| 温度荷载对大坝运行期位移及应力 |
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| 引用本文： | 戴跃华,史超,刘先姗.温度荷载对大坝运行期位移及应力[J].中国农村水利水电,2006,0(1):62-65. |
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| 作者姓名： | 戴跃华 史超 刘先姗 |
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| 作者单位： | 水资源与水电工程科学国家重点实验室,武汉大学,武汉,430072 |
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| 摘 要： | 根据隔河岩大坝的水温和气温等监测资料，采用有限元数值计算方法，分析了大坝运行期的月平均、日平均变化温度场，阐述了温度荷载对大坝运行所产生的影响,研究了大坝在温度场影响下的位移、应力变化规律。计算结果表明温度荷载对大坝运行有较大影响，在冬季持续低温时应避免大坝在低水位下运行，夏季持续高温时则应避免在高水位下运行。
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| 关 键 词： | 大坝 温度场 温度荷载 位移 应力 |
| 文章编号： | 1007-2284(2006)01-0062-04 |
| 收稿时间： | 2005-05-31 |
| 修稿时间： | 2005年5月31日 |
The Effects of Temperature Load on the Displacement and Stress of Dam During Operation Period |
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| DAI Yue-hua,SHI Chao,LIU Xian-shan.The Effects of Temperature Load on the Displacement and Stress of Dam During Operation Period[J].China Rural Water and Hydropower,2006,0(1):62-65. |
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| Authors: | DAI Yue-hua SHI Chao LIU Xian-shan |
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| Institution: | State Key Lab of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan 430072 |
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| Abstract: | According to observation data of Geheyan Dam,a study is conducted to analyze the diurnal and monthly variation of temperature field of the dam during operation period by adopting 3D finite-element method.The influence of the temperature load on the displacement and stress of the dam and their change rules are researched.The result shows that: temperature load has a major influence on the dam during operation period;the dam should avoid to operation at low water level during winter season,and to operate at high water level during summer season. |
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| Keywords: | dam temperature field temperature load displacement stress |
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