摘要
本文运用配点法(Collocation Method)求解U形与梯形河谷的地震动水压力。计算中考虑了库水压缩性及库底淤积条件的影响,得到了一种含待定系数的级数形式的解。然后利用坝面加速度响应的边界条件求级数的各阶系数,进而可求解坝面的动水压力。这一方法具有明显的经济性与合理的精确度。与流体有限元方法相比较,可以节省大约三分之二的计算时间。在河谷形态较规则时,这一方法具有很好的工程应用前景。
In this paper, a collocation method of the dynamic water pressure calculation for arch dams has been developed and the special attentions are given to U-form valley and trapezoidal valley. The main procedures of the proposed method are described as follows.1. Find out the analytical series solution which satisfies all the boundary conditions except dam surface.2. Satisfy the dam surface condition to determine the coefficients of series solution.The final numerical solution shows that the method can give good accuracy and the data preparation work is much simplified.
出处
《地震工程与工程振动》
CSCD
北大核心
1990年第4期73-82,共10页
Earthquake Engineering and Engineering Dynamics
