摘要
武汉天兴洲公铁两用长江大桥为双塔三索面三主桁公铁两用斜拉桥,对该桥公路桥主桥钢桥面环氧沥青混凝土铺装的设计与施工进行研究。采用通用有限元程序ADINA建立铺装结构局部梁段模型,根据有限元分析结果并结合该桥结构与环境条件确定环氧沥青铺装层厚度为60 mm,根据材料及铺装结构性能优化环氧沥青混合料并确定铺装层结构形式。针对该桥结构与环境条件,施工中采用粘结料智能洒布、施工时温控制与施工养护等关键技术。目前,该桥已经全线贯通,运营情况良好。
Wuhan Tianxingzhou Changjiang River Rail-cum-Road Bridge is a rail-cum-road cable-stayed bridge having two pylons,three cable planes and three main trusses.The design and construction of the epoxy asphalt concrete pavement for the steel deck of the roadway main bridge of the bridge were researched.The general finite element programme ADINA was used to establish the sectional model for the pavement structure of the local girder.In accordance with the finite element analysis and in consideration of the bridge structure and environmental conditions,it was determined that the thickness of the epoxy asphalt concrete pavement was to be 60 mm and also in accordance with the material and pavement structure properties,the asphalt mixture was optimized and the pavement structure type was finalized.In the light of the specific conditions of the bridge,a series of the key techniques of the intelligent binder spraying and temperature control in the construction process and construction curing were applied.Presently,the whole bridge has been put in operation and the operation of the bridge is so far son good.
出处
《桥梁建设》
EI
CSCD
北大核心
2011年第1期79-82,共4页
Bridge Construction
基金
交通部西部交通建设科技项目(2009318000086)
教育部新世纪人才计划项目(NCET-08-0118)
关键词
铁路公路两用桥
桥面
环氧沥青混凝土
铺装
设计
施工技术
rail-cum-road bridge
deck
epoxy asphalt concrete
pavement
design
construction technique
