浅谈双层钢箱梁吊装技术和质量安全监督要点

Introduction to Double Steel Box Girder Hoisting Technique and Quality Safety Supervision Points

跨河双层钢箱梁的上层钢箱梁采用双浮吊、分块大节段吊装方案,下层桥面采用穿巷式下挂轨道配合电动滑车安装方案,施工难度和安全风险均很大。本文以石祥路跨京杭运河桥为例,讲述双层钢箱梁安装的质量和安全监督方法和要点。

Upper steel box girder adopted double crane barge of across the grand canal double steel box girder, block small period of lifting scheme, the lower deck adopted under wear lane type orbit with motor block installation scheme, construction difficulty and risk was big, this article took Shixiang road across Jing-Hang Canal Bridge as an example, expounded double steel box girder installation quality and safety supervision method and key points.