Why do I receive such high contact stresses at the foundation edges of my floor slab?

Answer

Depending on how rigid a foundation body is, the distribution of overloading pressure under this structural component changes as well. In case of non-prestressed foundation bodies that are loaded by a uniform surface load, it is generally assumed that the overloading pressure distribution is a mirror image of the load. The plate forms a subsidence basin. However, the more rigid the plate becomes, the more the contact stress rises towards the edge (theoretically limitless).

Keywords

Distribution of overloading pressure Overloading pressure Contact stress Plate edge

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RFEM Main Program
RFEM 5.xx

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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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RF-SOILIN 5.xx

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

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