Clarification of the Damage Mechanism of the Long-Period Bridge System Damaged by the 2016 Kumamoto Earthquake

This study aims to clarify the damage mechanism of a long-period bridge system-the Ohkirihata Bridge damaged in the 2016 Kumamoto earthquake-subjected to the combined effects of long-period pulsive ground motions and surface fault displacements. The target bridge's site-specific waveforms at abutment A1 were estimated using the finite difference method. Linear dynamic analysis with a three-dimensional finite element model of the bridge structure-underground interconnected system was performed to examine the effects of longperiod pulsive ground motions on the coupled responses of essential structural components: superstructure, rubber bearings, abutments, piers, foundations and underground

地震津波複合災害時におけるライフラインの被害推計と応急復旧過程のモデル化

科学研究費助成事業 研究成果報告書：基盤研究(B)2012-2015課題番号 : 2431013

長周期型橋梁に作用する連鎖地震荷重のメカニズム解明とその視覚化

科学研究費助成事業 研究成果報告書：挑戦的研究（萌芽）2019-2021課題番号 : 19K2198