Welcome to Journal of Graphics share: 

Journal of Graphics ›› 2023, Vol. 44 ›› Issue (2): 357-367.DOI: 10.11996/JG.j.2095-302X.2023020357

• BIM/CIM • Previous Articles     Next Articles

Research on BIM model of railway track structure based on IFC standard extension

HE Qing1,2(), JING Chuan-yu1,2, GAO Tian-ci1,2, WANG Ping1,2()   

  1. 1. MOE Key Laboratory of High-speed Railway Engineering, Southwest Jiaotong University, Chengdu Sichuan 610031, China
    2. School of Civil Engineering, Southwest Jiaotong University, Chengdu Sichuan 610031, China
  • Received:2022-09-14 Accepted:2022-11-13 Online:2023-04-30 Published:2023-05-01
  • Contact: WANG Ping (1969-), professor, Ph.D. His main research interests cover design theory, method and evaluation technology of high speed railway turnout, track irregularity and dynamics. E-mail:wping@home.swjtu.edu.cn
  • About author:HE Qing (1982-), professor, Ph.D. His main research interests cover highway/railway intelligent route selection and BIM, traffic big data, analysis and management of track irregularity, rail damage detection and analysis research. E-mail:qhe@swjtu.edu.cn
  • Supported by:
    High-Speed Rail Joint Fund Key Projects(U1934214);General Projects of National Natural Science Foundation of China(51878576)

Abstract:

Building information modeling (BIM) technology plays a pivotal role in enhancing the engineering design level of the railway industry. One major challenge in applying BIM technology in the track design stage is how to make full use of its information modeling ability to realize the digital transmission of design information. To address this challenge, the industrial foundation class (IFC) standard was employed to integrate the track structure engineering information into the BIM model. However, given the lack of entity information in the domain layer of the IFC standard architecture, this paper proposed to extend and define the track field using entity extension and user-defined PESTs, thereby constructing the basic data architecture system of track structure. The entity extension included the extension of spatial structure unit, combination, component, and part, while the user-defined PESTs extended identity information, positioning information, and technical information. The new track entity and attribute set expression system was constructed by extending relational entities and combining them with the IFC standard expression mechanism. On this basis, a modeling method for the BIM model of track structure was further proposed. Finally, through a ballast-less track case, the practicability of the IFC expansion and modeling method was verified, demonstrating its practical engineering significance in improving the completeness and transitivity of BIM model information of track structure in the design stage.

Key words: building information modeling, track engineering, industry foundation classes, entity expansion, user-defined PESTs

CLC Number: