| 抽水蓄能电站蜗壳结构非线性有限元仿真分析 |
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| 引用本文： | 徐伟,陈婧,马震岳. 抽水蓄能电站蜗壳结构非线性有限元仿真分析[J]. 人民黄河, 2012, 0(1): 105-107 |
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| 作者姓名： | 徐伟 陈婧 马震岳 |
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| 作者单位： | 大连理工大学建设工程学部水利工程学院;沈阳农业大学水利学院 |
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| 基金项目： | 国家自然科学基金资助项目(51079020);辽宁省教育厅重点实验室科研项目(2008S045) |
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| 摘 要： | 采用ANSYS有限元非线性仿真技术,对某抽水蓄能电站保压蜗壳及外围混凝土结构进行受力计算分析,确定蜗壳外围环向和水流向配筋方案,计算配筋混凝土裂缝开展宽度及开裂部位钢筋应力。结果表明,蜗壳钢衬应力水平达到钢材屈服强度的45%～50%,蜗壳进口至下游墙侧蜗壳外围混凝土顶部及底部开裂明显,其他部位开裂不明显,蜗壳整体刚度满足规范规定。
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| 关 键 词： | 非线性仿真 蜗壳 混凝土结构 裂缝验算 |
Nonlinear FEM Analysis on Spiral Case Structure of Pumped Storage Hydropower Station |
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| XU Wei,CHEN Jing,MA Zhen-yue. Nonlinear FEM Analysis on Spiral Case Structure of Pumped Storage Hydropower Station[J]. Yellow River, 2012, 0(1): 105-107 |
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| Authors: | XU Wei CHEN Jing MA Zhen-yue |
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| Affiliation: | 1(1.School of Hydraulic Engineering,Faculty of Infrastructure Engineering,Dalian University of Technology,Dalian 116024,China; 2.College of Water Resource,Shenyang Agricultural University,Shenyang 110866,China) |
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| Abstract: | Through nonlinear FEM simulation with ANSYS software,calculations on keeping constant internal pressure spiral case and surrounding concrete were acted,reinforcement ratio in circumferential direction and flowing direction were decided,and also the width of concrete crack including reinforcement stress nearby the crack was computed.Based on the comparing analysis with three working conditions,some conclusions are drawn that the stress of spiral case is 45%-50% of its yield strength,concrete crack is obvious near the top and bottom of the spiral case from the inlet to downstream wall but little on other places,the integral rigidity of the structure is satisfied for operation. |
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| Keywords: | nonlinear simulation spiral case concrete structure crack calculation |
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