This article was translated by Google Translator View original text

When calculating the deformation of my surface model in RF-CONCRETE NL I get implausibly high values, what could be the reason?

Answer

It is quite probable that the high deformations are caused by the consideration of shrinkage and the horizontal support in the model.

The shrinkage is considered internally on the load side as a strain, but in this context, failure due to the shrinkage strain is also possible. If the shrinkage strain is prevented by a non-relocatable horizontal support, forces are generated which may lead to failure of the concrete and thus to a significant increase of the deformations or even to the instability of the model.

In this context, it is important that the boundary conditions of the model are represented as realistically as possible when using the nonlinear deformation analysis.

Keywords

Shrinkage Deformation Implausible High Instability Matrix Singular Reinforced concrete State II

Downloads

Contact us

Contact Dlubal Software

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

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
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 Concrete Structures
RF-CONCRETE NL 5.xx

Add-on Module

Physical and geometrical nonlinear calculation of beam and plate structures consisting of reinforced concrete

Price of First License
1,300.00 USD