大型高墩渡槽横向地震反应分析

Analysis of transverse seismic responses of large scale tall pier aqueduct

将高墩渡槽简化为高墩矩形水箱耦联系统，应用流体线性势流理论及Ｈａｍｉｌｔｏｎ原理导得耦联系统的运动方程．运用Ｌａｐｌａｃｅ变换及其数值逆变换技术分析了耦联系统的地震反应，计算表明。

A tall pier aqueduct is simplified as a coupled system of tall pier and rectangular tank. The motion equations of the coupled system are derived by linear potential flow theory and Hamilton's principle.Laplace transform method and its numerical inversion technique are applied to analyze the transverse earthquake responses of the coupled system.The numerical results show that a great dynamic moment may be produced at pier bottom by seismic action.