| 混凝土厚墙结构温度自约束应力的计算 |
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| 引用本文： | 乔润德,王超,王春,黄曦.混凝土厚墙结构温度自约束应力的计算[J].合肥工业大学学报(自然科学版),2001,24(3):358-361. |
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| 作者姓名： | 乔润德 王超 王春 黄曦 |
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| 作者单位： | 合肥工业大学土木建筑工程学院, |
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| 摘 要： | 混凝土厚墙结构是大体积混凝土结构的一种 ,此类结构要考虑水泥的水化热作用。采用有限差分法计算出水化热最大内外温差 ,混凝土收缩用等效温差的方法进行考虑。用等效荷载法解出温度自约束应力 ,以此验算混凝土结构表面是否开裂 ,从而指导施工。
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| 关 键 词： | 厚墙结构 温度应力 有限差分法 水化热反应 热传导 |
| 文章编号： | 1003-5060(2001)03-0358-04 |
| 修稿时间： | 2000年11月20 |
Study of the thermal self-restraining stress of structure of concrete thick wall |
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| QIAO Run de,WANG Chao,WANG Chun,HUANG Xi.Study of the thermal self-restraining stress of structure of concrete thick wall[J].Journal of Hefei University of Technology(Natural Science),2001,24(3):358-361. |
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| Authors: | QIAO Run de WANG Chao WANG Chun HUANG Xi |
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| Abstract: | Concrete thick wall is a sort of bulk concrete structure,and designing of this kind of structure must take into account the hydration reaction. The finite difference method is adopted to calculate the maximum difference of temperature between the inside and outside of the wall, and the contracting of concrete is considered by means of equivalent difference of temperature. The thermal self restraining stress is calculated by the method of equivalent load in order to check whether the surface of the concrete structure will crack or not, then proper suggestions may be made on the construction. |
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| Keywords: | thick wall structure thermal stress finite difference method hydration reaction heat conduction |
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