谈拱承式预应力钢箱梁天桥施工方法

摘要

分析了拱承式预应力钢箱梁天桥的特点，根据该桥梁的施工原理，从图纸设计、胎架制作、预拼装、构件吊装等方面，阐述了其施工工艺流程及操作要点，为同类型桥梁施工积累了经验。%This PaPer analyzed the characteristics of arch tyPe Pre-stressed steel box girder overPass,according to the construction PrinciPle of the bridge,from the drawing design,jig frame Production,Pre-assembly,comPonent hoisting and other asPects,elaborated its construction techno-logical Process and oPeration key Points,Provided exPeriences for similar bridge construction.