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FAQ 004308 | When trying to calculate the design in RF-STEEL Surfaces, I receive Warning No. 1162...

Video 01 - FAQ Explanatory Video

Figure 01 - Orthotropic Surface Not-Designable in RF-STEEL Surfaces Add-On Module

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10 February 2020

FAQ 004308 EN

Alexander Bacon

Add-on Modules

RFEM

RSTAB

RF-STEEL

Steel Structures

Structural Analysis & Design

Finite Element Analysis

When trying to calculate the design in RF-STEEL Surfaces, I receive Warning No. 1162 - Surface No. XX is of the type "Orthotropic" and cannot be designed. What does this Warning mean?

Answer

Orthotropic surfaces are non-linear and cannot be designed within the RF-STEEL Surfaces add-on module. It is possible to get a full stress analysis in RFEM for the orthotropic surfaces defined with the orthotropy type "constant thickness" and compared to limiting stresses manually. For all other orthotropy type, the program is not aware of the geometric properties for the surface at every FE mesh point which is needed to calculate stresses. An extensive and detailed FE model would need to be created. See FAQ 2468 for an example of this. Surface types need to be set to "standard" to be designed within the add-on module. 


Keywords

Orthotropic Surface

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Associated Products
RFEM Main Program
RFEM 5.xx

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

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 Steel and Aluminium Structures
RF-STEEL 5.xx

RF-STEEL 5.xx

Add-on Module

Stress analysis of steel surfaces and members

Price of First License
1,030.00 USD
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