高墩大跨连续梁0号块悬挑托架的设计与施工

摘要

This paper, in combination with the construction of the segment No. 0 of ( 40+64+40 )-m continuous girder of Qinkou super major bridge on Beijing-Fuzhou railway passenger dedicated line, introduced the design idea, characteristics and structure calculation of the cantilever bracket. And then, the paper discussed the preloading of the cantilever structure with reversed supporting point, also discussed the main control points of the construction of cantilever bracket.%结合京福客运专线芹口特大桥(40+64+40)m连续梁0号块的施工，详细介绍悬挑托架的设计思路、特点及结构检算，并对悬挑结构采用反支点预压及悬挑托架施工控制要点进行了探讨。