摘要
本文研究了结构-地基相互作用对重力坝地震反应的影响,给出了重力坝在层状粘弹性半无限地基上的频响函数以及各种典型地震波作用下坝上加速度的分布规律。同时,为了比较,还给出了无质量弹性地基上以及刚性地基上重力坝在上述相同地震被作用下加速度的分布规律。计算结果表明,计入相互作用的影响以后,作用在重力坝上的地震惯性力将比刚性地基的情况有所减小。
The soil-structure interaction effect on the earthquake response of concrete gravity dams is studied. The complex frequency response function of gravity clams resting on multi-layered visco-elastic halfspace is developed and the distribution of earthquake inertia forces acting on the dam body subjected to several typical earthquake waves is examined. Fox comparison, the computational results of gravity dams resting on elastic massless foundation and rigid foundation under the same earthquake shocks are also introduced. Based on the numerical computation carried out in this paper, it is found that the earthquake inertia forces acting on the gravity dams including soil-structure interaction effect are reduceed as compared with those of gravity dams resting on rigid foundation.
出处
《地震工程与工程振动》
CSCD
北大核心
1991年第4期65-76,共12页
Earthquake Engineering and Engineering Dynamics
基金
高等学校博士学科点专项科研基金
