| 罗浮山东江博罗大桥加固设计 |
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| 引用本文： | 刘莉,宋神友. 罗浮山东江博罗大桥加固设计[J]. 筑路机械与施工机械化, 2011, 28(4): 69-72 |
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| 作者姓名： | 刘莉 宋神友 |
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| 作者单位： | 1. 广东省交通运输规划研究中心,广东,广州,510101
2. 广东省公路建设有限公司,广东,广州,510600 |
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| 摘 要： | 罗浮山东江博罗大桥主桥为100m跨下承式系杆拱桥，该桥主墩（大悬臂空心墩）悬臂根部出现了4mm宽的弯拉裂缝。针对该桥典型病害现状，分析了其成因，并通过加固方案比选，最终确定采用新增盖梁对旧桥墩悬臂减载的方法进行加固，取得了较好效果，可供同类病害处治参考。
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| 关 键 词： | 系杆拱桥 悬臂空心墩 裂缝 加固 |
Reinforcement Design of Dongjiang Boluo Bridge in Luofu Mountain |
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| LIU Li,SONG Shen-you. Reinforcement Design of Dongjiang Boluo Bridge in Luofu Mountain[J]. Road Machinery & Construction Mechanization, 2011, 28(4): 69-72 |
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| Authors: | LIU Li SONG Shen-you |
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| Affiliation: | LIU Li~1,SONG Shen-you~2 1.Guangdong Provincial Transport Planning and Research Center,Guangzhou 510101,Guangdong,China 2.Guangdong Provincial Highway Construction Co.Ltd.,Guangzhou 510600,China |
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| Abstract: | The main bridge of Dongjiang Boluo Bridge in Luofu Mountain is a tube tied arch bridge with below supports over the Dongjiang River by 100 meters.Recently,a 4-mm-wide flexural crack was found at the root of the big cantilever of the hollow pier.The typical situation of the disease and the reasons were analyzed.By comparing several reinforcement schemes,the method adding a new beam to reduce the loads of the old one so as to reinforce the cantilever is adopted,and better results were achieved,which can provi... |
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| Keywords: | bowstring arch bridge cantilever hollow pier crack reinforce |
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