| 结构截面改变在既有双曲拱桥加固中的应用探讨 |
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| 引用本文： | 刘志华,陈宇新.结构截面改变在既有双曲拱桥加固中的应用探讨[J].北方交通,2012(6):126-129. |
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| 作者姓名： | 刘志华 陈宇新 |
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| 作者单位： | 1. 辽宁大通公路工程有限公司,沈阳,110166
2. 辽宁省交通规划设计院,沈阳,110166 |
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| 摘 要： | 通过介绍双曲拱桥典型的病害,分析了常用的加固方法的优缺点,采用改变截面形式对辽宁省某双曲拱桥进行加固,即拱肋之间新增新浇钢筋混凝土拱板,使其与拱肋、拱波形成箱型截面,通过提高截面面积、改善截面刚度的方式提高双曲拱桥的承载力。
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| 关 键 词： | 双曲拱桥 结构病害 改造加固 双曲拱变箱形拱 |
Application of Structure Section Change on Reinforcement of Existing Double- curved Arch Bridge |
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| Abstract: | Through the introduction to typical diseases of double arch bridge,merits and demerits of common reinforcement methods are introduced.Some double arch bridges in Liaoning province are reinforced,by the adoption of changing section form,which is to add newly-casted reinforced concrete arch slabs between arch ribs and make arch slab,arch rib and two-way curved arch tile to form a box section.By means of increasing area and improving rigidity of section,bearing capacity of double arch bridge is improved. |
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| Keywords: | Double - curved arch bridge Diseases of structure Reconstruction and reinforcement Change fi'om double- curved arch to box arch |
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