| Metro comprehensive pipeline is an important part of urban underground rail transit construction,which contains wind,water,electricity,HVAC and more fields.It involved more fields and the different of field needs,which caused the difficulties of collaborative design,low design efficiency and frequent rework in later construction.These are for engineering construction management and the late maintenance bring great challenges.BIM is a new technology in the field of computer aided design in recent years.The core idea of BIM is completely digital construction,which provides a new way for solving these problems.In this paper,the BIM technology is used in the design phase of metro comprehensive pipeline,the key technology of collaborative design for metro comprehensive pipeline is studied,the main work is as follows:1,The IFC data organization of metro comprehensive pipeline is studied based on IFC(Industry Foundation Classes)data standards.The data classification method in collaborative design is proposed,which effectively solves the problem that the data quantity is too large in data exchange,and improves the efficiency of data sharing in the collaborative design.2,Compared with the traditional design mode,a RBAC(Role-Based-Access-Control)collaborative design access control method is proposed based on the theory of access control in computer information security,and the corresponding role permissions are designed,which meets the requirements of the model control of the professional personnel in the design stage.3,Through the research on the modeling platform and the secondary development technology of collaborative design and analysis of access control requirements,the access control method is realized on the Revit platform by using C#,the feasibility of the method is verified in the project.The result of this paper provides a new idea and reference for research on collaborative design and construction mechanisms in the whole life cycle management. |
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