【摘要】 利用变换坐标系法推导坝库系统流固耦合矩阵,采用附加质量法分析了坝水相互作用。对地震作用下水体对坝体的影响进行了研究。结果表明,水体在地震初期对坝体的运动有一定阻尼作用,对提高坝体的抗震性能有益,但延长了坝体振动时间,并对坝体后期运动有一定作用。更多还原

【Abstract】 The method of changing coordinate is used to deduce the fluid-solid interaction matrix of dam-resefvoir System and analysis the dam-reservoir interaction according to additional mass method.The influence of water on the dam under the earthquake is studied.Finally,the water can reduce the movement of the dam,which is benefit for improving the capability of the dam to resist the quake,but it prolongs the time of the vibration of dam.更多还原