| 拓宽工程新建桥梁上部结构混凝土收缩对结构受力影响分析 |
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| 引用本文： | 张齐坤,;杨建兵,;张广寅.拓宽工程新建桥梁上部结构混凝土收缩对结构受力影响分析[J].石家庄铁路工程职业技术学院学报,2014(2):58-62. |
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| 作者姓名： | 张齐坤 ;杨建兵 ;张广寅 |
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| 作者单位： | [1]天津铁道职业技术学院,天津300240; [2]天津市东方勘测有限公司,天津300163; [3]天津市市政工程研究院,天津300074 |
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| 摘 要： | 就某高速公路拓宽桥梁新建上部结构混凝土收缩对结构受力的影响进行分析。介绍混凝土收缩的机理、主要原因和影响因素,结合工程实例,建立有限元模型,计算分析混凝土收缩对T形梁结构受力的影响,为拓宽桥梁的优化设计和施工提供理论依据。
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| 关 键 词： | 高速公路 拓宽 桥梁 混凝土收缩 T形梁 结构受力 |
Analysis of the Influence of the Shrinkage of Concrete on the Structure Stress of the Superstructure of a Newly-built Bridge in a Widening Project |
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| Institution: | ZHANG Qi-kun,YANG Jian-bing, ZHANG Guang-yin, (Tianjin Railway Technical and Vocational College1 Tianjin 300240 Tianjin Dong Fang Survey Co., 300163 Tianjin Municipal Engineering Design and Research Institute3＇ Tianjin 300074 Ltd. 2, Tianjin China) |
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| Abstract: | The influence of the shrinkage of concrete on the structure stress of the newly-built superstructure of a widened bridge on a high way is analyzed. First, the mechanism, main causes and influential factors of concrete shrinkage are introduced. Then the influence of concrete shrinkage on the structure stress of tee beam is analyzed combining with a project case and finite element model, which will provide a theoretical foundation for the optimal design and construction of widened bridges. |
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| Keywords: | high way widened bridge concrete shrinkage tee beam structure stress |
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