京沪高速铁路支架现浇梁施工及线形控制技术

On the technology of linear control and construction craft of cast-in-place beam in Jing-Hu high-speed railway

以京沪高速铁路DK890+958.82处北冯特大桥跨309省道工程为例,结合线形观测的重要性及施工过程中控制措施、要领,阐述了连续跨施工方案、施工方法,介绍了连续梁线形监控方法,以期使梁的最终线形与设计线形一致。

Taking the project of Beifeng grand bridge spanning 309 provincial highways at the section of DK890 ＋ 958.82 of Jing-Hu high- speed railway as example, and combining with the importance of linear observation and the key points and measures of engineering control during the process of construction. It describes the scheme and method of the construction of continuous beam and introduces the linear control method of construction of continuous in the hope of achieving the accordance between the final line shape and the designed line shape.