高层建筑随机地震反应分析

Random Seismic Response Analysis for Tall Buildings

是文献工作的继续,采用地震动转动功率谱的数学模型,探讨了地震动转动分量对高层建筑随机反应的影响。建立了在水平与摇摆地震动联合作用下可简化为悬臂杆件的高层建筑的振动方程,给出了计算结构均方反应及可靠度的公式。最后,进行了实际结构的数值计算。

Using the mathematical model of rotational power spectrum proposed by the authors, this paper investigates the effects of rotational components of ground motions on random response of tall buildings. The paper establishes the tall building vibbration equation which is under the action of horizontal and rocking ground motions. The paper also presents the formulas for calculating the mean—square response and dynamic reliability of structures. Finally, it makes a numerical calculation to an actual structure.