| 分环现浇混凝土拱圈与拱架联合作用机理 |
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| 引用本文： | 刘鹏,陈思甜,郑凯锋.分环现浇混凝土拱圈与拱架联合作用机理[J].公路,2011(3):14-19. |
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| 作者姓名： | 刘鹏 陈思甜 郑凯锋 |
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| 作者单位： | 1. 西南交通大学土木工程学院,成都市,610031
2. 重庆交通大学土木建筑学院,重庆市,400074 |
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| 基金项目： | 重庆市科技计划项目;项目编号CSTC |
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| 摘 要： | 钢筋混凝土箱形拱在拱架上现浇施工时.或圬工拱在拱架上砌筑时,采用分环分段的施工方法,可以利用先期形成的拱环与钢拱架的联合作用,减少拱架的用钢量,达到节省施工成本的目的.为了更加深入地理解该问题,利用虚功原理,研究了拱圈与拱架的联合作用机理,揭示了其荷载分配比例与拱环和拱架的相对刚度有着直接的关系,并在此基础上给出了一个...
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| 关 键 词： | 虚功原理 联合作用 机理 钢筋混凝土 箱形拱桥 拱架 |
Co-action Mechanism of Concrete Cast-in-situ Box Arch Ring and Arch Centering |
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| LIU Peng,CHEN Si-tian,ZHENG Kai-feng.Co-action Mechanism of Concrete Cast-in-situ Box Arch Ring and Arch Centering[J].Highway,2011(3):14-19. |
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| Authors: | LIU Peng CHEN Si-tian ZHENG Kai-feng |
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| Institution: | LIU Peng1,CHEN Si-tian2,ZHENG Kai-feng1 (1.School of Civil Engineering,Southwest Jiaotong University,Chengdu 610031,China,2.School of Civil Engineering & Architecture,Chongqin Jiaotong University,Chongqin 400074,China) |
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| Abstract: | Reinforced concrete box arch or masonry arch is often built with aid of arch centering and with the method of concretion layer by layer and segment by segment.In this way,the co-action of arch ring and arch centering is used to reduce the amount of steel of arch centering and to economize construction cost.The virtual work principle is employed to study on the co-action of arch ring and arch centering in order to more in-depth understand the issue.The load distribution ratio between arch ring and arch cente... |
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| Keywords: | virtual work principle co-action mechanism RC box arch bridge arch centering |
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