Soil-structure interaction (footings and pile caps) is a CYPECAD module with which the settlement of the foundations and their interaction with the rest of the structure, regarding forces and deformations, can be considered. The soil-structure interaction is considered by defining elastic stiffness constants for the foundation elements.
For footings, the stiffness is entered as the subgrade modulus. Similarly, for pile caps, users must define the axial stiffness for each pile, which is determined by the ratio between its load and the settlement that is produced.
