大跨度系杆拱桥现浇梁支架施工

Cast-in-situ beam support construction of large-span tied-arch bridge

结合西安市东风路灞河桥的支架结构特点,介绍了支架的施工方法,并从预压方式、沉降变形观测点布设、预压程序等方面,阐述了该大跨度系杆拱桥现浇梁支架的预压方案,为同类工程施工积累了经验。

Combining with the support structure features of Ba river bridge on Dongfeng road in Xi＇an city,the paper introduces the support construction methods,and describes cast-in-situ beam support preloading scheme of the large-span tied-arch bridge from aspects of preloading method,subsidence deformation observation point setting and preloading program,which has accumulated experience for similar engineering construction.