【作者】 郝明辉； 张艳红；

【Author】 HAO Ming-hui 1 , ZHANG Yan-hong 2 (1. China Earthquake Disaster Prevention Centre, Beijing 100029, China; 2. China Institute of Water Resources And Hydropower Research, Beijing 100048, China)

【机构】 中国地震灾害防御中心； 中国水利水电科学研究院；

【摘要】 大量研究表明横缝开合对坝体地震响应的影响不可忽视。计入横缝影响后,高拱坝地震反应分析已从传统的线弹性分析阶段发展到复杂的三维接触非线性动力分析阶段。另外,拱坝地震响应还同时受到坝体、库水动力相互作用,地基辐射阻尼效应,坝体混凝土材料非线性等综合因素的影响。为了客观而真实地反映大坝在地震中的表现,深入研究横缝开合对坝体地震响应的影响,必须同时考虑上述诸影响因素,本文结合白鹤滩高拱坝进行这方面的研究。更多还原

【Abstract】 A large number of studies have shown that the transverse joint opening and closing of the seismic response of dam can’t be ignored, and included in the transverse joint impact of high arch dam seismic response analysis from traditional linear elastic analysis phase of the development of the nonlinear dynamic analysis phase of the complex three-dimensional contact. Seismic Response of dam - foundation system is influenced at the same time by the dam、 reservoir water dynamic interaction, foundation radiation damping effect ,concrete material nonlinearity, in order to get objective and true reflection of the dam in the earthquake, the influence of transverse joint opening and closing on seismic response of dam - foundation system has to be studied deeply considering the above influencing factors, we do work in this area with Baihetan high arch dam.更多还原