| 混凝土空心结构内外温差T0的计算 |
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| 引用本文： | 向敏,李玉玉.混凝土空心结构内外温差T0的计算[J].国防交通工程与技术,2014(4):43-45. |
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| 作者姓名： | 向敏 李玉玉 |
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| 作者单位： | 石家庄铁道大学土木工程学院,河北石家庄050043 |
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| 摘 要： | 基于太阳辐射理论及借鉴前人的研究成果,推导出了在一天中任意时刻混凝土空心墩和箱形梁各任意方位角壁板的内外温差T0（即混凝土空心结构温度场温度分布函数Tx=T0·e-ax中的T0）的解析式,通过现场实测数据验证了其计算的可靠性。为混凝土箱形结构的温度应力计算提供有益的借鉴。
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| 关 键 词： | 混凝土空心墩 箱形梁 半经验半理论公式法 太阳辐射理论 |
The Calculation of the Difference in Temperature Inside and Outside the Hollow Concrete Structure |
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| Xiang Min,Li Yuyu.The Calculation of the Difference in Temperature Inside and Outside the Hollow Concrete Structure[J].Traffic Engineering and Technology for National Defence,2014(4):43-45. |
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| Authors: | Xiang Min Li Yuyu |
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| Institution: | (College of Civil Engineering,Shijiazhuang Tiedao University,Shijiazhuang 050043,China) |
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| Abstract: | In the light of the theory of solar radiation and research fruits from previous studies,the temperature difference between internal and external walls of the arbitrary azimuth sidings of the concrete box pier and the box girder at any time of a day,namely,the analytic expression T0is deduced in the paper（T0is the temperature distribution function Tx =T0·e-ax of the temperature field of the concrete hollow structure）,whose reliability is tested with field data.The paper may serve as a useful reference for the calculation of the temperature-difference-caused stress of concrete box structures. |
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| Keywords: | concrete box pier box girder semi-empirical and semi-theoretical formula method the theory of solar radiation |
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