作　　者： ; ; ; ;

机构地区： 兰州理工大学土木工程学院防震减灾研究所

出　　处： 《甘肃工业大学学报》 2003年第3期103-106,共4页

摘　　要： 对非比例阻尼体系动力响应的时域一般解答做了简介,分析了非比例阻尼隔震体系在阻尼耦联及频域响应方面的特点,提出了任意多自由度体系时域动力响应的一种工程实用算法.并通过实际隔震工程算例的结果对比,表明本文算法与复振型分解法、双精度Fortran下的Wilson θ法及Matlab下的Simulink这3种方法几种算法的时程曲线完全重合. A brief introduction is made to the general solution of dynamic time domain response of nonproportionally damped seismic isolation system. The characteristics of damping coupling and frequency response of such system is analysed, and a practical engineering method is suggested for calculating dynamic time domain response of nonproportionally damped MDOF isolated structure. Taking a real seismic isolation building as engineering illustration, the seismic response is calculated using the method suggested in this paper, and the results are compared with those from complex mode super position method, Wilsonθ method, and Simulink method in Matlab. The displacement, velocity and acceleration time history response curves obtained from the four different methods agree very well with each other.

关 键 词： 隔震结构 动力时程响应 工程算法 非比例阻尼 阻尼耦联 复振型闭合解 拉普拉斯变换

领　　域： [建筑科学]