| 土层随机地震反应及动力可靠性分析 |
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| 作者单位： | 东北大学,沈阳,110004;沈阳机车车辆有限责任公司;东北大学,沈阳,110004;中国联合工程公司 |
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| 摘 要： | 根据随机振动理论,研究了土层随机地震反应动力分析方法,介绍了场地土在动剪模量的变化分别为线性和指数时的动力方程的求解问题,分别给出了基岩输入地震加速度为白噪声和过滤白噪声时土层反应及各阶振型反应的统计参数,从而建立了可靠性分析的计算方法,并且对同一场地土采用两种动剪模量变化形式进行了自振频率的对比计算和动力可靠度计算。
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| 关 键 词： | 场地土 随机反应 动剪模量 自振频率 可靠度 |
RESPONSE AND DYNAMIC RELIABILITY ANALYSIS FOR RANDOM SEISMIC OF SOILLAYERS |
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| Wang Hong-wei Chen Xiao Zhan Hui-le Liu Bin Yan Lei Zhang Ji-song. RESPONSE AND DYNAMIC RELIABILITY ANALYSIS FOR RANDOM SEISMIC OF SOILLAYERS[J]. Building Technique Development, 2007, 34(3) |
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| Authors: | Wang Hong-wei Chen Xiao Zhan Hui-le Liu Bin Yan Lei Zhang Ji-song |
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| Affiliation: | Wang Hong-wei Chen Xiao Zhan Hui-le Liu Bin Yan Lei Zhang Ji-song |
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| Abstract: | On the basis of random vibration theory,the analyzed methods for soil layer's random seismic response dynamic were studied in this paper.And it also presented the solutions to the dynamic equations when the dynamic-shear- modulus of ground soil varies between linear and index.For when the bedrock input seismic acceleration is white noise or filter white noise,the soil layer's response and the statistic parameters for each vibration response were also given respectively,which establishes a reliable analyzed calculative method.And also the natural frequencies comparison calculation and the dynamic reliability calculation were carried out for the same ground soil under the two different dynamic-shear-modulus variations. |
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| Keywords: | Cround soil Random response Dynamic shear modulus Natural frequencies Dynamic reliability |
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