| 混凝土箱梁温度分布及其影响分析 |
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| 引用本文： | 贾琳,徐剑.混凝土箱梁温度分布及其影响分析[J].现代交通技术,2009,6(3):48-51. |
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| 作者姓名： | 贾琳 徐剑 |
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| 作者单位： | 1. 江苏省交通厅公路管理局,江苏,南京,210004
2. 江苏省交通科学研究院,江苏,南京,210017 |
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| 摘 要： | 结合某连续箱梁桥悬臂施工控制,进行了箱梁混凝土温度分布的现场观测,观测结果表明,太阳辐射作用下,混凝土箱梁沿高度的温度分布为非线性分布。通过对温度实测数据的分析,提出了公路桥梁混凝土箱梁温差计算建议模式,在此基础上,对混凝土箱梁的温度应力、施工过程中的温度变形进行了分析研究。
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| 关 键 词： | 混凝土箱梁 太阳辐射 温度分布 温度应力 变形 |
Analysis of Temperature Distribution and Effect on Concrete Box Girder |
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| Jia Lin,Xu Jian.Analysis of Temperature Distribution and Effect on Concrete Box Girder[J].Modern Transportation Technology,2009,6(3):48-51. |
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| Authors: | Jia Lin Xu Jian |
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| Institution: | 1.Highway Bureau of Jiangsu Communication Depeartment;Nanjing 210004;China;2.Jiangsu Transportation Research Institute;Nanjing 210017;China |
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| Abstract: | During the period of cantilever construction control of a continuous box girder bridge,the temperature field of box girder concrete is observed in site. The observation shows that temperature of concrete box distributed along the height of box-girder non-linearly. According to the analysis of temperature data,a model for temperature calculating is proposed. On this basis,the temperature stress and deformation are analysed. |
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| Keywords: | concrete box girders solar radiation temperature distribution temperature stress deformation |
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