Research On Extraction And Transformation Of Steel Suspension Arch Bridge Information Based On BIM Model

With the vigorous promotion of building informatization,BIM has become a research hotspot in the construction industry.As the most profound technological revolution in the construction industry in recent years,the emergence of BIM technology is expected to solve the problem of low resource utilization in the construction industry.Because the development of bridge BIM technology started relatively late in China,the current BIM modeling software on the market cannot realize information sharing with bridge structure calculation software,which hinders the promotion and development of bridge BIM technology to a certain extent.Therefore,it is the research trend of BIM technology of Bridge to develop a model conversion interface between BIM modeling software and structural calculation software to realize the information sharing of bridge structure.Thesis takes the traditional steel suspension arch bridge as the research object,proposes the process of parametric modeling of the steel suspension arch bridge,and realizes a conversion method between the bridge BIM model and the finite element software ANSYS based on the Revit secondary development.The main research contents of thesis are as follows:(1)Consult relevant domestic and foreign literature and sort out the research status of BIM technology at home and abroad,and summarize the concept and characteristics of BIM technology.Compared the advantages and disadvantages of the BIM platform,Revit was selected as the BIM modeling software.Combining the characteristics of the bridge structure and the advantages of BIM technology,the value and significance of the application of BIM technology in bridge engineering are summarized.(2)Established the BIM parameterized component family library of steel suspender arch bridge to realize the rapid creation of the bridge BIM model,which embodies the advantages of the parametric design method in modeling.(3)A conversion method between the bridge BIM model and the structural calculation model based on the secondary development of Revit is proposed.The concept of Revit secondary development is explained,and the secondary development process and development tools are summarized.The conversion ideas and specific codes of the model are proposed,which realizes the conversion of the overall model and the partial model of the steel suspension arch bridge in Revit to the finite element software ANSYS.(4)The BIM model of the steel suspension arch bridge is simplified and converted into a structural calculation model,and the structural force analysis of the whole and part of the bridge is carried out to verify the feasibility of the model conversion method in thesis.Other applications of BIM technology on steel suspender arch bridge are listed,reflecting the application value of BIM technology of Bridge.