Abstract
The energy transmitting boundary used in programs such as FLUSH and ALUSH is a very accurate and useful technique for the earthquake response analysis of the soil-structure interaction systems. However, the analysis is applied only for the linear analysis or the equivalent linear analysis because it can be calculated only in the frequency domain. The author has proposed some transform methods of the frequency dependent impedance to the time domain. In this paper, an earthquake response analysis method for the soil-structure interaction system using the energy transmitting boundary in the time domain is proposed. First, the transform of the transmitting boundary matrices to the time domain using the author's methods is studied. Then, a time history earthquake response analysis is performed using the boundary. Through these analyses, the efficiency and the validity of the proposed method are confirmed.
