高层隔震结构实空间解耦及地震作用取值分析

发布时间：2018-05-16 02:04

本文选题：高层隔震结构 + 非经典阻尼　；参考：《振动与冲击》2014年15期

【摘要】：对高层隔震结构响应实空间解耦及地震作用取值进行了系统研究。首先运用复模态法和拉氏变换,建立非对称非经典结构响应的实空间精确解耦法,将高层隔震结构位移响应方差在实空间上精确分解为系列标准振子位移与速度响应方差的线性组合,获得结构相关组合系数的精确解;然后利用系列标准振子最大响应与反应谱的对应关系,给出了基于最大位移响应的地震作用新定义,建立了高层隔震结构基于反应谱的最大位移响应及其等效静态地震作用取值的完备解析解法,并给出了算例,验证了所提出方法的正确性,该方法适用于一般非对称非经典结构响应的实空间精确解耦及其基于反应谱的地震作用取值分析。
[Abstract]:The real-space decoupling and seismic action values of high-rise isolated structures are systematically studied. Firstly, using complex mode method and Laplace transform, the real space exact decoupling method of asymmetric nonclassical structure response is established. The displacement response variance of tall isolated structures is decomposed into a linear combination of displacement and velocity response variance of a series of standard oscillators in real space, and the exact solution of structural correlation combination coefficient is obtained. Then a new definition of seismic action based on the maximum displacement response is given by using the corresponding relation between the maximum response and the response spectrum of a series of standard oscillators. A complete analytical solution for the maximum displacement response of tall isolated structures based on response spectrum and the equivalent static seismic action is established. An example is given to verify the correctness of the proposed method. This method is suitable for exact decoupling in real space and seismic response analysis based on response spectrum of general asymmetric nonclassical structures.
【作者单位】：广西科技大学土建学院;广西大学土建学院;
【基金】：广西高校百名中青年学科带头人资助计划(RC20060814017) 广西研究生教育创新计划资助项目(2012105940814M05)
【分类号】：TU973;TU352.12

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