Application Of BIM In The Construction Process Of The Beam Support Of The Main Span Of 128m Concrete Filled Steel Tubular Arch Bridge In Zhengwan Railway

With the growing of China’s economic strength,productivity levels obtained fast development,the degree of information technology continues to improve,deeply influenced the social from all walks of life.In the field of bridge engineering,the design idea and structure form is becoming more and more advanced,traditional industries extensive management model,leading to low construction efficiency,hinder the progress and innovation in the field of bridge engineering,is facing a variety of ways to improve.The emergence of BIM technology can effectively solve the problem,the BIM model covers all phases of the project lifecycle,provides timely,complete and accurate information for the bridge from design to operation and maintenance at different stages,and provides a platform for information exchange and sharing for project participants at different stages,it is based on visualization,coordination and information integration,through the full life cycle of bridge engineering,can greatly improve the construction efficiency and construction quality.Although the current civil engineering industry uses information technology as a supporting tool in the planning,design,construction and operation and maintenance phases,however the application of BIM technology industry of our country bridge engineering is still in its infancy,there are few cases in which BIM technology integration is really used throughout the life cycle of bridges,project participants in many cases just heard of BIM technology,the main reason lies in the lack of BIM core modeling software for bridge engineering,the relevant BIM specification standards have not yet been formed and BIM has less application case in bridge construction.The industry needs to further carry out in-depth study,the use of BIM technology to better serve our bridge engineering services.In this paper,the collar beam construction of the 128 m Nielsen arch bridge of Zhengwan Railway is taken as the engineering background,mainly studies the application of BIM technology in the construction of the steel column and the Beier beam support system,and completes the BIM model of the basic support system with the design drawings and the special construction scheme,the BIM technology is applied to the whole process of the beam support construction,carried out the following several aspects of research work:(1)Paper starting from the definition of building information model(BIM),introduces the domestic and foreign current situation of the development of BIM technology,and introduces BIM core modeling software and IFC technical standard,and clarifies the selected modeling software and research direction.(2)The different functions of the application of BIM technology in bridge engineering design stage,construction stage and operation and maintenance management stage,shows that BIM technology can effectively solve the problems that can’t be solved at the traditional technical level,which greatly improves the design quality and construction efficiency and for the construction unit has brought considerable economic and social benefits.(3)Research based on the collar beam construction of the 128 m Nielsen arch bridge of Zhengwan Railway and the construction method of the steel column and the Beier beam support system,set up 128 m arc bridge collar beam construction parametric component library,the family can provide BIM model for similar bridge BIM modeling components.(4)This paper analyzes the application practice of BIM technology in the process of 3D plot,collision detection,material statistic and 4D simulation in the construction of the beam support of the 128 m Nielsen system of the Zhengwan Railway,and validates the BIM technology in the 128 m Nielsen system of Zhengwan Railway it is feasible to combine the actual application with the construction of the tie arch.The BIM model established in this paper provides a powerful technical guarantee for the site construction organization of the construction unit,improves the management level of the field information,and greatly improves the construction management efficiency.