003482 EN

14 August 2019

Gerhard Rehm Modeling | Loading RFEM RSTAB

I receive lifting support forces, even though the loads act in opposite directions. What is the cause?

Answer

First, it should be checked in which direction the self-weight of the structural elements acts. You can also display the self-weight graphically by using the "Display navigator" (see Figure 01). It often happens that the user does not convert the data when switching the global Z-axis, in the calculation parameters, and then only adjusts the geometry. The dead load acts in the wrong direction and must be signed correctly in the load case (see Figure 02).

Keywords

Lifting Force Negative support force Dead load

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RFEM 5.xx

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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

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RSTAB 8.xx

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

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