混凝土面板堆石坝抗震性能有限元数值模拟分析
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摘要
采用有限元数值模拟方法,分析了蒲石河抽水蓄能电站面板堆石坝的动力响应特性,计算了堆石坝在地震荷载作用下的模态和振型。基于Westergaard的经典公式,模拟了水库上游水位附加质量对大坝抗震性能的影响。有限元数值计算的堆石坝固有频率和振型为其抗震设计和分析提供理论依据。
Dynamical responses of concrete face rockfill dam under the seismic loading are investigated by using finite element method.The modal frequency and shapes of the dam are computed.Based on the classical Westergaard formulas,the influences of added water mass on the upstream of dam on the modal frequency and shapes is simulated numerically.The computing results with finite element method can supply the theoretical foundations for the design of earthquake-resistance of concrete face rockfill dam.
Dynamical responses of concrete face rockfill dam under the seismic loading are investigated by using finite element method.The modal frequency and shapes of the dam are computed.Based on the classical Westergaard formulas,the influences of added water mass on the upstream of dam on the modal frequency and shapes is simulated numerically.The computing results with finite element method can supply the theoretical foundations for the design of earthquake-resistance of concrete face rockfill dam.
引文
1沈慧,迟世春,贾宇峰.覆盖层地基上250m级土石坝抗震分析.河海大学学报,2007;35(3):271—276
2刘小生,王钟宁,赵剑明.面板堆石坝振动模型试验及动力分析研究.水利学报,2002;(2):29—36
3李文斌.石砭峪堆石坝沥青混凝土斜墙地震动力反应分析.水利与建筑工程学报,2007;5(4):55—58
4程冬,李守巨.地震作用下丰满重力坝的塑性损伤.岩土力学,2007;28(增):792—795
5Lee Jeeho,Fenves G L.Plastic-damage model for cyclic loading of concrete structures.Journal of Engineering Mechanics,1998;124(8):892—900
6Lee Jeeho,Fenves G L.A plastic-damage concrete model for earth-quake analysis of dams.Earthquake Engineering and Structural Dy-namics,1998;27(9):937—956
7林皋,陈建云,肖诗云.混凝土的动力特性与拱坝的非线性地震响应.水利学报,2003;(6):30—36
8Hac1efendiolu K,Basaga H B,Bayraktar A.Nonlinear analysis of rock-fill dams to non-stationary excitation by the stochastic Wilson-(method.Applied Mathematics and Computation,2007;194:333-345
9Singh R,Roy D,Jain S K.Analysis of earth dams affected by the2001Bhuj Earthquake,Engineering Geology,2005;80:282—291
10Akkose M,Adanur S,Bayraktar A.Stochastic seismic response of Keban dam by the finite element method.Applied Mathematics and Computation,2007;184:704—714
11赵剑明,常亚屏,陈宁.龙首二级面板堆石坝三维真非线性地震反应分析和评价.岩土力学,2004;25(增):388—394
12Westergaard H W.Water pressures on dams during earthquakes.Transactions ASCE,1933;98:418—472
13李瓒,陈兴华,郑建波,等.混凝土拱坝设计.北京:中国电力出版社,2000
14徐汉忠,吴旭光,马贞信.计算动水压力附加质量的韦氏公式的扩充.河海大学学报,1997;25(5):120—122
2刘小生,王钟宁,赵剑明.面板堆石坝振动模型试验及动力分析研究.水利学报,2002;(2):29—36
3李文斌.石砭峪堆石坝沥青混凝土斜墙地震动力反应分析.水利与建筑工程学报,2007;5(4):55—58
4程冬,李守巨.地震作用下丰满重力坝的塑性损伤.岩土力学,2007;28(增):792—795
5Lee Jeeho,Fenves G L.Plastic-damage model for cyclic loading of concrete structures.Journal of Engineering Mechanics,1998;124(8):892—900
6Lee Jeeho,Fenves G L.A plastic-damage concrete model for earth-quake analysis of dams.Earthquake Engineering and Structural Dy-namics,1998;27(9):937—956
7林皋,陈建云,肖诗云.混凝土的动力特性与拱坝的非线性地震响应.水利学报,2003;(6):30—36
8Hac1efendiolu K,Basaga H B,Bayraktar A.Nonlinear analysis of rock-fill dams to non-stationary excitation by the stochastic Wilson-(method.Applied Mathematics and Computation,2007;194:333-345
9Singh R,Roy D,Jain S K.Analysis of earth dams affected by the2001Bhuj Earthquake,Engineering Geology,2005;80:282—291
10Akkose M,Adanur S,Bayraktar A.Stochastic seismic response of Keban dam by the finite element method.Applied Mathematics and Computation,2007;184:704—714
11赵剑明,常亚屏,陈宁.龙首二级面板堆石坝三维真非线性地震反应分析和评价.岩土力学,2004;25(增):388—394
12Westergaard H W.Water pressures on dams during earthquakes.Transactions ASCE,1933;98:418—472
13李瓒,陈兴华,郑建波,等.混凝土拱坝设计.北京:中国电力出版社,2000
14徐汉忠,吴旭光,马贞信.计算动水压力附加质量的韦氏公式的扩充.河海大学学报,1997;25(5):120—122
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