| 混凝土重力坝全坝段三维动力分析 |
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| 引用本文： | 王海波,杨会臣.混凝土重力坝全坝段三维动力分析[J].水力发电学报,2011,30(6). |
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| 作者姓名： | 王海波 杨会臣 |
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| 作者单位： | 中国水利水电科学研究院流域水循环模拟与调控国家重点实验室,北京,100038 |
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| 基金项目： | 水利部公益性行业科研专项(200901054) |
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| 摘 要： | 混凝土重力坝抗震分析多针对典型坝段采用二维模型进行。但对于较窄河谷、地震烈度较高等情况,坝段间的动力相互作用对重力坝的地震影响不可忽视。本文采用全坝段三维有限元模型、计入地基辐射阻尼、坝段间动态接触等影响混凝土重力坝地震响应的关键因素,研究分析高烈度区混凝土重力坝地震响应,并与坝段三维模型、无质量地基模型、无横缝整体坝模型的分析结果进行对比,揭示各种因素对混凝土重力坝地震响应的影响,并提出提高坝体抗震能力的工程措施。
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| 关 键 词： | 水工结构 地震响应 三维动力有限元法 混凝土重力坝 全坝段 |
Seismic analyses of concrete gravity dam with 3D full-dam model |
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| WANG Haibo,YANG Huichen.Seismic analyses of concrete gravity dam with 3D full-dam model[J].Journal of Hydroelectric Engineering,2011,30(6). |
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| Authors: | WANG Haibo YANG Huichen |
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| Affiliation: | WANG Haibo,YANG Huichen(State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin,China Institute of Water Resources and Hydropower Research 100038) |
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| Abstract: | Seismic analyses of concrete gravity dams are usually idealized as two-dimensional structures.For gravity dams built in narrow valleys or on sites of high seismicity,however,interaction between adjacent dam blocks may influence their seismic responses significantly.In this paper,a three-dimensional full-dam FEM model are adopted to analyze the seismic responses of a concrete gravity dam,with consideration of the dynamic interaction between dam-foundation,dam-water,energy radiation and dynamic contact of mon... |
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| Keywords: | hydraulic structure seismic responses 3D dynamic FEM concrete gravity dam full-dam model |
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