[1]李云璋,姚谦峰,黄炜.基础隔震密肋复合墙结构的地震随机响应分析[J].世界地震工程,2010,(02):097-101.
 LI Yunzhang,YAO Qianfeng,HUANG Wei.Analysis of random earthquake responses of multi-ribbed composite structure with base isolation[J].,2010,(02):097-101.
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基础隔震密肋复合墙结构的地震随机响应分析
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《世界地震工程》[ISSN:/CN:]

卷:
期数:
2010年02期
页码:
097-101
栏目:
出版日期:
2010-02-01

文章信息/Info

Title:
Analysis of random earthquake responses of multi-ribbed composite structure with base isolation
作者:
李云璋1 姚谦峰2 黄炜2
西安建筑科技大学土木工程学院, 陕西 西安 710055
Author(s):
LI Yunzhang1 YAO Qianfeng2 HUANG Wei2
College of Civil Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, China
关键词:
密肋复合墙结构基础隔震状态空间法随机反应
Keywords:
large bay multi-ribbed slab frame structurebase isolationthe state space methodrandom response
分类号:
TU202;P315.966
摘要:
在给出密肋复合墙结构弹性刚度的基础上,建立了基础隔震结构的运动方程,利用随机振动的理论,将地震波过滤白噪声地震动模型输入,运用状态空间法,得出了层间最大位移的概率统计特性,从而建立了其均值和均方差的计算公式。通过算例分析表明,增大上部结构自振频率与隔震结构的频率的比值可以增大隔震层最大位移的反应,提高隔震层的阻尼比可以降低隔震层最大位移的反应;对其参数进行合理的配置,可使该结构体系隔震效果达到最优。
Abstract:
Based on the given equivalent elastic stiffness of multi-ribbed composite structure,the motion equations of a base isolation system are obtained.In accordance with the random vibration theory,the ground acceleration is described through the power spectral density function.Using the state space method,the statistical probabilistic characteristics of the maximum displacement response of the large bay multi-ribbed slab frame structure with base isolation are analyzed,and the calculating formula of displacement mean value and standard variation value are derived.The results of a calculation example indicate that the maximum displacement value of the isolation layer will increase with the increasing,the ratio of the first frequancy of upper structure to the frequency of isolation structure,and the maximum displacement value of the isolation layer will reduce as the damping ratio of the isolation layer increases.By rationally selecting parameters,the isolation effectiveness of the structure can be optimized.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2008-12-2;改回日期:2008-12-16。
基金项目:国家自然科学基金项目(50578011)
作者简介:姚谦峰(1956- ),男,教授,博士生导师,主要从事结构工程研究.E-mail:yaoqf808@163.com
更新日期/Last Update: 1900-01-01