| 加速度峰值对高面板堆石坝面板动应力的影响研究 |
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| 引用本文： | 邓海峰.加速度峰值对高面板堆石坝面板动应力的影响研究[J].水利科技与经济,2011,17(9):50-52. |
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| 作者姓名： | 邓海峰 |
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| 作者单位： | 中铁十二局集团第二工程有限公司,太原,030032 |
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| 摘 要： | 采用三维非线性有限元方法,分析了高面板堆石坝的混凝土面板在不同输入加速度峰值作用下的动力反应。计算结果表明,面板的顺坡向峰值动应力发生在0.8倍坝高附近,坝轴向峰值动应力发生在坝顶中间部位的面板区域;面板的峰值动应力随着输入加速度的增大呈非线性增大。面板中上部会出现较大的动应力,可能会使面板发生顺坡向和坝轴向的挤压或拉裂破坏,因此建议该区域加强配筋。
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| 关 键 词： | 高面板堆石坝 动应力 非线性有限元 混凝土面板 加速度峰值 |
Research on the Influence of Peak Acceleration for Concrete-face Dynamic Stress of High Concrete Faced Rockfill Dam |
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| DENG Hai-feng.Research on the Influence of Peak Acceleration for Concrete-face Dynamic Stress of High Concrete Faced Rockfill Dam[J].Water Conservancy Science and Technology and Economy,2011,17(9):50-52. |
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| Authors: | DENG Hai-feng |
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| Affiliation: | DENG Hai-feng(The 2nd Engineering Co.,Ltd.of the 12th Bureau Group of China Railway,Taiyuan 030032,China) |
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| Abstract: | Three-dimensional nonlinear FEM is adopted to analysis dynamic response for concrete-face of high CFRD in the different input peak acceleration.The caclulation results show that alone slpoe peak dynamic stress distributed in concrete-face at 0.8 times height of dam,and axial peak dynamic stress distributed in the middle of the crest.Peak dynamic stress of concrete-face is nonlinear advanced with the growth of input acceleration.Stronger dynamic stress appears in the upper part of the concrete-face where may... |
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| Keywords: | high concrete faced rockfill dam dynamic stress nonlinear FEM concrete-face peak acceleration |
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