ESTIMATION OF EARTHQUAKE-INDUCED RESIDUAL DEFORMATION OF FOUNDATION STRUCTURE ON COHESIVE GROUND

Abstract

An evaluation method for post-earthquake settlement of foundation on cohesive ground is proposed. The method is based on a relationship between maximum dynamic shear strains and residual volumetric strains obtained from cyclic shear tests of clay. A dynamic centrifuge test of a structural model with eccentric load on clay was carried out. The test was simulated and evaluated by the proposed method. The settlements evaluated showed good agreement with those measured in the test, which proved the proposed method to be appropriate.