EVALUATION SEISMIC RESPNONSE OF A CURVED BRIDGE BASED ON ROLLER BEARING SUPPORT FAILURE TESTS AND DYNAMIC ANALYSES

Abstract

 The objective of this study is to identify the effect of horizontal loading direction on lateral deformation and stiffness of roller bearing support and to investigate the seismic behavior of curved bridge with roller bearing support. The stiffnesses of roller bearing supports under the roads in 3 directions were determined based on failure tests, and the dynamic analyses of curved bridge models were conducted using the stiffnesses of roller bearing supports determined experimentally. The seismic responses of piers and superstructure obtained from dynamic analyses using the bearing model based on experiments compared with those obtained from dynamic analyses using the model using the current bearing model.