Application Of BIM Technology In Fabricated Steel Structure

With the development of economy and society and the advancement of science and technology,a number of public buildings with beautiful appearance,novel design and complex structure have emerged,and traditional construction techniques have been greatly impacted.In order to meet the needs of the development of the construction industry,BIM(Building Information Modeling)emerged.This paper takes the Gymnasium project of Tarim University as an engineering example.With the help of BIM technology,the CAD drawings of the gymnasium building,structure and machinery(water supply and drainage,HVAC,electrical)are modeled,and the steel structure installation plan and the roof grid construction plan are formulated.Perform animation simulation,complete the optimization of the scheme,and further explore the application of BIM technology in the construction of complex prefabricated steel structure projects.The main contents of this study include:(1)The application characteristics of BIM technology in the construction stage of prefabricated buildings are analyzed.According to the architectural characteristics of Tarim University Gymnasium,the steel structure model is established with the help of BIM technology,and the detailed structure and node information of the steel structure are completed in the BIM information model.The guidance of hoisting reflects the huge advantages of BIM technology in complex steel structures,and highlights the visualization and simulation characteristics of BIM technology.(2)According to the actual selection of the steel structure installation plan on site,the main steel structure adopts the sectional hoisting method;the roof grid adopts the jacking installation method;the steel box-shaped inclined columns with camber angles of 81° and 67° adopt the hoisting cost of 2.7816 million yuan.Compared with the cost saving of construction measures,5.7412 million yuan.(3)Aiming at the problems of technical difficulties and safety risks in the actual construction of the steel roof grid of the gymnasium,3D3 S software is used to check the strength,overall stability and stiffness of the grid support bracket to ensure the construction safety of the grid lifting.(4)The model created by Revit software is integrated in the Navisworks platform,and the collision detection between the building structure and the pipeline is carried out on the integrated model in the Clash Detective module,and the collided pipeline is adjusted according to the comprehensive adjustment principle of the pipeline;the construction is combined in the Time Liner module.The progress bar chart forms a 4D real-time construction model(3D + construction progress),generates a simulation animation of the construction plan,improves the construction efficiency of the steel structure hoisting,and achieves the goals of cost,quality and progress control,thereby improving the efficiency of the entire construction stage.