摘要
通过直接积分和模态叠加两种方法研究了带TMD结构均方非平稳随机地震响应的数值计算方法。应用非平稳随机响应问题的统一解法理论,并引入常用的微分方程数值积分Runge Kutta方法,解决了复杂的非平稳随机响应问题,计算实例说明了该方法的有效性。探讨了设计非平稳地震激励TMD结构参数的方法。
The numerical calculation methods for mean square evolutionary random seismic responses of building structures with TMD are investigated by direct integration and modal analysis.By introducing a unified approach to evolutionary random response problem and Runge-Kutta integration method,this complicated problem can be solved simply.The effectiveness and accuracy of this method are illustrated by a numerical example and the parameters of TMD is discussed.The method can be applied effectivelly for stationary random responses or nonstationary random responses of building structures in engineering problems.
出处
《建筑结构》
CSCD
北大核心
2005年第5期21-23,27,共4页
Building Structure
基金
国家自然科学基金资助项目(50075068)。
