Numerical Simulations of the Seismic Response of a RC Structure Resting on Liquefiable Soil

The seismic response of buildings resting on liquefiable soil is a complex problem that still poorly understood despite numerous studies the topic. This paper attempts to enhance understanding this phenomenon by simulating an RC structure and subjected shakes. solid-fluid fully coupled analysis was conducted with OpenSeesPL utilizing 58 earthquake records simulate wide range shaking scenarios. In addition, effect density thickness layer were examined. It noted liquefaction-induced settlement building increased as peak ground acceleration (PGA) increased, where percentage increase ranged between 2.5% 888.0% depending density, layer, PGA predominant frequency shake. However, scatter relationship also due reduced from observed, changed up 55% loose medium, 68% dense. Additionally, results lateral displacement did not show definite trend in PGA, which could be attributed interaction amplification shake changed.