Foundation performance

A foundation is the supporting part of a structure that transmits the load from the superstructure to a suitably stable ground stratum.

Generally, a properly designed and performing foundation system should:

  • support the mass of the structure without excessive settlement
  • transfer large lateral earthquake loads between the structure and the ground (the design may achieve this by transferring load directly to a solid bearing stratum or spreading the load over a sufficiently large area)
  • resist earthquake-induced overturning forces
  • resist both transient and permanent ground deformations without inducing excessive displacements in the structure or in-plane distortions in elements supported by the structure (such as partitions and claddings).