Development Concept of IfcBridge Extension in Korea 2016. 3. 9

1. Extension Concept of IfcRoad & IfcBridge Target, Scope and Level of IfcRoad Extension In Scope Out of Scope Target Level View Usecase Road Facilities : Road, Drainage, Subsidiary Facilities Detailed Design Phase Geometry Shape Representation of Object, Components and Basic Attributes Delivering 3D Design Data to Government (National Road Authority of Korea) Architecture/Mechanical/Electrical/Communication/Landscape Planning, Construction, Maintenance - Structural Analysis etc.

1. Extension Concept of IfcRoad & Bridge Extension Standards (1/2) Classification Basis of Entities to be Extended a. Analysis of Common WBS in Road Projects b. Analysis of Hierarchical Structure in IFC Both of two are including a similar hierarchical structure Space, Physical Facilities/Elements (Civil Element), Facility/Element Type (Civil Element Type), Parts/Components, Materials etc.

1. Extension Concept of IfcRoad & Bridge Extension Standards (2/2) Components/Parts/Materials (Resource Layer) : Addition to Common and Architectural Class in Current IFC4 Space/Physical Facilities/Elements : Only for Civil Facilities (Linear Alignment/ Topography Space, Civil Facilities/Elements) Pavement/ Subsidiary Facility : Define as Common Elements of Facilities within IFC schema to be extended for Road Structures (Civil Facilities) (Elements that All Facilities include commonly) Drainage Facility : Required Review If Distribution Entities for Architecture can be Shared with Drainages for Civil or not (Extension of Drainage for Architecture?) Definition Criteria of Schema Shape Entities/Attributes Reference Basis : Road Design Handbook, Road Design Standard, Road Geometrical Structure Design Guideline etc. Hierarchical Structure Definition Criteria : Common WBS (Work Breakdown Structure) for Road Projects Definition Criteria of Overall Entities : Reference Models (LandXML, JHDM etc.) + Hierarchy Definition Basis + Reference Material by Road Facility (2D Drawings, 3D Modeling S/W)

Infra BIM requirements 2. Approaches of IfcBridge Extension IfcBridge Extension Process Design Guide/Handbook Analysis Infra BIM Information Requirements Road Design Guide/ Handbook Terminology Dictionary, WBS I F C A N L Y S s IFC 4 Analysis BIM Design S/W For Road & Bridge Detailed Elements Extraction (Alignment / Bridge Structure) Gap analysis between Infra BIM requirements and IFC 4 Drawings, Statements QTO Table Schedule Reference Data Analysis IFC core Extension IFC core-based Infra BIM Schema Reference Model Analysis BIM Library Infra BIM Specification GIS Mapping Model Analysis <Discussion on the IFC Structure Extension Method> <Top level Extension of IFC– Space, Structures/Elements>

Steel Box(STB) Girder Type Bridge 2. Approaches of IfcBridge Extension Development Perspective : Common bridge elements extraction that can be utilized for diverse type of bridge without considering specific bridge types Element analysis of each detailed 2D & 3D drawings WBS Element Hierarchy Analysis(Common Bridge WBS) Floor slab Diaphragm Upper Flange Upper Flange Web plate Cross Beam Lower Flange Steel Cable PSC Beam Stiffener IPC Girder Type Bridge Steel Box(STB) Girder Type Bridge

2. Approaches of IfcBridge Extension Extenstion Process 1 2 3 4 Classification by considering activity unit of WBS for Road as an object Extraction of detailed element from detailed design drawings (1st Level Bridge in Korea : PSC Girder Bridge/ 2nd Level Bridge : STB Girder) Supplementation by analyzing road design standards Categorization of bridge entity schema based on IFC (Dr. Kim : Bridge+ France : Cable-stayed bridge) Completion of final bridge entities based 1,2,3 process Schema development by arranging entities on IFC core structure

2. Approaches of IfcBridge Extension Bridge Entity List

2. Approaches of IfcBridge Extension Bridge Entity Type List

IfcBridgeElement_K Extension 2. Approaches of IfcBridge Extension Structure of Bridge Element in IFC4 IfcBridgeElement_K Extension

2. Approaches of IfcBridge Extension Bridge : Express-G for IfcBridgeElement_K Defined by extending existing IFC types such as approach slab, chest wall, wing wall, and foundation etc.

2. Approaches of IfcBridge Extension 11 Pset List of Bridge : Basic Parameter Base

3. IfcBridge Verification IfcBridge Schema Verification by Converter and Viewer

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