| 水泥混凝土路面板温度翘曲应力 |
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| 引用本文： | 谈至明,周玉民,刘伯莹.水泥混凝土路面板温度翘曲应力[J].公路,2004(11):63-67. |
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| 作者姓名： | 谈至明 周玉民 刘伯莹 |
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| 作者单位： | 1. 同济大学教育部道路和交通工程重点实验室,上海市,200092
2. 中交公路规划设计院,北京市,100010 |
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| 摘 要： | 分析了水泥混凝土路面路面板翘曲变形处理为2组垂直交叉地基梁翘曲变形叠合的威氏方法的适用性和精度，总结了半无限地基和半刚性基层上路面板的温度翘曲应力变化规律，通过引入等效梁长和当量相对梁长2个慨念，提出了半无限地基板任一点、计入半刚性基层超宽影响的梁中点的翘曲应力公式。
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| 关 键 词： | 水泥混凝土路面 温度翘曲应力 路面板翘曲 文克勒地基 半刚性基层 |
| 文章编号： | 0451-0712(2004)11-0063-05 |
Calculation of Thermal Warping Stresses in Cement Concrete Pavement Slabs |
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| TAN Zhi ming ,ZHOU Yu min ,LIU Bo ying.Calculation of Thermal Warping Stresses in Cement Concrete Pavement Slabs[J].Highway,2004(11):63-67. |
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| Authors: | TAN Zhi ming ZHOU Yu min LIU Bo ying |
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| Institution: | TAN Zhi ming 1,ZHOU Yu min 1,LIU Bo ying 2 |
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| Abstract: | The applicability and accuracy of Westergaard formula, which based upon the assumption that the curling deformation of cement concrete pavement slabs can be regarded as the superposition of the deformations of two foundation beams interperpendicular to each other respectively, are analyzed, and the rules of thermal warping stresses in pavement slabs on half infinite space foundation or semi rigid base foundation are summarized. By adopting two concepts of equivalent length and equivalent relative length of beam, the calculating formulas are provided of thermal warping stresses on any point in the pavement slabs on half infinite space foundation and also in the middle of foundation beam concerning the effect of ultra wide base |
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| Keywords: | cement concrete pavement thermal curling deformation Winkler foundation half infinite space foundation semi rigid base foundation |
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