据此幅值谱和一个随机相位谱，并与一个时程包络函数结合，合成一个子震时程。
A time history is synthesized from this amplitude spectrum and a random phase spectrum, combined with an envelope function.
滑移隔震结构地震反应的分析和计算可通过滑移隔震结构非线性反应谱进行简化。
The analysis and computation of the earthquake response of sliding base-isolation system could be simplified by inelastic response spectrum.
分析结果表明，对于较为普遍的主要受直下型地震和近震潜源影响的地区，在长周期部分，一致概率谱总体小于规范谱。
The results show that in the most areas influenced mainly by the potential sources of the epicentral earthquakes and the regional earthquakes, PCS is generally lower than CDS in the long periods.
对大量地震反应谱进行了统计，探讨了滑移隔震结构反应谱的统计特征。
The statistics for quite a lot of the earthquake response spectrums are carried out, then the statistical characteristics of the response spectrum of sliding structures are discussed.
在工程实际中，需要考虑非经典阻尼对减隔震结构的影响，因此产生反应谱方法不能直接用于计算减隔震结构地震响应的问题。
Engineering practice should consider the effect of non-classical damping, but this hampers the application of simple method, such as response spectrum analysis.
在工程实际中，需要考虑非经典阻尼对减隔震结构的影响，因此产生反应谱方法不能直接用于计算减隔震结构地震响应的问题。
Engineering practice should consider the effect of non-classical damping, but this hampers the application of simple method, such as response spectrum analysis.
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