EARTHQUAKE RESPONSE ANALYSIS OF A VIADUCT WITH HORIZONTAL FORCE DISTRIBUTED STRUCTURE USING STRONG MOTION OBSERVED DURING THE 2011 OFF THE PACIFIC COAST OF TOHOKU EARTHQUAKE

Abstract

 Dynamic analysis is widely used for the seismic design of the bridge with horizontal force distributed structure in recent years. There is few research on dynamic analysis of such bridges using real earthquake data. In this research, we carried out dynamic analysis using accelerograms recorded during the 2011 off the Pacific coast of Tohoku earthquake (M_w9.0). The analytical earthquake response shows a good agreement with the observed response when colliding and friction forces acted between sideblocks and shoes are taken into account.