山区高速公路匝道桥现浇箱梁支架施工技术

Cast-in-pace Box Girder Support Construction Technique of Ramp Bridge in Mountainous Expressway

摘要:

山区地形条件复杂，修建高速公路匝道设计半径小，墩柱高度大，通过玉石高速坪地互通项目匝道桥现浇梁的顺利实施，总结了山区高速匝道桥现浇支架的比选经验，给出现浇支架的设计以及相应的施工流程。

Abstract:

The mountainous terrain conditions are complex. The design radius of constructing the expressway ramp is small. The height of pier column is high. According to the smooth implementation of the cast-in-place girder of ramp bridge in Yushi Expressway Pingdi Interchange Project, the comparison and selection experience of the cast-in-place support of the mountainous expressway ramp bridge is summarized, and the design method and the relevant construction process of cast-in-place support are given.