How can I specify different subgrade moduli for a large floor slab?

Answer

The definition of surface supports (foundation) in RFEM is a property of the surface.


Figure 01 - Dialog Box "Edit Surface" with Definition of Support

This means that you have to divide the entire floor slab - depending on the areas with different subgrade moduli - into several surface components.

Keywords

Foundation Surface support Subgrade module Support Support Foundation overlap Soil model Elastic surface foundation

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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
RFEM Other
RF-SOILIN 5.xx

Add-on Module

Soil-structure interaction analysis and determination of elastic foundation coefficients based on soil data

Price of First License
760.00 USD