平潭海峡公铁两用大桥通航孔桥桥塔施工关键技术
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摘要
平潭海峡公铁两用大桥处于典型的大风海洋环境,其FPZQ-3标段的3座通航孔桥均为双塔双索面钢桁-混凝土混合梁斜拉桥,均采用H形钢筋混凝土桥塔,塔身最高达200m。塔柱标准节段长6m,采用液压爬模施工,在爬模架体外侧采用冲孔钢板网进行全封闭防风;下横梁采用钢管支架施工、上横梁采用钢牛腿+支架施工,上、下横梁与塔柱均采用异步施工,在下横梁下方设1道空间桁架式横撑进行临时锁定;每个桥塔配备2台D1100-63V型塔吊进行整体吊装。
The Pingtan Straits Rail-cum-Road Bridge is located in a typical windy marine environment.The three navigable span bridges in the FPZQ-3 section of the bridge are all cable-stayed bridges which consist of double pylons,double cable planes,and steel truss-concrete hybrid girders,and H-shaped reinforced concrete pylons with a maximum height of 200 mare adopted for all the bridges.The standard section of a pylon column is 6 mlong,which is constructed by hydraulic creeping formwork.The outside of the creeping formwork is made of perforated steel plate for wind-break.In the construction of lower beam,steel tube supports are adopted;in the construction of the upper beam,the steel brackets + supports are adopted;meanwhile,in the construction of the upper and lower beams and pylon column,an asynchronous method is adopted;a space truss type transverse brace is set below the lower beam for temporary locking;each bridge pylon is equipped with two D1100-63V pylon cranes for overall hoisting.
The Pingtan Straits Rail-cum-Road Bridge is located in a typical windy marine environment.The three navigable span bridges in the FPZQ-3 section of the bridge are all cable-stayed bridges which consist of double pylons,double cable planes,and steel truss-concrete hybrid girders,and H-shaped reinforced concrete pylons with a maximum height of 200 mare adopted for all the bridges.The standard section of a pylon column is 6 mlong,which is constructed by hydraulic creeping formwork.The outside of the creeping formwork is made of perforated steel plate for wind-break.In the construction of lower beam,steel tube supports are adopted;in the construction of the upper beam,the steel brackets + supports are adopted;meanwhile,in the construction of the upper and lower beams and pylon column,an asynchronous method is adopted;a space truss type transverse brace is set below the lower beam for temporary locking;each bridge pylon is equipped with two D1100-63V pylon cranes for overall hoisting.
引文
[1]中铁大桥勘测设计院集团有限公司.平潭海峡公铁两用大桥施工图设计[Z].武汉:2013.(China Railway Major Bridge Reconnaissance&Design Group Co.,Ltd.Construction Drawing Design Documents of Pingtan Straits Rail-cum-Road Bridge[Z].Wuhan:2013.in Chinese)
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[3]王东辉.平潭海峡公铁两用大桥非通航孔引桥围堰设计与施工[J].桥梁建设,2016,46(3):1-5.(WANG Dong-hui.Design and Construction of Cofferdam for Non-Navigable Span Approach Bridge of Pingtan Straits Rail-cum-Road Bridge[J].Bridge Construction,2016,46(3):1-5.in Chinese)
[4]王东辉.平潭海峡公铁两用大桥航道桥基础设计与施工创新技术[J].铁道标准设计,2017,61(9):68-75.(WANG Dong-hui.Innovative Technology in Channel Bridge Foundation Design and Construction of Pingtan Straits Rail-cum-Road Bridge[J].Railway Standard Design,2017,61(9):68-75.in Chinese)
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[7]马晓东.平潭海峡公铁两用大桥总体施工方案[J].桥梁建设,2017,47(2):1-6.(MA Xiao-dong.General Construction Scheme of Pingtan Straits Rail-cum-Road Bridge[J].Bridge Construction,2017,47(2):1-6.in Chinese)
[8]徐启利,王东辉.平潭海峡公铁两用大桥Z03号墩导管架施工关键技术[J].桥梁建设,2016,46(4):1-5.(XU Qi-li,WANG Dong-hui.Key Techniques for Construction of Jacket Supports at Pier Z03of Guyumen Waterway Bridge of Pingtan Straits Rail-cumRoad Bridge[J].Bridge Construction,2016,46(4):1-5.in Chinese)
[9]蒋本俊.国内现代桥梁高塔施工液压爬模系统应用现状及研究[J].施工技术,2015(14):66-71.(JIANG Ben-jun.The Application Situation and Research Emphasis of Hydraulic Climbing Formwork System in Domestic Modern Bridge Towers[J].Construction Technology,2015(14):66-71.in Chinese)
[10]王杰,徐启利.平潭海峡公铁两用大桥元洪航道桥桥塔桁架式临时横撑设计[J].世界桥梁,2018,46(4):22-26.(WANG Jie,XU Qi-li.Design of Truss Type Temporary Transverse Bracing for Pylons of Yuanhong Navigational Channel Bridge of Pingtan Straits RailCum-Road Bridge[J].World Bridges,2018,46(4):22-26.in Chinese)
[2]王东辉,张立超.平潭海峡公铁两用大桥栈桥设计[J].桥梁建设,2015,45(4):1-6.(WANG Dong-hui,ZHANG Li-chao.Design of Trestle of Pingtan Straits Rail-cum-Road Bridge[J].Bridge Construction,2015,45(4):1-6.in Chinese)
[3]王东辉.平潭海峡公铁两用大桥非通航孔引桥围堰设计与施工[J].桥梁建设,2016,46(3):1-5.(WANG Dong-hui.Design and Construction of Cofferdam for Non-Navigable Span Approach Bridge of Pingtan Straits Rail-cum-Road Bridge[J].Bridge Construction,2016,46(3):1-5.in Chinese)
[4]王东辉.平潭海峡公铁两用大桥航道桥基础设计与施工创新技术[J].铁道标准设计,2017,61(9):68-75.(WANG Dong-hui.Innovative Technology in Channel Bridge Foundation Design and Construction of Pingtan Straits Rail-cum-Road Bridge[J].Railway Standard Design,2017,61(9):68-75.in Chinese)
[5]张立超.平潭海峡公铁两用大桥通航孔桥桥塔墩承台施工技术[J].桥梁建设,2017,47(6):1-6.(ZHANG Li-chao.Construction Techniques for Pile Caps of Pylon Piers of Navigable Span Bridges of Pingtan Straits Rail-cum-Road Bridge[J].Bridge Construction,2017,47(6):1-6.in Chinese)
[6]陈翔,梅新咏.平潭海峡公铁两用大桥主航道斜拉桥深水基础设计[J].桥梁建设,2016,46(3):86-91.(CHEN Xiang,MEI Xin-yong.Design of Deepwater Foundations of Main Ship Channel Cable-Stayed Bridge of Pingtan Straits Rail-cum-Road Bridge[J].Bridge Construction,2016,46(3):86-91.in Chinese)
[7]马晓东.平潭海峡公铁两用大桥总体施工方案[J].桥梁建设,2017,47(2):1-6.(MA Xiao-dong.General Construction Scheme of Pingtan Straits Rail-cum-Road Bridge[J].Bridge Construction,2017,47(2):1-6.in Chinese)
[8]徐启利,王东辉.平潭海峡公铁两用大桥Z03号墩导管架施工关键技术[J].桥梁建设,2016,46(4):1-5.(XU Qi-li,WANG Dong-hui.Key Techniques for Construction of Jacket Supports at Pier Z03of Guyumen Waterway Bridge of Pingtan Straits Rail-cumRoad Bridge[J].Bridge Construction,2016,46(4):1-5.in Chinese)
[9]蒋本俊.国内现代桥梁高塔施工液压爬模系统应用现状及研究[J].施工技术,2015(14):66-71.(JIANG Ben-jun.The Application Situation and Research Emphasis of Hydraulic Climbing Formwork System in Domestic Modern Bridge Towers[J].Construction Technology,2015(14):66-71.in Chinese)
[10]王杰,徐启利.平潭海峡公铁两用大桥元洪航道桥桥塔桁架式临时横撑设计[J].世界桥梁,2018,46(4):22-26.(WANG Jie,XU Qi-li.Design of Truss Type Temporary Transverse Bracing for Pylons of Yuanhong Navigational Channel Bridge of Pingtan Straits RailCum-Road Bridge[J].World Bridges,2018,46(4):22-26.in Chinese)