The dynamic structural behaviour and basic analysis method for aseismic design of underground structures are studied.

本文分析论述了地下结构的抗震特性，抗震分析的基本方法。

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To set up an. aseismic design method and its research for Metro project has won many concerns day by day .

对地下铁道开展建立抗震设计方法的研究正逐渐得到人们的关注。

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An approximate calculating method and a concept of two-level aseismic design for high-rise structures are proposed in this paper.

本文提出了高层抗震结构设计的一个近似计算方法，以及对高层抗震结构分二次设计的设想。

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