对桥梁的震害机理和破坏形式进行了系统分析，阐述了桥梁抗震设计的研究现状及抗震设计新方法的研究进展，并通过一实例对新旧抗震设计方法进行了对比，指出抗震设计新方法的运用可有效提高桥梁的抗震性能。%The seismic damage mechanism and destroy forms are analyzed in this paper and the study status and some new methods of bridge seis-mic design are expounded. In the end,by comparing with the old seismic design methods,points out the adopion of new methods for anti-seismic design can promote bridges’anti-seismic performance effectively according to examples.
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