T构转体桥精细化施工控制技术  

Fine Construction Control Technology for T-shaped Swivel Bridge

作　　者：胡义新[1,2] 孙艳鹏 孙远 姚进 HU Yi-xin;SUN Yan-peng;SUN Yuan;YAO Jin(CCCC Second Harbour Engineering Co Ltd No.6 Branch,Wuhan 430014,China;School of Civil Engineering&Mechanics,Huazhong University of Science and Technology,Wuhan 430074,China)

机构地区：[1]中交第二航务工程局有限公司第六工程分公司,湖北武汉430014 [2]华中科技大学土木工程与力学学院,湖北武汉430074

出　　处：《土木工程与管理学报》2019年第4期108-113,共6页Journal of Civil Engineering and Management

基　　金：湖北省技术创新专项重大项目(2017ACA183)

摘　　要：近年来,由于经济的高速发展,国家铁路网随之不断完善,越来越多的新建桥梁需要跨越既有高铁线路。为解决跨高铁营业线T构桥转体施工的安全、精准、高效难题,结合桥址处多风且风速大、距离营业线近、体系转换要求高、高铁运营繁忙等特点,本文以郑万铁路跨京广客专T构转体桥为依托,研究了T构转体桥精细化施工控制技术,通过利用全过程控制理念,明确了转体施工总体控制流程;采用精细化控制方法,分析了转体施工的受力、结构响应以及不平衡重的识别;运用信息化控制手段,促成了转体桥梁质量安全评估方法及相关体系,保障了郑万铁路T构转体的安全实施。通过工程实例的应用,证明了该技术的可行性,可为今后类似工程提供借鉴与参考。In recent years,due to the rapid economic development,the national railway network has been constantly improved,and more and more new bridges need to cross the existing high-speed railway lines.In order to solve the problems of safety,accuracy and efficiency in the swivel construction of T-frame bridge across high-speed railway line,this paper studies the fine construction control technology of T-frame swivel bridge based on the special T-frame swivel bridge across Beijing-Guangzhou passenger line of Zhengwan Railway,considering the characteristics of windy bridge site,high wind speed,close distance to business line,high requirement for system transformation and busy operation of high-speed railway.Through the use of the whole process control concept,the overall control process of turning construction is clarified;the force,structural response and unbalanced weight identification of turning construction are analyzed by means of refined control method;the quality and safety evaluation method and related system of turning bridge are promoted by means of information control means,and the safety implementation of turning T structure of Zhengzhou-Wanzhou Railway is guaranteed.Through the successful application of engineering examples,the feasibility of this technology is proved,which can provide reference for similar projects in the future.

关 键 词：T构桥 智能转体 精细化控制 信息化集成控制体系 N-D电子施工沙盘 

分 类 号：U445[建筑科学—桥梁与隧道工程]