| 深覆盖土层动力响应时程分析中Rayleigh阻尼系数的确定 |
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| 引用本文： | 王淮峰,楼梦麟,张如林.深覆盖土层动力响应时程分析中Rayleigh阻尼系数的确定[J].岩土工程学报,2016,38(3):468-476. |
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| 作者姓名： | 王淮峰 楼梦麟 张如林 |
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| 作者单位： | 1. 厦门理工学院土木工程与建筑学院,福建 厦门 361000;2. 同济大学土木工程防灾重点实验室,上海 200092;3. 中国石油大学(华东)储运与建筑工程学院,山东 青岛 266580 |
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| 基金项目： | 国家自然科学基金项目(51408609); 厦门理工学院高层次人才项目(YKJ15011R); 山东省高等学校科技计划项目(J14LG51) |
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| 摘 要： | 合理选择确定Rayleigh阻尼矩阵比例阻尼系数的振型频率对于准确计算场地地震响应有重要影响。将一种高层结构Rayleigh阻尼系数优化方法引入到深覆盖土层的地震响应分析中,并根据土层动力响应的特点进行了相应的改进。选择了28条具有代表性的地震波,通过对某典型深厚土层模型进行地震反应分析,比较了多种Rayleigh阻尼系数计算方法的精度及适用性,给出了深覆盖土层的地震响应分析中Rayleigh阻尼系数的确定方法。
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| 关 键 词： | Rayleigh阻尼 阻尼系数 深覆盖土层 地震响应分析 |
| 收稿时间： | 2014-11-30 |
Determining Rayleigh damping parameters for time history analysis of soil layers with deep deposit |
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| WANG Huai-feng,LOU Meng-lin,ZHANG Ru-lin.Determining Rayleigh damping parameters for time history analysis of soil layers with deep deposit[J].Chinese Journal of Geotechnical Engineering,2016,38(3):468-476. |
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| Authors: | WANG Huai-feng LOU Meng-lin ZHANG Ru-lin |
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| Affiliation: | 1. School of Civil Engineering and Architecture, Xiamen University of Technology, Xiamen 361000, China;2. State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092, China;3. College of Pipeline and Civil Engineering, China University of Petroleum, Qingdao 266580, China |
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| Abstract: | The appropriate selection of frequencies for determining Rayleigh damping parameters is significant for accurate analysis of soil layers with deep deposit. An optimized calculation method for Rayleigh damping coefficients in dynamic analysis of high-rise buildings is introduced to that of soil layers with deep deposit and is improved according to the characteristics of dynamic response of soil layers. The dynamic response of a typical soil model with deep deposit to 28 typical seismic waves is analyzed to compare the calculation accuracy and applicability of several methods for determining Rayleigh damping parameters. And the method for determining Rayleigh damping parameters of soil layers with deep deposit is proposed. |
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| Keywords: | Rayleigh damping damping parameter soil layer with deep deposit dynamic response analysis |
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