变截面连续钢-混凝土组合梁桥拼宽设计研究  

Research on the Widening Design of Continuous Steel Concrete Composite Beam Bridge with Variable Cross Section

作　　者：许永超 申哲会 XU Yong-chao;SHEN Zhe-hui(JSTI Group Co.,Ltd.,Nanjing 210017,China)

机构地区：[1]苏交科集团股份有限公司,江苏南京210017

出　　处：《中国市政工程》2024年第5期30-32,38,158,共5页China Municipal Engineering

摘　　要：为促进钢-混凝土组合梁结构在公路改扩建工程中的应用,文章以扬溧高速丹徒枢纽主线上跨沪宁高速主线桥拼宽设计为例,对老桥采用钢-混凝土结构进行拼宽设计。解决桥梁净空受限、新老桥变形协调、施工周期控制严格等问题,能为国内同类桥梁的拼宽设计提供借鉴。To promote the application of steelconcrete composite beam structure in highway reconstruction&expansion projects,it takes the widening design of the main bridge spanning the Huning Expressway on the Dantu hub of Yangli Expressway as an example,and adopts steel concrete structure for widening design of the old bridge.Addressing issues such as limited bridge clearance,coordinated deformation between new&old bridges,and strict construction period control,which can provide reference for the widening design of similar bridges in China.

关 键 词：钢-混凝土组合梁 旧桥拼宽 变截面 设计 

分 类 号：U445.6[建筑科学—桥梁与隧道工程]