摘要
本文在对最近几次大地震桥梁震害总结基础上,指出桥梁抗震研究的一些关键科学问题和减轻桥梁震害的技术解决方案。在此基础上,介绍了课题组对桥梁抗震研究的若干新进展,内容主要包括复杂受力状态下桥梁主要构件的抗震性能及分析模型、非规则桥梁的抗震分析理论和设计方法、桥梁减隔震技术以及基于纤维增强材料的桥梁抗震加固技术等方面的研究,并展望了今后桥梁抗震研究发展趋势。
The key scientific issues and technology solutions of seismic design of bridges are pointed out based on earthquake damage to bridges in recent great earthquakes in China. The recent research progress of our research team on seismic design of bridges is introduced. The main content in this paper includes : ( 1 ) seismic performance and analytical model of main components of bridge structures under complicated loading conditions; (2) seismic analytical theory and design method of irregular bridges; (3) seismic isolation technology of bridges; and (4) seismic retrofit method of bridges using fiber reinforced polymer (FRP). Finally, state-of-art and future of this research field are discussed.
出处
《地震工程与工程振动》
CSCD
北大核心
2014年第4期1-14,共14页
Earthquake Engineering and Engineering Dynamics
基金
国家自然科学基金项目(51178008)
国家重点基础研究发展计划项目(2011CB013600)
北京市教委科研计划项目(KZ201410005011)
关键词
桥梁工程
抗震性能
分析方法
隔震
抗震加固
bridge engineering
seismic performance
analytical method
seismic isolation
seismic retrofit
作者简介
杜修力(1962~),男,教授,博士,主要从事地震工程和结构动力学等方面的研究.E-mail:duxiuli@bjut.edu.cn