| 曲梁在预应力径向分力作用下的受力分析 |
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| 引用本文： | 向中富,卞明智,梁甜甜,朱慈祥.曲梁在预应力径向分力作用下的受力分析[J].重庆交通大学学报(自然科学版),2008,27(6):1009-1013. |
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| 作者姓名： | 向中富 卞明智 梁甜甜 朱慈祥 |
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| 作者单位： | 重庆交通大学,土木建筑学院,重庆,400074;武汉二航路桥特种工程有限责任公司,湖北,武汉,430071 |
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| 摘 要： | 通过理论分析与模型试验研究,比较了曲梁在径向力作用下的不同受力模型;分析了径向拉应力在曲线箱梁腹板中的分布以及防崩钢筋面积和预应力筋保护层厚度的影响;讨论了径向拉应力对裂缝的影响及预防措施,最后提出了防崩钢筋面积与径向拉应力的拟合关系式,可供曲线箱梁的设计及施工参考。
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| 关 键 词： | 曲线箱梁 应力分布 崩裂 防崩钢筋 保护层厚度 |
Analysis of Curved Box Girder's Force Condition under Prestressed Radical Force |
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| XIANG Zhong-fu,BIAN Ming-zhi,LIANG Tian-tian,ZHU Ci-xiang.Analysis of Curved Box Girder's Force Condition under Prestressed Radical Force[J].Journal of Chongqing Jiaotong University,2008,27(6):1009-1013. |
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| Authors: | XIANG Zhong-fu BIAN Ming-zhi LIANG Tian-tian ZHU Ci-xiang |
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| Institution: | XIANG Zhong-fu1,BIAN Ming-zhi1,LIANG Tian-tian1,ZHU Ci-xiang2(1.School of Civil Engineering & Architecture,Chongqing Jiaotong University,Chongqing 400074,China,2.Wuhan Second Navigational Road & Bridge Special Engineering Co.Ltd,Hubei Wuhan 430071,China) |
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| Abstract: | Through theoretical analysis and model pilot study,the different mechanical models of the curved beam under the radical force are compared.The distribution of the radical force in the curved box girder and the influence of anti-collapse of steel area and the prestressed wire's protective layer thickness are analyzed.Besides,the radical force's impact on the crack and the responsive measures are also discussed.The fitting formula of radical force and anti-collapse of steel area is proposed,which can serve as... |
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| Keywords: | curved box girder stress distribution crack anti-collapse steel protective layer thickness |
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