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

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。

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.