I have problems with the definition of equivalent imperfections in RSTAB. Which factors do I have to consider in a correct input?

Answer

In general, you have to pay attention to the following:

  • The members must have the same member rotation.
  • The direction for the input of imperfections is related to the local axes y and z. A relation to the principal axes u and v is also possible in case of deviating principal axes.
  • It is also possible to influence the position by a change of signs for the imperfection value.

Therefore, when defining imperfections, it is often useful to display the local member axis systems: select a member by right-clicking it and activate the display of the local axis systems in the shortcut menu.

  • Views 20x
  • Updated 10/21/2020

Contact us

Did you find your question?
If not, contact us via our free e-mail, chat, or forum support, or send us your question via the online form.

(267) 702-2815

info-us@dlubal.com

Online Training | English

RFEM for Students

Online Training 11/10/2020 10:00 AM - 1:00 PM EDT

Online Training | English

RFEM | Timber Basics

Online Training 11/18/2020 1:00 PM - 4:00 PM EDT

RFEM for Students | Part 3

Online Training 11/30/2020 9:00 AM - 12:00 PM CET

Online Training | English

RFEM | Steel Basics

Online Training 12/08/2020 9:00 AM - 12:00 PM EDT

RFEM for Students | Part 3

Online Training 12/11/2020 3:00 PM - 6:00 PM CET

Soil-Structure Interaction in RFEM

Soil-Structure Interaction in RFEM

Webinar 10/27/2020 2:00 PM - 2:45 PM CET

NBC 2015 Modal Response Spectrum Analysis in RFEM

NBC 2015 Modal Response Spectrum Analysis in RFEM

Webinar 09/30/2020 2:00 PM - 3:00 PM EDT

Documenting Results in the RFEM Printout Report

Webinar 08/25/2020 2:00 PM - 2:45 PM CEST

ACI 318-19 Concrete Design in RFEM

ACI 318-19 Concrete Design in RFEM

Webinar 08/20/2020 2:00 PM - 3:00 PM EDT

How to Be More Productive Using RFEM

How to Be More Productive Using RFEM

Webinar 07/07/2020 3:00 PM - 4:00 PM CEST

Introduction to Solid Modeling \n in RFEM

Introduction to Solid Modeling in RFEM

Webinar 06/30/2020 2:00 PM - 3:00 PM EDT

Modeling with Solids in RFEM

Modeling with Solids in RFEM

Webinar 06/09/2020 3:00 PM - 3:45 PM CEST

CSA A23.3 Concrete Design in RFEM

CSA A23.3:19 Concrete Design in RFEM

Webinar 05/14/2020 2:00 PM - 3:00 PM EDT

Programmable COM Interface for RFEM/RSTAB

Programmable COM Interface for RFEM/RSTAB

Webinar 05/12/2020 3:00 PM - 3:45 PM CEST

RFEM Other
RF-IMP 5.xx

Add-on Module

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

Price of First License
760.00 USD
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

Price of First License
2,550.00 USD
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

Price of First License
3,540.00 USD