混凝土连续桥梁体外预应力加固技术研究

Study on External Pre-stressing Reinforcement Technology of Concrete Continuous Bridge

在公路桥梁工程加固施工中,体外预应力加固技术为一种新型的桥梁加固技术,可有效提高桥梁的稳定性和安全性,延长桥梁使用年限。以南二环高速九江互通GK0+777.628匝道桥维修加固工程为例,对桥梁结构存在的问题进行了分析,然后对体外预应力加固技术的应用进行了分析和探讨,提高了桥梁结构荷载能力,延长了公路桥梁的使用年限。

In the highway bridge engineering reinforcement construction, the external pre-stressing reinforcement technology is a new bridge reinforcement technology, and can effectively improve the stability and safety of bridges and lengthen the service life of bridges. Taking the South Ring II Expressway Jiujiang Interchange GK0+777.628 Ramp Maintenance and Reinforcement Project as an example, the article analyzes the problems existing in the bridge structure, and then analyzes and discusses the application of the external pre-stressing reinforcement technology in order to improve the bearing capacity of bridge structure and lengthen the service life of highway bridge.