| 下辽河地区典型土层地震反应时域和频域方法对比 |
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| 引用本文： | 齐鑫,肖遥.下辽河地区典型土层地震反应时域和频域方法对比[J].地震工程与工程振动,2012,32(1):23-29. |
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| 作者姓名： | 齐鑫 肖遥 |
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| 作者单位： | 辽宁省地震局,辽宁沈阳,110031 |
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| 摘 要： | 为了解决一维频域等效线性化方法在计算下辽河地区深覆盖场地地震反应时不够准确这一问题,本文采用一维时域非线性计算程序DEEPSOIL对该地区典型土层地震反应进行计算,并将结果进行对比分析。研究结果表明,在大震情况下,时域非线性方法有效地避免了等效线性化方法加速度峰值不合理和特征周期值偏高的现象。用时域非线性方法计算该类型场地大震情况,结果更加合理。
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| 关 键 词： | 频域等效线性化方法 时域非线性方法 加速度峰值 特征周期 |
Comparison of seismic responses of typical soil layers in Liaohe River plain by using time domain method and frequency domain method |
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| QI Xin
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XIAO Yao.Comparison of seismic responses of typical soil layers in Liaohe River plain by using time domain method and frequency domain method[J].Earthquake Engineering and Engineering Vibration,2012,32(1):23-29. |
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| Authors: | QI Xin XIAO Yao |
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| Institution: | (Earthquake Administration of Liaoning Province,Shenyang 110031,China) |
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| Abstract: | In order to solve the problem that one-dimensional frequency-domain equivalent linear method is not accurate enough for calculating the seismic responses of the deep sites in Liaohe River plain,we use one-dimensional time-domain nonlinear procedure DEEPSOIL to calculate the seismic responses of typical sites and compare the results.The results shows that the time-domain nonlinear method can get more accurate PGA and Tg values for deep sites when the input ground motions are strong.The results of the time-domain nonlinear method are more reasonable in this case. |
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| Keywords: | frequency-domain equivalent linear method time-domain nonlinear method peak of acceleration Tg |
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