高墩大跨连续刚构桥梁地震易损性分析
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摘要
基于增量动力分析方法,通过非线性地震反应分析,得到整体结构的破坏特征和易损位置,分析适用于高墩大跨连续刚构桥的损伤指标。对高墩大跨连续刚构桥进行整体结构的地震易损性分析时,采用应变作为墩柱损伤指标,位移作为支座损伤指标,绘制了基于整体性能的全桥易损性曲线。
The failure behavior and the vulnerable position of the bridge are studied by nonlinear response analysis,based on incremental dynamic analysis(IDA).The damage index,applying for long-span continuous rigid frame bridge with high piers,is evaluated.The seismic vulnerability problem of the whole bridge is analyzed by using the strain for damage index of piers and the displacement for damage index of bearings.According to the studies above,the fragility curves are constructed based on integral performance of the bridge.
The failure behavior and the vulnerable position of the bridge are studied by nonlinear response analysis,based on incremental dynamic analysis(IDA).The damage index,applying for long-span continuous rigid frame bridge with high piers,is evaluated.The seismic vulnerability problem of the whole bridge is analyzed by using the strain for damage index of piers and the displacement for damage index of bearings.According to the studies above,the fragility curves are constructed based on integral performance of the bridge.
引文
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[8]潘龙,孙利民,范立础.基于推倒分析的桥梁地震损伤评估模型与方法[J].同济大学学报.2001,29(1):10-13.
[9]Agarwal J,Blockley J D.Vulnerability Analysis of Structures[J].IABSE Structural Engineering International,2006,16(2):124-129.
[10]Mazzoni S,Mckenna F,Scott MH,et al.Opensees Command Language Manual 2006[R].
[11]Menegotto M,Pinto P.Method of analysis for cyclically loaded reinforced concrete plane frames including changes in geometry and non-Elastic be-havior of elements under combined normal force and bending[C]//IABSE Symposiumon Resistance and Ultimate Deformability of Structures,Lis-bon,1973:15-22.
[2]梁智垚.桥梁高墩位移延性能力计算方法研究[J].工程抗震与加固改造,2005,27(5):57-62.
[3]李建中,宋晓东,范立础.桥梁高墩位移延性能力的探讨[J].地震工程与工程振动,2005,25(1):43-48.
[4]张菊辉.基于数值模拟的规则梁桥墩柱的地震易损性分析[D].上海:同济大学,2006.
[5]李东升.钢筋混凝土梁式桥的地震破损研究[R].中国地震局工程力学研究所,2002.
[6]黄怡君.高墩大跨连续刚构桥梁地震易损性研究[D].福州:福州大学,2008.
[7]Dimitrios Vamvatsikos and Cornell C A.Incremental dynamic Analysis[J].Earthquake Engineering and Structural Dynamics,2002,31(3):491-514.
[8]潘龙,孙利民,范立础.基于推倒分析的桥梁地震损伤评估模型与方法[J].同济大学学报.2001,29(1):10-13.
[9]Agarwal J,Blockley J D.Vulnerability Analysis of Structures[J].IABSE Structural Engineering International,2006,16(2):124-129.
[10]Mazzoni S,Mckenna F,Scott MH,et al.Opensees Command Language Manual 2006[R].
[11]Menegotto M,Pinto P.Method of analysis for cyclically loaded reinforced concrete plane frames including changes in geometry and non-Elastic be-havior of elements under combined normal force and bending[C]//IABSE Symposiumon Resistance and Ultimate Deformability of Structures,Lis-bon,1973:15-22.
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