IFC, what is IAI about?

1. IFC, what is IAI about? • Vision • To enable software interoperability in the AEC/FM industry. • Mission • To provide a universal basis for process improvement and information sharing in the construction and facilities management industries. • Deliverables • The key deliverable of the IAI is the IFC Object Model. The term ‘model’ in this case means that it provides a formal specification of requirements which can then be used by software authors to create the IFC compliant software applications.

2. IFC, who are participating? • Global • AEC/FM professionals • Software companies • Research Institutes • Governmental supported development programs • List: Graphisoft, Autodesk, Nemetschek, Microsoft, HOK, Kajima, London Underground, LBNL, Stanford ... 600 members • Vera, IT och Fastighed, Corenet, Construction Research Center,,,

3. IFC basedexchange • IFC

4. To Details From IFC, what is IAI about ? • Vision

5. Equipment Maintenance Facility Maintenance Building Services HVAC Design Repair and Renovation Property Management Structural Design Sale and rental activities Architectural Design Marketing 3D Modelling Visualisation IFC-modellens dækningsgrad • IFC does not standardize data structures in individual tasks, only the shared information IFC-model

6. ISO/PAS 16739 IFC, how is IFC structured?

7. IFC, how is IFC developed?

8. IFC, how is IFC developed?

9. IFC, how is IFC developed?

10. IFC, what can IFC do? Jeff Wix, IFC2x2 Foundation for AEC/FM Shape (explicit) Shape (extrusions) beams, columns, pipes, ducts, conduit, walls, etc. Shape (topology) line representations for pipe, duct, structural, etc. Building Elements wall, door, window, roof, stairs, etc. HVAC Equipment chillers, fans, pumps, boilers, coils, cooling towers, heaters, heat exchangers, etc..

11. IFC, what can IFC do? Electrical Elements transformers, motors, generators, switches, protective devices, power and communication outlets panels, cubicles Sanitary Elements WC’s, urinals, baths, bidets, traps gulleys Fire Protection Elements sprinklers, hose reels, hydrants, wet/dry rising mains Furniture inc. system furniture Relations Between Elements holes, chases, voids, zones

12. IFC, what can IFC do? Space and Space Structure space, building storey, building part, building, site Zones, compartments fire, workstation Systems piping, ducting, cable, structural Lighting rendering and lighting, light sources, rendering material reflections and textures Manholes manholes, inspection chambers, access chambers, meter chambers, valve chambers

13. IFC, what can IFC do? Structural analysis: structural members, boundary conditions, connections, supports, loads, etc. Structural Elements members, profiles, rebars, properties, joints, features, surface Controls, Instruments sensor, actuator, controller, gauge, meter Grids 2D/3D grid structures assignment of elements to grids Draughting annotations on model space, line types, text, symbols, hatches, dimension lines

14. IFC, what can IFC do? Asset Management maintenance history, inventories Move Management Environmental Impact embodied energy, CO2 Help request, action, permit, warranty, operation

15. IFC, what can IFC do? Time Series time related events Constraints rules, specifications, requirements trigger conditions Holes and Bases holes, sleeves, packing, framing, upstands, vibration isolation Brackets and Fasteners brackets, drop rods, steel sections, bracket assemblies, screws, bolts etc.

16. £ $ Abcd afrgf aahds jhiuhg reeiuh Hfije ewku ijijij jhdfhb O/Nr A1263 2xAbcd £ 26 3xafrgf £ 42 1xaahds £685 4xjhiu £421 30 IFC, what can IFC do? Actors people, organizations, org. structure, addresses Costing objects, cost planning, estimates, budgets Work Plans and Schedules inc. nested schedules, resource allocation Orders work orders, change orders, purchase orders

17. 2xAbcd £ 26 3xafrgf £ 42 1xaahds £685 4xjhiu £421 OCCS Uniclass O/Nr A1263 2xAbcd £ 26 3xafrgf £ 42 1xaahds £685 4xjhiu £421 IFC, what can IFC do? External Data Classification Associated Documents Connectivity services, structure, building

18. IFC, how are they implemented? Express definition IFC Express definition from IAI DevelopToolkit Data i IFC format IFC InputToolkit Map-ping Map-ping OutputToolkit IFC Program IFC IFC InputToolkit OutputToolkit Program IFC IFC Program

19. IFC, how are they implemented? Express definition Data i IFC format Early binding IFC IFC InputToolkit Map-ping Map-ping OutputToolkit IFCschema Program IFCschema Late binding IFC schema IFC schema IFC IFC Map-ping Map-ping Program Input Toolkit Output Toolkit

20. IFC, how are they implemented? View 1 • Views View 2 IFC Schema View 3 IFC R1.5.1 CAD View IFC R2.0 Client briefing/space planning  Architectural design Architectural design  Quantities take off / cost estimation Architectural design  Thermal load calculations / HVAC system design HVAC design  Architectural design HVAC design  Quantities take off / cost estimating CAD View

21. IFC, how are they implemented? • Or via XML

22. IFC2x – CertificationView Definitions • Coordination view • BREPS • Parametric Geometry • Surface model (= open BREP) • MappedRepresentations • All subtypes of type ifcElement • All subtypes of spacial structure for logical purpose  • Parameters • Swept geometry • Shape parameters of the elements • Spaces with geometry • BREP and open shell is always the fall back geometry • GUID • Representation ofbuilding service IFC2x Viewdefinitions www.iai.fhm.edu

23. IFC2x – CertificationView Definitions

24. IFC2x – Certification

25. Widespread fields of application

26. FZK – Storey Viewer

32. IFC 2x2 Electrical model Snapshot from DDS Electro Partner

33. IFC 2x2 Electrical model Snapshot from Nemetchek Allplan FT

34. IFC 2x2 Electrical model Snapshot from Autodesk ADT

35. IFC 2x2 Electrical model Snapshot from ArchiCad

38. Course:IT in the Building ProcessProduct models in practice - based on the IFC pilot project in connection to DR's new headquarter in Ørestad Jan Karlshøj CAD Manager, M.Sc,PhD Building and Transportation and Tele, RAMBØLL

39. Status of an IFC Pilot Project • Is it possible to achieve the vision of a total interoperable IT-environment in a construction project by using IFC? • No • But what can be achieved, and what are the alternatives? Background I have been active in IAI since 1996, and chaired the International Technical Management Committee between July 1999 and July 2001

40. What have been tested? • Building • Part of segment 1 of the new headquarter for the Danish Broad-casting Cooperation • 50,000 square meters • Total project • 100,000 square meters • 350 million US $ • Why this project • Carl Bro participates in the project • Scale matters • Interesting project • Too big ?

41. Software IFC 2.0 ArchiCAD Visio Solibri Model Checker RIUSKA Excel ConViewer IFC 1.5.1 Architectural Desktop Tools IFC Tree Viewer IFC to VRML converter What have been tested? • Exchange • Only by using IFC • Process • Used concurrently with the ordinary process • Why? • I don’t want to sign legal contracts or to use IFC in full scale, before we have tested the new process with real data

42. What have been tested? • Type of objects: • Wall • Column • Beam • Slab • Window • Door • Hierarchy • Site • Building • Floor • Space • Roles • But not • HVAC, electrical, structural model, requirements, financial information, maintenance etc.

43. So, how did the testsgo? • Exchange • Many things worked • Basic geometry • Types • Some attributes • (Different concepts in different software product) • Basic limitations of the software • Only handle bounding box geometry • Only handle 2½D geometry • Only handle spaces of the same storey

44. So, how did the testsgo? • Limitations in IFC implementations • Support only specific views • Support only IFC import/export for some components • Do not support features in IFC like openings in slab(has anybody ever heard about an elevator or a pipe?) IFC ERROR: Kun åbninger i vægge understøttes på nuværende tidspunkt! IFC ERROR: At the moment only openings in walls are supported!

45. So, how did the testsgo? • One common building model? • Walls as one object per layer or one per wall • Some applications prefer ”tall” walls, whereas others only display walls on the storey they belong to • Again some applications support voids within a space, others do not One BuildingModel Domain specific Models ?

46. So, how did the testsgo? • Reaction from software companies • From very good feedback • To very low of feedback • Looks like the business model is very important in this matter

47. So, how did the test go? • Users • Find the people who understand the use of models, instead of traditional documents like: drawings and specifications • Willing to try a new approach • Be ready to be a beta tester

48. Participants • Active participants • Engineering College of Copenhagen • School of Architecture in Aarhus • Byggeinformatik • Carl Bro • Advisory Group • Danish Broadcasting Cooperation • Cowi • Vilhelm Lauritzen, Architects • PLH, Architect • Ministry of Education financed the work carried out by the College and Architectural school (50,000 US $

49. Compared to the “real” project Status • 2D CAD-drawings • in production: demand to use 2D-files • Few CAD-models • 3D geometry for parts of the model • Simulations • CFD, Bsim, Radiance, GTStrudl • But at lot of • Documents (Word and Excel) • Few databases • Start to use a common Document management system for approved documents • Visualization • Cave at the construction site?

50. Conclusion • IFC goes beyond what is supported by most applications • IFC can be used, but for a broader acceptance improvements have to be made • Implementation • Guidelines • Training material • (Model Extensions) • One unified model can not fulfil all the requirements at the moment • Data Management and legal aspects have to be investigated further