我国现行抗震设计规范中给出的反应谱依赖于两个参数，即地震烈度和场地土类别。
The response spectrum given by present design standards depends on two parameters, i. e. earthquake intensity and site classification.
本文对各种形式的弹塑性反应谱的研究进行了综合讨论， 并指出要使弹塑性反应谱能用于抗震设计应解决的关键问题。
This paper discusses the various kinds of elastic-plastic response spectra and points out the key problem which must be solved for their use in seismic design.
几十年来，先后诞生了拟静力方法、反应谱方法、时程分析方法、基于性能的设计方法等抗震设计方法。
For the recent decades, the pseudo static method, the response-spectrum analysis, time-history analysis, performance-based design method, spring out early or later.
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