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

doi:10.11996/JG.j.2095-302X.2023020357

Abstract

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:

TP391

HE Qing, JING Chuan-yu, GAO Tian-ci, WANG Ping. Research on BIM model of railway track structure based on IFC standard extension[J]. Journal of Graphics, 2023, 44(2): 357-367.

Figures/Tables 15

References 20

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父类零件	子类零件	IFC实体
钢轨接头 (IfcTrackRail Joint)	夹板	IfcSplint
	轨端绝缘垫片	IfcRailEndInsulationGasket
	夹板绝缘垫片	IfcSplintInsulationGasket
钢轨加强设备 (IfcTrack Strengthening Equipment)	紧固件	IfcFanstener
	防爬器	IfcAntiCreeper
	防爬支撑	IfcAntiClimbingSupport
	轨距杆	IfcTrackBar
	轨枕间密封条	IfcSleeperSeal
	伸缩缝	IfcExpansionJoint
钢轨附属设备 (IfcTrack Accessory Equipment)	一体化抬轨器	IfcIntegratedRailLifter
	钢轨伸缩调节器	IfcRailExpansionAdjuster
	钢弹簧减震器	IfcSpringVibrationIsolator
	减振垫	IfcBumperBeam
	吸音板	IfcAbatvoix
	涂油器	IfcOil
	过渡轨	IfcTransitionTrack
	护轮轨	IfcGuardRail
	挡砟块	IfcBallastBlock

父类零件	子类零件	IFC实体
钢轨接头 (IfcTrackRail Joint)	夹板	IfcSplint
	轨端绝缘垫片	IfcRailEndInsulationGasket
	夹板绝缘垫片	IfcSplintInsulationGasket
钢轨加强设备 (IfcTrack Strengthening Equipment)	紧固件	IfcFanstener
	防爬器	IfcAntiCreeper
	防爬支撑	IfcAntiClimbingSupport
	轨距杆	IfcTrackBar
	轨枕间密封条	IfcSleeperSeal
	伸缩缝	IfcExpansionJoint
钢轨附属设备 (IfcTrack Accessory Equipment)	一体化抬轨器	IfcIntegratedRailLifter
	钢轨伸缩调节器	IfcRailExpansionAdjuster
	钢弹簧减震器	IfcSpringVibrationIsolator
	减振垫	IfcBumperBeam
	吸音板	IfcAbatvoix
	涂油器	IfcOil
	过渡轨	IfcTransitionTrack
	护轮轨	IfcGuardRail
	挡砟块	IfcBallastBlock

名称	IfcTrackSleeperType
类型	TYPE IfcTrackSleeperTypeEnum = ENUMERATION OF ( CONCRETESLEEPER, 混凝土枕 WOODENSLEEPER, 木枕 STEELSLEEPER, 钢枕 BROADSLEEPER, 宽枕 ELASTICSLEEPER, 弹性轨枕 USERDEFINED, 用户自定义 NOTDEFINED); 未定义
结束	END_TYPE

名称	IfcTrackSleeperType
类型	TYPE IfcTrackSleeperTypeEnum = ENUMERATION OF ( CONCRETESLEEPER, 混凝土枕 WOODENSLEEPER, 木枕 STEELSLEEPER, 钢枕 BROADSLEEPER, 宽枕 ELASTICSLEEPER, 弹性轨枕 USERDEFINED, 用户自定义 NOTDEFINED); 未定义
结束	END_TYPE

名称	IfcTrackSleeper
开始	ENTITY IfcTrackSleeper
属性	SUBTYPE OF (IfcTrackElement); PredefinedType OPTIONAL IfcTrackSleeperTypeEnum
约束	WHERE CorrectPredefinedType : NOT(EXISTS(PredefinedType))OR (PredefinedType < > IfcTrackSleeperTypeEnum USERDEFINED)OR((PredefinedType = IfcTrackSleeper TypeEnum.USERDEFINED) AND EXISTS (SELF\IfcObject .ObjectType));CorrectTypeAssigned : (SIZEOF(IsTypedBy) =0)OR('IFCRAILDOMAIN.IfcTrackSleeperType' INTYPEOF (SELF\IfcObject.IsTypedBy[1].RelatingType))
结束	END_ENTITY