土木工程与管理学报2016，Vol.33Issue(4)：45-51,7.
拉索减震支座桥梁地震易损性分析
Cable-sliding Friction Seismic Bearing Bridge Seismic Fragility Analysis
摘要
Abstract
The cable-sliding friction seismic bearing ( CSFAB ) effectively solves the fundamental problem of isolation measure , that is the reasonable balance between force and displacement of bridge structure responses under earthquake .Meanwhile , the effect of preventing beams from falling down is also very significant .This paper introduces a theoretical framework of performance-based earthquake engineering , establishes a finite element model of three-span continuous beam bridge and does the bridge structures of different CSFAB design parameters with probabilistic seismic demand analysis and fragility analysis based on multidimensional damage criterion .The computing results show that design parameters influence significantly the fragility probability . Parameters of the bearing should be optimized in seismic design in order to achieve the reasonable balance between force and displacement of bridge structure responses under earthquake .The probabilistic seismic fragility analysis method used in this paper is also applicable to other types of isolation bearings , and lays the foundation of economic analysis and decision analysis for the further step .关键词
拉索减震支座/地震易损性/地震需求/性能/概率Key words
cable-sliding friction seismic bearing ( CSFAB )/seismic fragility/seismic demand/performance/probability分类
交通工程引用本文复制引用
党新志..拉索减震支座桥梁地震易损性分析[J].土木工程与管理学报,2016,33(4):45-51,7.基金项目
国家自然科学基金 （）
