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金佛山混凝土面板堆石坝地震反应3-D分析

DOI: 10.3969/j.issn.1674-0696.2013.02.24, PP. 285-289

Keywords: 混凝土面板堆石坝,等效线性模型,三维动力分析,永久变形,金佛山水利工程,concretefacedrockfilldam,equivalentlinearmodel,3-Ddynamicanalysis,permanentdeformation,Jinfo

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Abstract:

:?基于等效线性模型,采用三维非线性动力有限元法对拟建金佛山混凝土面板堆石坝进行了地震动力反应分析,重点研究了坝体在地震荷载作用下的加速度反应、动应力反应、地震永久变形的规律和分布。计算结果表明:坝顶附近加速度反应较大,应采取相应的抗震工程措施;坝体动应力反应较小;坝体残余变形不大;大坝整体抗震性能较好,满足给定地震下的抗震安全性要求。

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