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| 大跨斜腿刚构桥地震易损性分析 | |
| 引用本文： | 郑成龙,龙晓鸿,彭元诚,姜维,廖萍. 大跨斜腿刚构桥地震易损性分析[J]. 华中科技大学学报(城市科学版), 2011, 28(3) |
| 作者姓名： | 郑成龙 龙晓鸿 彭元诚 姜维 廖萍 |
| 作者单位： | 1. 华中科技大学 土木工程与力学学院,控制结构湖北省重点实验室,湖北武汉430074 2. 中交第二公路勘察设计研究院有限公司,湖北武汉,430056 3. 江苏泛亚联合建筑设计有限公司,江苏无锡,214005 |
| 基金项目： | 中央高校基本科研业务费专项资金(2011QN181); 贵州省交通厅科技项目资助 |
| 摘 要： | 针对北盘江预应力混凝土连续刚构桥给出了桥梁易损性曲线的系统性分析方法.采用有限元分析软件SAP2000_V14进行有限元模拟及对每个地震-桥梁样本进行非线性时程分析,建立了以PGA为变量的结构需求概率函数.根据地震作用下塑性铰的曲率延性指标进行抗震性能水准划分,给出了桥梁结构的易损性曲线,从而为桥梁结构基于性能的抗震设计提供基础,对实际工程抗震能力评价有一定的借鉴意义. |
| 关 键 词： | 地震 连续刚构 有限元 易损性曲线 曲率延性 |
Seismic Fragility Analysis of Long Span Continuous Rigid Frame Bridges |
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| ZHENG Cheng-long,LONG Xiao-hong,PENG Yuan-cheng,JIANG Wei,LIAO Ping. Seismic Fragility Analysis of Long Span Continuous Rigid Frame Bridges[J]. Journal of Huazhong University of Science and Technology, 2011, 28(3) | |
| Authors: | ZHENG Cheng-long LONG Xiao-hong PENG Yuan-cheng JIANG Wei LIAO Ping |
| Affiliation: | ZHENG Cheng-long1,LONG Xiao-hong1,PENG Yuan-cheng2,JIANG Wei1,LIAO Ping3 (1.a.School of Civil Engineering and Mechanics,b.Hubei Key Laboratory of Contr ol Structure,Huazhong University of Science and Technology,Wuhan 430074,China,2.CCC Second Highway Consultants Co Ltd,Wuhan 430056,3.Jangsu Pan Pacific(Maunsell) Architectural and Engineering Design Co Ltd,Wux i 214005,China) |
| Abstract: | This paper presents the results of an analytical sei sm ic fragility analysis of Beipanjiang concrete continuous rigid frame bridge.A n onlinear time history response analysis by SAP2000_V14 is performed for each ear thquake-bridge sample to establish the probabilistic characteristics of structu ral demand as a function of peak ground acceleration(PGA).Furthermore,bridge d amage states are defined by curvature ductility ratio and the results are displa yed as fragility curves,thus providing a basis for perf... |
| Keywords: | seismic continuous rigid frame bridges finite element fragility curve curvature ductility |
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