工程力学 ›› 2018, Vol. 35 ›› Issue (9): 1-16.doi: 10.6052/j.issn.1000-4750.2017.04.0280

• 综述 •    下一篇

桥梁结构地震易损性研究进展述评

李宏男1,2, 成虎1, 王东升3   

  1. 1. 大连理工大学建设工程学部, 大连 116024;
    2. 沈阳建筑大学土木工程学院, 沈阳 110168;
    3. 河北工业大学土木与交通学院, 天津 300401
  • 收稿日期:2017-04-11 修回日期:2017-09-13 出版日期:2018-09-29 发布日期:2018-09-15
  • 通讯作者: 成虎(1989-),男,江苏人,博士生,主要从事近海桥梁工程结构抗震研究(E-mail:hoocheng@163.com). E-mail:hoocheng@163.com
  • 作者简介:李宏男(1957-),男,辽宁人,教授,博士,博导,主要从事工程结构抗震、抗风、健康监测与诊断研究(E-mail:hnli@dlut.edu.cn);王东升(1974-),男,内蒙古人,教授,博士,博导,主要从事桥梁及结构工程抗震研究(E-mail:dswang@hebut.edu.cn).
  • 基金资助:
    国家重点研发计划项目(2016YFC0701108);国家自然科学基金重大国际合作项目(51261120375);国家自然科学基金项目(51478074)

A REVIEW OF ADVANCES IN SEISMIC FRAGILITY RESEARCH ON BRIDGE STRUCTURES

LI Hong-nan1,2, CHENG Hu1, WANG Dong-sheng3   

  1. 1. Faculty of Infrastructure Engineering, Dalian University of Technology, Dalian 116024, China;
    2. School of Civil Engineering, Shenyang Jianzhu University, Shenyang 110168, China;
    3. School of Civil and Transportation Engineering, Hebei University of Technology, Tianjin 300401, China
  • Received:2017-04-11 Revised:2017-09-13 Online:2018-09-29 Published:2018-09-15

摘要: 随着基于性能的地震工程全概率决策框架的提出,要求从概率的角度对桥梁结构的抗震性能进行评估,结合结构地震响应分析和结构损伤分析的地震易损性分析受到广泛关注。为了促进国内桥梁结构地震易损性研究的发展,首先回顾了易损性研究的历史阶段与发展过程,评述了国内外桥梁结构地震易损性的研究现状;在此基础上介绍了地震易损性分析的基本原理和研究方法:分别从经验型、理论型以及经验-理论相结合的角度详细介绍了常用的易损性分析方法和一般过程,指出了当前研究中遇到的问题以及存在的局限性;最后,对桥梁结构地震易损性的应用前景和发展方向进行了展望。总结既有研究成果表明,环境因素、地震动、场地条件以及桥梁自身参数等的不确定性问题,地震动强度参数和结构能力指标的合理选择问题,各主要构件之间的相关性及其对桥梁结构整体抗震性能的贡献问题等都是桥梁结构地震易损性研究领域的重要内容。此外,对于更为复杂的情况,包括液化或特殊场地以及特殊大跨度桥梁等的研究,都将对桥梁抗震工程领域的发展具有重要意义。

关键词: 桥梁工程, 综述, 地震易损性, 易损性曲线, 经验分析法, 理论分析法, 地震动强度参数, 结构能力指标

Abstract: In light of the proposed formal probabilistic framework for the Performance-Based Earthquake Engineering (PBEE), it is required to assess the seismic performance of bridge structures on the basis of probability. Seismic fragility analysis, combining the seismic response analysis and structural capacity analysis, has attracted wide attention. To improve the current level of research on seismic fragility analysis for bridge structures in China, firstly, the historic stage and development process of fragility analysis were reviewed, and studies on the seismic fragility analysis for bridge structures were summarized. Subsequently, the basic theory and research approaches of seismic fragility analysis were introduced in detail, i.e., the empirical analysis approach, theoretical analysis approach and the combined empirical-theoretical analysis approach. In addition, the shortcomings of current studies were analyzed. Furthermore, the application prospective and implications for future studies on seismic fragility analysis of bridge structures were suggested. The results indicate that various problems are needed to investigate as vital topics in the area of seismic fragility analysis for bridge structures, i.e., the consideration of uncertainties in environment, ground motions, site conditions and structural parameters, the selection of suitable ground motion intensity measures (IMs) and engineering demand parameters (EDPs), the correlation between components and their contributions to the seismic performance of bridge system, etc. More complicated issues were also identified involving the studies on site liquefaction, special fields and large-span bridges, which are significant for the development of the bridge structural seismic engineering.

Key words: bridge engineering, review, seismic fragility, fragility curve, empirical analysis method, theoretical analysis method, earthquake intensity measure, structural capacity index

中图分类号: 

  • U442.5+5
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