京沪高铁跨锡北运河系杆拱桥施工监控
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摘要
京沪高铁跨锡北运河钢管混凝土系杆拱桥采用先拱后梁顺序施工,系梁采用挂篮现浇施工方法,其施工工艺较为复杂,施工难度大.文中针对该桥上部结构简要介绍了施工监控的前期计算及原理,并从线形监测、控制截面应力监测、温度场监测、拱脚位移监测及吊杆力监测等方面对上部结构的施工监测内容进行了阐述和分析.该桥的施工监控取得了较好的效果,使施工满足设计要求,可为今后同类型桥梁的施工监控提供借鉴.
Construction sequence of Beijing-Shanghai express railway steel pipe concrete tied-arch bridge cross Wuxi north canal is arch first and beam late,and the construction method of tie beam is hanging basket.The construction process is very complex and difficult.Preliminary work and principle of construction supervision with bridge superstructure are introduced in this paper.The contents of construction monitoring are expounded by linear fitting,stress monitoring of control section,temperature field monitoring,arch foot displacement monitoring,suspender force monitoring.Effect of the construction supervision of the bridge is good.This makes the bridge beam construction meet the design requirement.It can be used in other similar projects.
Construction sequence of Beijing-Shanghai express railway steel pipe concrete tied-arch bridge cross Wuxi north canal is arch first and beam late,and the construction method of tie beam is hanging basket.The construction process is very complex and difficult.Preliminary work and principle of construction supervision with bridge superstructure are introduced in this paper.The contents of construction monitoring are expounded by linear fitting,stress monitoring of control section,temperature field monitoring,arch foot displacement monitoring,suspender force monitoring.Effect of the construction supervision of the bridge is good.This makes the bridge beam construction meet the design requirement.It can be used in other similar projects.
引文
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[3]陶然位.良塘公路运河大桥先拱后梁施工技术应用[J].黑龙江科技信息,2007(6):165.Tao Ranwei.The construction technology of arch first andbeam late in Liangtang highways canal bridge[J].Hei-longjiang Science and Technology,2007(6):165.(inChinese)
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[6]丁文胜,孙福全.纵向地震作用下系杆拱桥与引桥间碰撞响应研究[J].江苏科技大学学报:自然科学版,2007,21(2):25-29.Ding Wensheng,Sun Fuquan.Analysis of pounding effectof longitudinal ground motion on tie arch bridge and sidespan[J].Journal ofJiangsu University ofScience andTechnology:Natural Science Edition,2007,21(2):25-29.(in Chinese)
[7]顾安邦,张永木.桥梁施工监测与控制[M].北京:机械工业出版社,2005:11-17.
[8]辛江红,石明星.钢管混凝土系杆拱桥施工监控分析[J].甘肃科技,2009,25(23):138-140.Xin Jianghong,Shi Mingxing.Construction supervisionstudy on CFST tied-arch bridge[J].Gansu Science andTechnology,2009,25(23):138-140.(in Chinese)
[2]骆海锋.三店塘大桥系杆拱桥设计[J].城市道桥与防洪,2008(10):78-80.Luo Haifeng.The design of tie-arch bridge in Three ShopsPond bridge[J].Urban Roads Bridges and Flood Control,2008(10):78-80.(in Chinese)
[3]陶然位.良塘公路运河大桥先拱后梁施工技术应用[J].黑龙江科技信息,2007(6):165.Tao Ranwei.The construction technology of arch first andbeam late in Liangtang highways canal bridge[J].Hei-longjiang Science and Technology,2007(6):165.(inChinese)
[4]金成棣.预应力混凝土系杆拱桥的设计与施工[J].上海公路,2006(1):1-6,40.Jin Chengdi.The design and construction of prestressedconcrete tie-arch bridge[J].Shanghai Highways,2006(1):1-6,40.(in Chinese)
[5]陆泽平.挂篮技术施工的要点[J].福建建材,2010(1):74-75.Lu Zeping.The main points of construction of hangingbasket[J].Fujian Building Materials,2010(1):74-75.(in Chinese)
[6]丁文胜,孙福全.纵向地震作用下系杆拱桥与引桥间碰撞响应研究[J].江苏科技大学学报:自然科学版,2007,21(2):25-29.Ding Wensheng,Sun Fuquan.Analysis of pounding effectof longitudinal ground motion on tie arch bridge and sidespan[J].Journal ofJiangsu University ofScience andTechnology:Natural Science Edition,2007,21(2):25-29.(in Chinese)
[7]顾安邦,张永木.桥梁施工监测与控制[M].北京:机械工业出版社,2005:11-17.
[8]辛江红,石明星.钢管混凝土系杆拱桥施工监控分析[J].甘肃科技,2009,25(23):138-140.Xin Jianghong,Shi Mingxing.Construction supervisionstudy on CFST tied-arch bridge[J].Gansu Science andTechnology,2009,25(23):138-140.(in Chinese)
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