| 横缝设置对鱼洞峡拱坝温度应力场影响的有限元分析 |
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| 引用本文： | 宿生,何蕴龙,付作光.横缝设置对鱼洞峡拱坝温度应力场影响的有限元分析[J].中国农村水利水电,2011(9). |
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| 作者姓名： | 宿生 何蕴龙 付作光 |
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| 作者单位： | 武汉大学水资源与水电工程科学国家重点实验室,武汉,430072 |
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| 摘 要： | 采用基于瞬态温度场理论的有限元法,综合考虑混凝土绝热温升、浇筑进度、气温（水温）变化等因素,对鱼洞峡拱坝进行了全过程的温度场仿真分析。并根据温度场分析成果,对拱坝进行了整体及分缝状态下的温度应力场仿真分析。计算结果表明,设置横缝可显著削减坝体拉应力峰值,对坝体的防裂安全能起到积极作用。
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| 关 键 词： | 瞬态温度场 横缝 温度应力场 鱼洞峡拱坝 |
FEM Analysis of Influence of Contraction Joints on Thermal Stress Filed for the Yudongxia Arch Dam |
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| SU Sheng,HE Yun-long,FU Zuo-guang.FEM Analysis of Influence of Contraction Joints on Thermal Stress Filed for the Yudongxia Arch Dam[J].China Rural Water and Hydropower,2011(9). |
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| Authors: | SU Sheng HE Yun-long FU Zuo-guang |
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| Institution: | SU Sheng,HE Yun-long,FU Zuo-guang(State Key Laboratory of Water Resources and Hydropower Engineering Science,Wuhan University,Wuhan 430072,China) |
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| Abstract: | FEM based on the transient temperature field method is used to analyze the temperature field of the Yudongxia Arch Dam during the construction and operation periods,considering factors such as cement hydration,construction schedule,air temperature and water temperature.According to the result of the temperature field,thermal stress conditions of the dam with and without contraction joints are studied.The result shows that by placing necessary contraction joints,tension stress of the dam is greatly released,... |
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| Keywords: | transient temperature field contraction joints thermal stress field Yudongxia Arch Dam |
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