刚构桥边跨现浇段与引桥架设同步施工技术研究

The Study of Synchronization Construction Technology between the Rigid Frame Bridge Side Span Cast-in-place Section and the Approach Bridge Erection

以郑卢高速公路目前河南省第一高桥大铁沟特大桥为例,介绍了该桥边跨现浇段与引桥同步施工技术,实现了边跨现浇段的施工不制约引桥架设箱梁的施工进度,缩短了引桥架设箱梁的施工工期,提高施工效率,利用架设完毕的引桥箱梁桥面作为平台,避免了高空吊运,相应地减少了人员、机械设备的投入,具有较高的推广应用价值。

Taking a special large bridge of Zhenglu highway as an example, this paper introduced the synchronization construction technology between the bridge side span cast-in-place section and the approach bridge, which realized the side span cast-in-place section construction didn't restrict the construction progress of the approach box beam erection, also shorten the construction period of the approach bridge box beam erection and improved the construction efficiency. Using the approach bridge box beam after erection as a platform, it also avoided the high altitude lifting, accordingly reduced the input of personnel and mechanical equipment, and also had a high value of popularization and application.