芜湖长江公路二桥引桥段上部结构设计与施工  

Design and Construction of Upper Structure of Approach Section of Wuhu Yangtze River Expressway Bridge No.2

作　　者：王凯 胡可 段海澎 

机构地区：[1]安徽省交通控股集团有限公司,合肥230000

出　　处：《公路交通技术》2017年第3期47-51,共5页Technology of Highway and Transport

基　　金：安徽省交通运输厅科技进步计划项目(皖交科技(2014)193号)

摘　　要：芜湖长江公路二桥引桥为我国首座全体外预应力节段梁桥,也是国内首次采用下行式架桥机架设节段梁施工。介绍芜湖长江公路二桥引桥段设计采用的新型结构形式,重点对全体外预应力节段梁的总体构造特点、预应力钢束配置特点及大挑臂轻型薄壁箱梁结构的特点进行分析与研究,并对节段梁标准化施工进行介绍,主要分析下行式架桥机架设工艺。Wuhu Yangtze River Expressway Bridge No. 2 is the f irs t whole external prestressed segment beam br idge , and i t is also the f irs t time in China adopting downstream bridge machine to erect segment beam. This paper introduces new structure adopted in design fo r approach section of Wuhu Yangtze River Expressway No. 2 Br idge , mainly pay analysis and research to characteristics o f general structure of whole external prestressed segment be am, characteristics of the prestressed cable arrangement and characteristics of l ight -weight thin-wal led box girde r structure fo r large can t i le ver. Also this paper introduced standard construction of segment be am, mainly analysis to downstream bridge machine process.

关 键 词：全体外预应力 节段拼装 连续梁 设计与施工 工业化建造 

分 类 号：U442.5[建筑科学—桥梁与隧道工程]