萍乡特大桥现浇箱梁支架施工技术

Concerning on cast-in-situ box girder bracket construction technology of Pingxiang extra-long Bridge

以沪昆客专萍乡特大桥为工程背景,结合现场施工情况,对支架法现浇施工方案的确定和设计进行了分析,结合实体工程对支架设计中基底承载力、强度、刚度、挠度、稳定性进行了计算分析。结果表明,各项指标满足规范和设计要求,施工方案可有效指导连续梁各阶段的施工。

Taking Pingxiang extra-long Bridge project on Shanghai-Kunming passenger special line as the background,combining with on-spot construction condition,it analyzes the determination and design of cast-in-situ construction scheme with bracket method.Integrating with the project,it calculates and analyzes the basal bearing capacity,strength,stiffness,deflection,and stability in bracket design.Results show that each index meets the requirements of norms and design,and the construction scheme can effectively guide the continuous girder construction at various phases.