【摘要】 土石坝的动力反应特性和抗震性能是水电工程界关注的焦点。设计地震动及其输入方式的合理确定是进行大坝结构动力反应分析和安全性评价的前提,也是影响分析结果可靠性的重要因素。本文对土石坝动力分析地震动输入机制研究中涉及到的地震动参数的确定和地震动输入方式等的研究现状进行了总结、评述,并在此基础上提出了需进一步研究的问题。更多还原

【Abstract】 The dynamic response characteristics and anti-seismic performance of high earth-rock fill dams,are the overriding concern in dam engineering area.Confirmation of the ground motion input is the primary work for dam structure dynamic analysis,and the important influential factor on accuracy of the analysis.In this paper,the main topics related to the study on method of ground motion input in the dynamic analy sis of earth-rock fill dam are discussed,and the study situation of these problems is generalized and re viewed.Some problems which need to be studied further are presented too.更多还原