箱形拱桥无支架单基肋碰撞合龙吊装技术

The box arched bridge without support single base rib closure lift technology

结合具体工程实例,介绍了大跨度拱桥单基肋碰撞合龙吊装技术的施工工艺,着重阐述了拱箱施工时的稳定措施,并对该吊装技术进行了效益分析,指出其不受地形限制且节省了便道工程和大量脚手架,能降低成本,保证质量。

Combined with specific engineering example,the construction process of large span arched bridge without support single base rib closure lift technology was introduced.The stable measure of arched box construction was illustrated critically,and the lift technology efficiency was analyzed.It pointed out that it was not limited by landform and saved sidewalk engineering and amount scaffolding,which also reduced cost and guaranteed quality.