哈大客专宋家屯特大桥零号块施工工艺特点

摘要

铁路客运专线大跨连续梁施工比较普及,零号块作为连续梁段起步段,起到上部结构与桥墩的连接作用,是施工过程中的重要环节.本文从支架、支撑、钢筋、模板、混凝土、预应力等方面简要概述了哈大客专宋家屯特大桥零号块施工工艺特点,为同类桥梁连续梁的施工提供参考经验.%The construction of long-span continuous girder for passenger dedicated railway line is more common. As the starting section of continuous girder section, 0# block plays the connecting role between superstructure and pier, so it is an important link in the construction process. This paper gives a brief overview of the construction technology of 0# block of Songjiatun Large-span Bridge in Harbin-Dalian Passenger Dedicated Railway from scaffold, support, steel bar, formwork, concrete and prestress, to provide reference for the construction of continuous girders of similar bridges.