| 寒冷地区某碾压混凝土重力坝温控计算分析 |
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| 引用本文： | 李永刚,李守义.寒冷地区某碾压混凝土重力坝温控计算分析[J].西北农林科技大学学报(社会科学版),2005,33(8):153-156. |
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| 作者姓名： | 李永刚 李守义 |
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| 作者单位： | 西安理工大学,水利水电学院,陕西,西安,710048 |
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| 摘 要： | 结合寒冷地区某碾压混凝土坝工程的实际情况,采用三维有限元浮动网格法对该坝施工期和运行期温度场、温度徐变应力场进行了仿真计算。计算完全按照实际施工过程进行模拟,全面考虑了坝体薄层浇筑过程和浇筑温度及各种外荷载。对比分析了寒潮对坝体应力的影响,为碾压混凝土重力坝的设计和施工中的温控提供了参考依据。
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| 关 键 词： | 碾压混凝土重力坝 温度应力 浮动网格法 仿真分析 寒潮 |
| 文章编号： | 1671-9387（2005）08-0153-04 |
| 收稿时间： | 2004-12-06 |
| 修稿时间： | 2004年12月6日 |
Simulation analysis of temperature control of RCC gravity dam |
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| LI Yong-gang,LI Shou-yi.Simulation analysis of temperature control of RCC gravity dam[J].Journal of Northwest Sci-Tech Univ of Agr and,2005,33(8):153-156. |
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| Authors: | LI Yong-gang LI Shou-yi |
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| Institution: | (Xi’an University of Technology,Xi’an,Shaanxi 710048,China) |
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| Abstract: | In this paper,three-dimensional finite element relocating mesh method is used to carry out the simulation of the temperature field and thermal stress field of the RCC dam during construction and operation period. The .impact on thermal stress of concrete calorific and mechanical parameters varying with time,the process of dam body pouring by layers,the gravity of the dam and the water pressure have all been considered in calculation. In addition,thermal stress field was analyzed when cold wave occurs. The reliable basis for the dam design and for taking corresponding temperature control measures during the dam construction is provided. |
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| Keywords: | RCC grarit y dam thermal stress relocating mesh method simulation analysis cold wave |
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