Abstract:
Urban rail transit project is a huge complicated system engineering with the properties of multi-major, multi-role, multi-constraint, long period, and large investment. Building information modeling (BIM) is a very effective technology to achieve high efficiency, standardization, low cost, and comprehensive collaboration in urban rail transit. Firstly the complexity of urban rail transit construction is analyzed in detail. Then this work summarizes the state-of-the-art BIM technology and its applications. The four kinds of BIM application modes are presented, i.e., construction-oriented, collaborative design and analysis-oriented, commercial software platform-based, and open platform-based BIM engineering. After analyzing the research and application insufficiency, the three major challenges of BIM technology application in urban rail transit are proposed: the integration of large-scale model sharing throughout the life cycle, the BIM-based multi-major, multi-CAD/CAE software collaboration, the high-efficient, low-cost management and usage of massive engineering information throughout the life cycle. Finally, to solve the existing shortcomings, the major trends of BIM technology development in urban rail transit engineering are suggested as the following five aspects: the full life-cycle integrated collaborative management and the related platform, BIM-based multi-major forward collaborative design, specification design of BIM for intelligent construction and operation, IFC (industry foundation class)-based BIM expression and sharing, deep integration of BIM technology and informatization.