Partial Swivel Construction Of Pc Continuous Rigid Frame Bridge And Application Of BIM Technology

As a new technology,the construction industry must take good use of BIM technology in order to realize industrial transformation and upgrading.We all know,as a new technology,BIM has been widely used in China’s building field and turned out highly effective.Thus,It has been tried to be referenced in infrastructure engineering.Bridge engineering,as an important part of infrastructure construction,plays an important role as a transportation hub.At present,the application of BIM technology in bridge engineering is still in the exploration stage.L3 joint part of Yingbin Avenue and Zhengwan high-speed railway interchange project is partially-revolved prestressed concrete continuous rigid frame bridge.This paper takes it as an engineering background,building information model that containing complete engineering information is established to study the application of BIM technology in the construction process of the bridge,such as establishing a three-dimensional visual information model,quantitative statistics,construction simulation,schedule management,etc.Firstly,this paper uses Autodesk Revit software to create core component family library of PC continuous rigid frame bridge.The control parameters are set for the singlebox five-chamber box girder family,and the parametric model of the partially-revolved prestressed concrete continuous rigid frame bridge is established.Material information is given to BIM model components,and engineering quantity information is obtained,which facilitates engineering quantity statistics and cost statistics.Secondly,according to the characteristics of the swivel construction,the refined of ball joint is created with the use of Revit software to simulate the installation process of the swivel ball joint,which can be applied to the site to guide the construction personnel to install and construct.The Timeliner module in Navisworks software is used to perform BIM-based progress management,and the Animator module is used to create full-bridge construction animation.Finally,the finite element calculation software Midas is used to simulate the main beam and pier of the rotating T-shaped structure.The deflection and stress of the T-construction in every construction stage is analyzed theoretically,the construction stages include full support cast in situt and support removal.The stress deflection at each construction stage meets the requirements through calculation and analysis.At last,the unbalance moment of T structure theory is calculated,and two kinds of counterweight schemes are put forward to guide the practical counterweight schemes.