| 增设RC拱肋加固圬工拱桥的设计要点及理论分析 |
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| 引用本文： | 刘君奎,袁瑞军,王志祥.增设RC拱肋加固圬工拱桥的设计要点及理论分析[J].内蒙古公路与运输,2020(1):13-15. |
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| 作者姓名： | 刘君奎 袁瑞军 王志祥 |
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| 作者单位： | 赤峰市公路管护与运输保障中心,内蒙古赤峰024000;赤峰市公路管护与运输保障中心,内蒙古赤峰024000;赤峰市公路管护与运输保障中心,内蒙古赤峰024000 |
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| 摘 要： | 提出了采用钢筋混凝土拱肋加固圬工拱桥结构的方法。以某上承式实腹圬工拱桥为实例,根据其病害的主要特点,结合对原桥承载能力的计算分析结果,采用增设钢筋混凝土拱肋的加固设计方案。然后,建立原拱圈采用板单元和新增拱肋采用杆系单元的有限元计算模型对加固后桥梁承载能力进行了理论分析,结果表明,加固后桥梁承载能力满足公路-Ⅱ级荷载。
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| 关 键 词： | 桥梁工程 圬工拱桥 承载能力 加固 拱肋 |
Design Points and Theoretical Analysis of Masonry Arch Bridge Strengthened by Adding RC Arch Rib |
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| LIU Jun-kui,YUAN Rui-jun,WANG Zhi-xiang.Design Points and Theoretical Analysis of Masonry Arch Bridge Strengthened by Adding RC Arch Rib[J].Highways & Transportation in Inner Mongolia,2020(1):13-15. |
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| Authors: | LIU Jun-kui YUAN Rui-jun WANG Zhi-xiang |
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| Abstract: | A method of strengthening masonry arch bridge structure with RC arch rib was proposed.In view of an existing masonry arch bridge,through the analysis of the characteristics of the disease,the reinforcement scheme is designed,and the specific treatment measures are defined.And then,the calculation model of the strengthened bridge is established and the theoretical analysis is carried out,The results shown that the bearing capacity after reinforcement meets the requirements of reinforcement design load. |
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| Keywords: | bridge engineering masonry arch bridge load-bearing capacity strengthening RC arch rib |
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