摘要
结合一座预应力混凝土连续箱梁的顶升调坡改造工程,对桥梁调坡顶升改造施工的关键技术进行了初步探讨与阐述,指出通过桥梁顶升技术将既有下匝道桥梁进行调坡顶升与后来建造的桥梁进行有效连接,保证桥梁的立体衔接是桥梁顶升改造的一个新的发展方向,也是将来城市桥梁进行改造扩建的一项新任务。
Combining with the jacking and adjusting reconstruction project of some prestressed concrete continuous box girder, the paper has the initial exploration and illustration of the key technique for the adjusting and jacking reconstruction of bridges, and points out the bridge jacking technique has the adjusting gradient and jacking of the existing ramp bridges, as well as the effective connection with the later constructed bridges, so it is the new orientation to ensure the three-dimension cohesion for the bridge jacking reconstruction, and the new task for the reconstruc- tion and extension of the urban bridges.
出处
《山西建筑》
2015年第20期167-168,共2页
Shanxi Architecture
关键词
顶升
调坡
结构验算
jacking, adjusting gradient, structural calculation
