四川汉源县龙潭沟1号桥设计与施工

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英文篇名：Design and Construction of Lontangou No.1 Bridge in Hanyuan County,Szechwan 中文刊名：交通科技 英文刊名：Transportation Science & Technology 作者：蒋益民 英文作者：Jiang Yimin ; China Railway Major Bridge Reconnaissance & Design Group Co. ; Ltd. 中文关键词：拱桥 ; 设计与施工 ; 军用梁 英文关键词：arch bridge ; design and construction ; military beam 出版日期：2015-06-15 机构：中铁大桥勘测设计院集团有限公司; 年：2015 期：03 出版单位：交通科技

摘要

以四川汉源县龙潭沟1号桥为例,介绍了上承式钢筋混凝土空腹箱型无铰拱桥的受力特点和相关设计参数的选用;采用三维空间程序对该桥进行了计算,验证了该结构的抗震性能和稳定性。提出了用军用梁施工拱肋的施工方案,并进行了详细的计算。该方案通过调节下弦杆长度能较好地拟合拱肋悬链线,并可通过横向增减梁片来适应拱肋宽度和拱架施工期间的内力要求。
Based on Longtangou Bridge in Sichuan province,the determination of different mechanical characteristics and design parameters of reinforced concrete deck hollow box hingeless arch bridge were described in this paper.A three dimensional FE program was employed to calculate the stability and seismic performance of this bridge.Military construction method was proposed and the detailed structure characteristics related to this method was carefully studied.There are two outstanding advantages in this method,firstly,through modifying the length of the link chord the rib centenary profile could be better adjusted;secondly,by the measure of adding or reducing the beam panel the different internal force during the whole construction phase can be dealt with.

引文

[1]武汉地震工程研究院,四川赛思特科技有限公司.汉源县新县城2号主干道龙潭沟1号桥、2号桥工程场地地震安全性评价报告[R].武汉:武汉地震工程研究院、四川赛思特科技有限公司,2006.
    [2]顾安邦,范立础.桥梁工程:下册[M].北京:人民交通出版社,2000.
    [3]JTG D62-2004公路钢筋混凝土及预应力钢筋混凝土桥涵设计规范[S].北京:人民交通出版社,2004.
    [4]JTJ041-2000公路桥涵施工技术规范[S].北京;人民交通出版社,2000.
    [5]TB 10002.1-2005铁路桥涵设计基本规范[S].北京;人民铁道出版社,2005.