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中文摘要：
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。
英文摘要：
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.
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