华南大桥的加固设计与施工  

The Strengthening Design & Construction of Huanan Bridge

作　　者：吕梅梅[1] 

机构地区：[1]广州华南路桥实业有限公司,广东广州510640

出　　处：《中国市政工程》2007年第2期25-27,共3页China Municipal Engineering

摘　　要：广州华南大桥主桥为三跨预应力混凝土连续刚构。该桥运营6a后腹板出现大量斜裂缝等病害。分析了该桥主桥裂缝的成因,有针对性地提出了加固设计方案,介绍了加固施工的顺序及工艺要求、过程检测、荷载试验等。通过加固后的荷载试验及加固后运营一年多证明了该桥的加固设计和施工达到了预期目的。该桥的经验对类似工程有一定借鉴意义。The main bridge of Huanan Bridge in Guangzhou is the prestressed concrete continuous rigid frame bridge of three spans. After service for six years, there are lots of diagonal cracks in its webs. In this paper, the causes of the cracks in the main bridge of Huanan Bridge are analyzed and the strengthening design is proposed aim for the cau- ses. Furthermore, the strengthening construction and intermediate inspection are introduced.According to the load test and the usage of one year after reinforce, the strengthening design and construction achieve the prospective target. The successful experience of this bridge has certain reference values for similar projects.

关 键 词：华南大桥 裂缝 加固 设计 施工 

分 类 号：U445.72[建筑科学—桥梁与隧道工程]