Earthquake response analyses of buildings considering soil-structure interaction using energy transmitting boundary in the time domain

Abstract eng:
The energy-transmitting boundary, which is developed and improved by Lysmer, Waas, Kausel, etc., is a quite efficient technique for the earthquake response analysis of buildings considering soil-structure interaction using in the models of the finite element method (FEM). However, it is applicable only in the frequency domain. The author has proposed methods for transforming frequency dependent impedance into the time domain. In this paper, an earthquake response analysis method for a soil-structure interaction system, using the energy-transmitting boundary in the time domain, was proposed. First, the transform of the transmitting boundary matrices to the time domain using the proposed transform method was studied. Then, time history earthquake response analyses using the boundary were performed. Through these studies, the validity and efficiency of the proposed methods were confirmed.

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