FAQ 000463 EN

Modeling | Structure RFEM RF-IMP RSTAB

A member was divided by several nodes. When I apply the imperfections, each partial member gets its own imperfection.

How can I define an imperfection across all partial members?

Answer

If a member consists of several partial members, you need to specify to which objects the imperfection should refer to when defining imperfections. You have the following options to do this:

Members

The imperfection has an influence on one member or independently on several members.

Member List

The imperfection acts on the entirety of the members to be specified in a list. The predeformations and inclinations are therefore not applied individually to a member, but as a total imperfection to all members of the member list. By means of a member list, the imperfections can be applied so as to cover several members without having to define continuous members.

Sets of Members

The imperfection acts on a set of members or on several sets of members. Like for a member list, the parameters are applied to all the members contained in a set of members.

The automatic creation of imperfections or imperfect systems is possible with the add-on modules RSIMP und RF-IMP.

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

RFEM Other
RF-IMP 5.xx

Add-on Module

Generation of equivalent geometric imperfections and pre-deformed initial structures for nonlinear calculations

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