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


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 into several sub-surfaces, depending on the areas with different moduli of subgrade reaction.


Foundation Surface support Modulus of subgrade reaction Restraints 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

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

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