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跨中下挠过大是大跨径连续刚构桥常见病害之一,以吉茶高速公路的一座55 m+100 m+55 m的连续刚构桥为实际工程背景,对大跨度连续刚构桥长期下挠的主要原因进行分析,得出一些有意义的建议和措施,以供参考。
Abstract：Undue deflection at midspan is one of the common hazards on long-span continuous rigid-frame bridge.In this paper,several influence parameters on long-term deflection of long-span continuous rigid-frame bridge have been analysed,some suggestions and methods are given for reference.A continuous rigid-frame bridge with span arrangement 55 m+100 m+55 m on Hunan Province Jicha highway was selected as the engineering background.
[1]谢峻,王国亮,郑晓华.大跨径预应力混凝土箱梁桥长期下挠问题的研究现状[J].公路交通科技,2007,24(1):47-50.
[2]Z.P.Bazant,J.Kim.Improved predication model for time-dependent deformations of concrete:part 4-Temperatureeffects[J].Materials and Structures,1992,25:84-94.
[3]Z.P.Bazant,J.Kim.Improved predication model for time-dependent deformations of concrete:part 5-Cyclic load andcyclic humidity[J].Materials and Structures,1992,25:163-169.
[4]J.J.Broks,P.J.Wainwright,A.F.AI-Kaisi.Compressiveand tensive creep of heat-curedordinary portland and slaglement concrete[J].Magazine of Concrete Research Mar.1991.43(154):1-12.
[5]H.Li,T.H.Wee,S.F.Wong.Early-Age Creep and Shrink-age of Blended lement concrete[J].ACI Materials Jour-nal,January-Februry2002:3-10.
[6]Sercomber,Hellmich,Ulm,et al.Modeling of Early-ageCreep of Shotcrete.I:Model and Model parameters[J].Journal of Engineering Mechanics,March 2000:284-291.
[7]JTG D62—2004,公路钢筋混凝土及预应力混凝土桥涵设计规范[S].
[8]巴力,高岩.大跨径连续刚构桥跨中下挠的主要影响因素浅析[S].铁道建筑,2008(11):1-3.
[9]XIAN PING LI,IAN N ROBERTSON.Long-term perform-ance predictions of the north Halawa valley viaduct[Z].USA:UHM/CEE/03-04,university of Havaii,2003.
[10]Cem Topkaya,Widianto,Eirc B.Williamson.Evaluationof Top Flange Bracing Systems for Curved Box Girders[J].Journal of Bridge Engineering.2005,6(10):693-703.
[11]朱汉华.预应力混凝土连续箱梁桥裂缝分析与防治[M].北京:人民交通出版社,2006:46-48.
[12]包立新.对连续刚构桥底板开裂问题的探讨[J].公路,2004,(8):39-41.
[13]李俊.连续刚构桥底板纵向裂缝原因分析[J].公路,2005,(9):1-5.
[14]詹建辉,陈卉.特大跨度连续刚构主梁下挠及箱梁裂缝成因分析[J].中外公路,2005,(1):56-58.
[15]陈性凯.广州华南大桥箱梁裂缝的初步分析[J].中国市政工程,1997,(3):27-28.
[16]叶见署.连续箱梁混凝土超方问题研究[J].公路交通科技,2006,23(4),47-50.
基本信息:
中图分类号:U448.23
引用信息:
[1]陈浩,毛焕雄,曲道来.大跨度连续刚构桥长期下挠成因分析与建议[J].公路工程,2012,37(02):45-49.
2012-04-20
2012-04-20