桥梁结构抗震是在地震区建造桥梁，为使其对可能发生的地震有足够安全，或减轻震害而便于修复，要研究桥梁结构抗震。其内容包括桥梁震害宏观调查，桥梁结构的抗震设计和抗震措施。
开展桥梁结构抗震研究，提高桥梁结构抗震性能，是我国交通建设面临的重大课题。
Researches on bridge performance under earthquake are also important topics facing Chinese engineers as to improve bridge seismic performance.
传统的桥梁抗震设计方法，是依靠增加结构构件自身的强度、变形能力来抗震的。
The traditional method of the aseismic bridge design is to ensure the structure to have enough intensity and ductility to resist earthquake.
基于平稳随机振动理论，推导了一般阻尼结构体系反应谱组合方法，以满足大跨度桥梁等结构抗震设计的需要。
A spectral combination rule is proposed based on the theory of random vibration of structures for the need of aseismic design of Bridges, etc.
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