摘要
为研究多自由度基础隔震结构的随机地震响应问题,用多个振型将上部结构展开,针对所得方程的非经典阻尼、非对称质量和非对称刚度情况,采用复模态法进行解耦,获得了以多振型表示的结构地震响应的计算表达式。算例结果表明多自由度基础隔震结构减震效果显著。
In order to study the random earthquake response of multi-degree structure with base isolation, the upper structure is unfolded through multl-mode. According to the situation that the damping is non-classlcal damping and the structure is non-symmetry, the complex model method is used to disconnect the equations, and the precise solution of earthquake response expressed by multi-mode is obtained. The example shows that the multidegree of freedom structure with base isolation can reduce earthquake response obviously.
出处
《广西工学院学报》
CAS
2008年第2期1-4,9,共5页
Journal of Guangxi University of Technology
基金
广西高校百名中青年学科带头人资助计划(RC20060814017)
广西自然科学基金(0481001)
广西科学基金(0575021)
广西教育厅科研项目(0508052)联合资助
关键词
基础隔震
随机地震响应
复模态
base isolation
random earthquake response
complex model
