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| 地震作用下结构随机阻尼对结构位移的影响 | |
| 引用本文： | 范么清,杨志勇,李秋胜.地震作用下结构随机阻尼对结构位移的影响[J].同济大学学报(自然科学版),2006,34(11):1436-1440. |
| 作者姓名： | 范么清 杨志勇 李秋胜 |
| 作者单位： | 1. 同济大学,土木工程防灾国家重点实验室,上海,200092 2. 武汉理工大学,土木工程与建筑学院,湖北,武汉,430070 3. 香港城市大学,建筑工程系,香港 |
| 摘 要： | 考虑地震地面加速度模型为平稳过滤白噪声模型，均值假定为零，分析了结构随机阻尼的变异对结构位移均方差的影响．通过理论和实例的分析，表明建筑结构阻尼的随机性对建筑结构位移响应有影响，应当重视地震作用下建筑结构随机阻尼的研究． |
| 关 键 词： | 结构随机阻尼 摄动法 均方差 白噪声 位移响应 |
| 文章编号： | 0253-374X（2006）11-1436-05 |
| 收稿时间： | 02 24 2005 12:00AM |
| 修稿时间： | 2005-02-24 |
Effect of Structural Random Damping on Structural Displacement Under Excitation of Earthquake |
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| FAN Yaoqing,YANG Zhiyong,LI Qiusheng.Effect of Structural Random Damping on Structural Displacement Under Excitation of Earthquake[J].Journal of Tongji University(Natural Science),2006,34(11):1436-1440. | |
| Authors: | FAN Yaoqing YANG Zhiyong LI Qiusheng |
| Institution: | 1. State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092, China; 2. School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan 430070, China; 3. Department of Building and Construction , City University of Hong Kong, Hong Kong, China |
| Abstract: | Structural damping which is affected by various factors can be regarded as random variable. The model of seismic ground acceleration is assumed as stationary filtered white noise model, and its mean is assumed to be zero. Based on these premises, effect of structural random damping on structural displacement is analyzed. Through theoretic and practical analysis, it proves that construction struc- tural random damping has effect on displacement of construction structure. Some emphasis should be placed on research on construction structural random damping. |
| Keywords: | structural random damping perturbation method mean square deviation white noise displacement response |
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