整体顶升横移技术在水上桥梁改造工程中的应用

THE APPLICATION OF INTEGRAL JACKING AND LATERAL MOVEMENT TECHNOLOGY IN THE RECONSTRUCTION OF WATER BRIDGE

随着国内汽车存有量的爆发式增长,部分桥梁因超设计荷载运营,出现了局部病害,故此需要进行改造。构筑物的顶升平移是一项成熟的工艺,相比于传统吊装拆施工,桥梁顶升横移技术在旧桥改造中具有一定的优越性。通过咸宁市丹桂桥改造工程采用水上桥梁整体顶升横移技术的工程实例,论述施工工艺,可为类似水上桥梁提供可借鉴的经验。

With the explosive growth of the number of vehicles in China,some Bridges have local diseases due to over-design load operation,so they need to be rebuilt.The jacking and moving of structures is a mature technology.Compared with the traditional lifting and dismantling construction,the jacking and moving technology of Bridges has certain advantages in the reconstruction of old Bridges.The paper discusses the construction technology through the engineering example of the overall lifting and transverse movement technology of the overwater bridge in the reconstruction project of Dangui Bridge in Xianning City,and provides some experience for similar overwater Bridges.