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| 滑移隔震结构加速度反应频谱特征分析 | |
| 引用本文： | 李大望,陈立喜,俞晓春,孙敏.滑移隔震结构加速度反应频谱特征分析[J].河南科学,2006,24(3):378-380. |
| 作者姓名： | 李大望 陈立喜 俞晓春 孙敏 |
| 作者单位： | 1. 郑州大学,土木工程学院,郑州,450002 2. 浙江省建设投资集团有限公司,杭州,310012 3. 中原工学院,土木建筑工程系,郑州,450007 |
| 基金项目： | 中国科学院资助项目;河南省高校杰出科研创新人才工程项目 |
| 摘 要： | 以一个多层滑移隔震剪切型结构为例,计算分析了结构地震加速度响应频谱规律.结果表明:隔震结构的加速度响应频谱可呈现多频分布特征并在高频段有较大的加速度反应;除非摩擦系数值较小,隔震结构的加速度响应频谱峰值随摩擦系数单调增加而对上部结构与隔震层侧向刚度比的变化不敏感. |
| 关 键 词： | 滑移隔震结构 加速度响应 傅立叶频谱 |
| 文章编号： | 1004-3918(2006)03-0378-03 |
| 收稿时间： | 2005-12-05 |
| 修稿时间： | 2005年12月5日 |
Analysis for Characteristics of FFT Spectra of Acceleration Responses in Sliding-isolated Structures |
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| LI Da-wang,CHEN Li-xi,YU Xiao-chun,SUN Min.Analysis for Characteristics of FFT Spectra of Acceleration Responses in Sliding-isolated Structures[J].Henan Science,2006,24(3):378-380. | |
| Authors: | LI Da-wang CHEN Li-xi YU Xiao-chun SUN Min |
| Institution: | 1. College of Civil Engineering, Zhengzhou University, Zhengzhou 450002, China; 2. Zhejiang Construction Holding Group Co.,Ltd., Hangzhou 310012, China; 3. Department of Civil and Architecture Engineering, Zhongyuan University of Techology, Zhengzhou 450007, China |
| Abstract: | Based on a multi-story shear-type sliding-isolated structure, the law of FFT spectrum of the acceleration response to seismic ground motions is computationally analyzed. The results proclaim that there can be multi-frequency distribution characteristics in FFT spectrum of the acceleration response; and the peak FFT spectrum increases monotonously with the frictional coefficient but does not obviously vary with the lateral stiffness ratio of the superstructure to isolator, except for smaller values of the frictional coefficient. |
| Keywords: | sliding-isolated structure acceleration response FFT spectrum |
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