钢混组合梁在梁式桥中的拼宽设计及应用  

Design and Application of Steel-concrete Composite Girders in the Widening of Girder Bridges

作　　者：吴润泽 郑纪研 WU Runze;ZHENG Jiyan(China Design Group Co.,Ltd.,Nanjing,Jiangsu 210000,China)

机构地区：[1]华设设计集团股份有限公司,江苏南京210000

出　　处：《黑龙江交通科技》2025年第4期90-94,共5页Communications Science and Technology Heilongjiang

摘　　要：改扩建项目中,对既有桥梁进行结构性拼宽往往能最大程度减少工程投资、迅速提升桥梁的通行能力,并且降低对现状交通通行的影响。早期桥梁多为混凝土结构桥梁,因此改扩建项目以混凝土梁桥拼宽居多。通过结合实际案例,对T梁、小箱梁、连续现浇箱梁等多种类型的钢混组合梁拼宽设计及应用情况进行简要概述和总结,并针对性地提出拼宽设计解决方案。In reconstruction and expansion projects,structural widening of existing bridges can often minimize engineering investment,quickly improve the traffic capacity of bridges,and reduce the impact on existing traffic traffic.Most of the early bridges were concrete structure bridges,so the reconstruction and expansion projects were mostly concrete girder bridges.Summarizing the design and application of the cross-width of T-beams,small box girders,continuous cast-in-place box girders and other typers of steel-conerete composite beams based on actual casses.

关 键 词：钢混组合梁桥 拼宽 拼缝设计 独柱墩单支承 

分 类 号：U445.6[建筑科学—桥梁与隧道工程]