| 变截面悬臂箱梁温差作用下的挠度效应计算 |
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| 引用本文： | 刘海祥,柯敏勇,叶小强,洪晓林.变截面悬臂箱梁温差作用下的挠度效应计算[J].市政技术,2008,26(5). |
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| 作者姓名： | 刘海祥 柯敏勇 叶小强 洪晓林 |
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| 作者单位： | 南京水利科学研究院,江苏,南京,210029 |
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| 摘 要： | 变截面箱梁悬臂施工中,日辐射对悬臂端挠度影响较大,因此梁底线形控制需要考虑日辐射影响.而运用规范中的温差作用效应计算方法,便可推导出挠度效应计算式;用温度传感器采集梁体温度值,可计算梁体挠度和修正立模标高.
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| 关 键 词： | 温差作用 悬臂箱梁 挠度 线形 |
Calculating the Vertical Deflection of A Varying Box-section Beam Because of Temperature Variation |
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| Liu Haixiang,Ke Minyong,Ye Xiaoqiang,Hong Xiaolin.Calculating the Vertical Deflection of A Varying Box-section Beam Because of Temperature Variation[J].Municipal Engineering Technology,2008,26(5). |
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| Authors: | Liu Haixiang Ke Minyong Ye Xiaoqiang Hong Xiaolin |
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| Affiliation: | Nanjing Hydraulic Science Research Institute Nanjing 210029;China |
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| Abstract: | During the building of a box-section beam,the vertical deflection f because of the solar radiation is remarkable.For the good line shape of the bridge,the influence of the solar radiation should be considered.The method to compute the temperature variation influence of the beam in the criterion is adapted to this bridge.The temperature sensors are used to catch the beam temperature,and the f is compute to adjust the mould height. |
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| Keywords: | temperature variation influence cantilever deflection line shape |
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