| With the rapid development of social economy and the gradual improvement of people’s living standards,the existing urban road construction is difficult to match the growth rate of private cars,and the travel problem is becoming increasingly serious.Therefore,it is imperative to build large-scale transportation terminal that includes subway,train,airport and automobile.Due to the development of the land,vacant space is little,many large-scale transportation terminals must expand underground,which will lead to more complex mechanical and electrical systems to be installed in the limited space,existing technology is difficult to meet the needs of large-scale underground construction,so we need more effective way to help project construction.Building Information Modeling is a project information management method applied to the all life-cycle of a project.By establishing a three-dimensional model of the building,the visualization and collision detection of the project can be realized,to solve the complex and difficult problems of electromechanical pipeline construction in large projects,reduce design changes and improve the construction efficiency of project.This paper is the application research of BIM technology in the design process of large-scale transportation terminals.Firstly,the status quo of BIM technology at home and abroad and its advantages and disadvantages in the mechanical and electrical installation process of the project are summarized.Secondly,the rules and processes of BIM model construction are described with the underground railway station as the background of the project.Revit software is used to build the mechanical and electrical model of the project.Finally,Navisworks is used to conduct collision analysis on the mechanical and electrical pipeline on this model,and it is optimized according to the deepening principle of mechanical and electrical pipeline.Through the modeling results,it can be found that through the application of BIM technology,a large number of pipeline collision problems in two-dimensional drawings in the design process can be found and solved in a timely manner,and the problems of rework and material waste in the construction process can be reduced.It provides guidance for the design and construction of large underground traffic buildings. |