| 洺河渡槽施工期温度应力仿真研究 |
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| 作者姓名： | 刘爱军 秦忠国 张子明 彭宣茂 |
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| 作者单位： | 1. 武汉大学,武汉,430072
2. 河海大学土木工程学院,南京,210098 |
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| 摘 要： | 用化学反应速率描述温度对混凝土绝热温升的影响,求解基于等效时间的非线性热传导方程,对南水北调工程 洺河渡槽施工期温度场和徐变应力场进行了仿真计算。研究表明,对于夏季和冬季浇筑的混凝土,采用基于等效时间的混凝土绝热温升理论和传统理论的计算结果有较大差异。
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| 关 键 词： | 化学反应速率 绝热温升 等效时间 非线性热传导方程 |
| 文章编号： | 1672-1683(2006)02-0015-05 |
| 修稿时间： | 2006年3月2日 |
Simulation Study of Temperature Stresses in Construction in Minghe River Aqueduct Project |
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| Authors: | LIU Ai-jun QIN Zhong-guo ZHANG Zi-ming PENG Xuan-mao |
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| Abstract: | Hydration rate is adopted to describe the combined effect on adiabatic temperature rise. A new non-linear heat conduction equation based on equivalent time is applied to solve the temperature field and stress field of Ming River Aqueduct Project. The study shows there is big difference between the results computed by use of the heat conduction equation based on equivalent time and traditional heat conduction equation during winter and summer construction. |
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| Keywords: | hydration rate adiabatic rise equivalent time non-linear heat conduction equation Ming River Aqueduct Project |
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