| 广东港东江公路大桥悬臂T构桥梁维修 |
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| 引用本文： | 阳春龙,何任远.广东港东江公路大桥悬臂T构桥梁维修[J].现代交通技术,2014(2):37-40. |
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| 作者姓名： | 阳春龙 何任远 |
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| 作者单位： | 中铁大桥（南京）桥遂诊治有限公司;中铁大桥（南京）桥遂诊治有限公司 |
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| 摘 要： | 广州港东江大桥主桥为双悬臂T构与挂梁相结合的结构形式在多年运营后出现的各种病害,文章分析了病害原因并进行了结构计算分析基础上在此基础上提出采用体外预应力,更换混凝土挂梁,更换桥面铺装等维修改造措施.计算结果表明采用钢结构更换混凝土挂梁对改造该桥型起到很好的效果.
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| 关 键 词： | 悬臂T构 病害分析 体外预应力 维修加固 |
Maintenance of T-shaped Cantilever for Dongjiang River Bridge in Guangzhou Port |
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| Yang Chunlong,He Renyuan.Maintenance of T-shaped Cantilever for Dongjiang River Bridge in Guangzhou Port[J].Modern Transportation Technology,2014(2):37-40. |
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| Authors: | Yang Chunlong He Renyuan |
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| Institution: | ( China Railway Major Bridge (Nanjing) Bridge and Tunnel Inspect ＆ Retrofit Co.,Ltd., Nanjing 210031, China ) |
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| Abstract: | Main bridge of Dongjiang River Bridge in Guangzhou port was T-shaped double cantilever combined with suspended beam. It emerged various diseases after operating for many years. This paper analyzed disease causes and carried out structural calculations. Then it proposed maintenance and reconstruction measures such as replacing concrete suspended beams and bridge deck pavement by external prestressing. The calculation results indicated that replacing concrete suspended beams by using steel structure could effectively improve the bridge. |
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| Keywords: | T-shaped cantilever structure disease analysis external prestressing maintenance and reinforcement |
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