SITE RESPONSE ANALYSIS OF KLANG VALLEY SOIL UNDER DIFFERENT CONSTITUTIVE MATERIAL MODELS

Abstract

This paper presents an investigation on the influence of constitutive models on the seismic response of soil material under impact of earthquake loading. In this study, Site Response Analysis (SRA) is performed to evaluate the seismic response of two selected soil profiles located in Klang Valley area when subjected to three strong earthquake ground motion. The soil profiles are designed to behave under three constitutive models i.e., Mohr Coulomb (MC), Hardening Soil (HS), Hardening Soil Small (HSS). The numerical analyses are conducted using the PLAXIS 2D finite element software. The comparison on seismic deformation of the soil profiles highlights the important role of the constitutive model in modifying the seismic behaviour of the soil.