| 墩台大体积混凝土温度应力分析与裂缝控制探讨 |
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| 引用本文： | 李仲勤.墩台大体积混凝土温度应力分析与裂缝控制探讨[J].城市道桥与防洪,2009(3). |
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| 作者姓名： | 李仲勤 |
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| 作者单位： | 兰州交通大学土木工程学院,甘肃兰州,730070 |
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| 摘 要： | 该文通过对重力式墩台裂缝成因的分析,指出温度裂缝是重力式墩台裂缝控制的关键,分析了温度裂缝的两种不同类型及受力机理,推导了两种不同类型温度应力的理论计算公式,并给出了施工现场温度控制与防裂的一些措施。
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| 关 键 词： | 重力式墩台 水化热 温度应力 裂缝控制 |
Analysis on Temperature Stress and Discussion on Crack Control of Massive Concrete for Pier and Abutment |
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| Li Zhongqin.Analysis on Temperature Stress and Discussion on Crack Control of Massive Concrete for Pier and Abutment[J].Urban Roads Bridges & Flood Control,2009(3). |
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| Authors: | Li Zhongqin |
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| Abstract: | By analyzing the cause of gravity pier and abutment crack, the article points out that the temperature crack is the key of controlling the crack of gravity pier and abutment, analyzes two different types of temperature crack and their force mechanism, deduces two different theoretical calculating formulas of temperature stress, and gives some measures to control the temperature of the construction field and to prevent the cracks. |
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| Keywords: | gravity pier and abutment hydration heat temperature stress crack control |
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