ラーメン形式構造の耐震性能向上に関する基礎的研究

Abstract

Recently，Energy absorption members，s uch as buckling-restriained brace，friction damper and oil damper，are used for sismic retrofit of steel arch bridges.However， seismic resistant performance researches which have energy absorption member in the strucure，are not carried out enough. In this stdy, cyclic loading test of rigid frames，which is a part of arch bridge，and the element tests of energy absorption members are performed to obtain seismic resisiance capacities. And, the important informations to develop the seismic resistant performance in the longitudinal direction of arch bridge are shown in this study.