Research On The Application Of BIM Technology In The Parametric Modeling And Alignment Control Of Steel Bridge

At present,the application of Building Information Modeling technology in China is also extensive.Although the national policy drive is constantly strengthened,the research and application of BIM technology are relatively disordered due to the lack of relevant standards and specifications in the industry,software platform development maturity and other reasons.Many of them stay at some basic application levels,such as basic theoretical research,visual display,simulated construction demonstration and collision check,while the real core functions of Building Information Modeling technology have not been studied and applied.In the field of infrastructure,model design and application started late and encountered various difficulties in the implementation in recent years.The implementation results hardly provided effective solutions to practical engineering problems.For the application of BIM Technology in the current stage of bridge engineering,the current mainstream technical solutions are the technical routes of autodek,bentely,Dassault and Tekla platforms,each platform has its own advantages and disadvantages for BIM Technology routes.In this paper,taking the main bridge section of a super major bridge in Foshan as the research object,combined with the characteristics of the project and the application requirements of the project,it is determined that BIM Technology Planning and implementation takes the refined design and prefabrication of steel box girder,the design parameters guide the construction linear control as the core application point,and puts forward the parametric model design process and data transfer method based on Autodesk platform,through inventor,Revit,dynamo software Finally,the parametric model is designed.Based on the model results and model parameters,control instructions can be generated based on inventor model data and data control can be carried out for the production and assembly of the project factory,and the Revit model data can be transferred to bentely platform and secondary development can be carried out based on Micro Station.The steel box girder installation monitoring database and data entry system can be built,and the on-site construction monitoring of the steel box girder can be realized by means of model data 。Based on the model parameters,the precision and error of steel box girder production,pre assembly and field installation are strictly controlled to meet the design linear requirements.At the same time,as the Building Information Modeling technology route involved in this paper focuses on solving the above tasks,the parameterization degree and accuracy of corresponding model components are relatively high,while the parameterization and accuracy of some model components are relatively low.Reinforcement model and subsidiary engineering model of concrete members are not considered in this study.