WHAT IS BUILDING INFORMATION MODELLING?

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1 WHAT IS BUILDING INFORMATION MODELLING? PADDY CONAGHAN Hoare Lea Chair CIBSE BIM Group

2 DEFINITION Building information modelling (BIM) is a process involving the generation and management of a digital representation of physical and functional characteristics of a facility. The resulting building information model becomes a shared knowledge resource to support decision-making about a facility from earliest conceptual stages, through design and construction, then through its operational life before its eventual demolition. WIKIPEDIA PHYSICAL ENTITY + EMBEDDED DATA SPACE SYSTEM EQUIPMENT ELEMENT CLASSIFICATION & LOCATION CONSTRUCTION & PERFORMANCE MAINTENANCE COST TIME (eg. lead-in. installation, etc;) Etc

3 BIM THE MIND MAP (12 MONTHS AGO ) THIS WAS THE ABRIDGED VERSION! A CROWDED LANDSCAPE! WITH MANY PLAYERS! BUT A LOT HAS HAPPENED SINCE!

4 BIM THE CHALLENGES ENTRY - in a difficult economic cycle UK HEVAC Manufacturers (January 2012) Do you have BIM models of your products? Yes No Consultants + Contractors (<75% of Respondants) 82% 18% 60% Informed NAVIGATING A PATH THROUGH IT The language and acronyms What software platform? (The Betamax vs VHS syndrome). INCONSISTENCY & DISCONNECTS WASTED EFFORT

5 BIM THE BENEFITS BIS BIM Strategy 2011 BUT MANY WERE ALREADY ENGAGED WITH BIM FOR OTHER REASONS EFFICIENCIES AT ALL STAGES (COST & TIME ADVANTAGES) GREATER ACCURACY (LESS WASTE) PROCESS REFORM Offsite manufacturing Operational feedback into design Cost & time modelling

6 Digital Prototyping / Spatial Coordination Collaboration / Supply Chain Integration Information. The I in BIM Descriptors/Cost/Time, etc; Consistency One version of the truth. Parametric.

7 BIM MATURITY Bew Richards diagram courtesy BIS BIM Strategy

8 BIM MATURITY LEVEL 2 (NOW) Managed 3D Environment held in separate BIM tools with attached data...[it] may utilise 4D programme data and 5D cost elements as well as feed operational systems LEVEL 3 (FUTURE) Fully open process and data integration enabled by web services....potentially employing concurrent engineering processes. Bew Richards diagram courtesy BIS BIM Strategy

9 LEVEL 2 BIM INFORMATION DELIVERY Courtesy BIS BIM Strategy INDUSTRY FOUNDATION CLASSES a standard for data formats CONSTRUCTION OPERATIONS BUILDING INFORMATION EXCHANGE a standard for organisation of data required for facilities ownership

10 HARMONISING MANY PLANS OF WORK - FOR BIM Information needed to inform decisions of the moment Decision Gateways

11 BIM AND THE PLAN OF WORK Further reading 3 rd Edition 2012 A good introduction to UK BIM practice

12 BIM COLLABORATION 5D Cost Info 4D Time Info Conceptual modelling Virtual construction Operational data All services modelled in 3D A B C D E F G H J K L M BRIEF Space planning in 3D Design model linked to schedules & calcs Fabrication & off site manufacture Asset data Thermal modelling / compliance 6D Asset Info

13 BIM CONTENT THAT S FIT FOR ITS STAGE OF DESIGN OBJECT REPRESENTATATION Identify maintenance / access - spatial requirements Add Connectors AEC (UK) BIM Standard Component Grading STAGE Parameters C - EARLY & SPACE Schedules PLANNING GENERIC WITH BASIC APPROX DIMENSIONS & LIMITED DATA STAGE E/F1 FINE SPACE PLANNING GENERIC WITH CLOSE DIMENSIONS & FULL SELECTION DATA Parameters & Schedules STAGE F2 FINAL SPACE PLANNING PROPRIETARY WITH FINAL DIMENSIONS & FULL EQUIPMENT DATA Parameters & Schedules

14 BIM CONTENT THAT S FIT FOR ITS STAGE OF DESIGN DATA HELD IN GENERIC BIM MODEL AT STAGE F1 BIM DOESN T ASK FOR MORE THAN WAS ALWAYS GOOD 3-D PRACTICE EXCEPT WITH BIM, DATA IS EMBEDDED IN THE SAME MODEL AS THE 3-D OBJECTS

15 BIM CONTENT COBie UK 2012 DATA REQUIREMENTS COBie LOOKS SCARY! BUT ALL OF THE INFORMATION IT AIMS TO COLLECT ALREADY EXISTS SOMEWHERE ON THE PROJECT. THE COMPLEXITY LIES IN DATA COLLECTION AND MANAGEMENT SIMPLIFYING DATA MANAGEMENT IS THE CIBSE BIM GROUP S CURRENT MISSION

16 LEVEL OF DETAIL (DATA DROP INFO) CIBSE BIM UPDATE CONFERENCE - WHAT IS BUILDING INFORMATION MODELLING? CIBSE BIM GROUPS WORK ON DATA MANAGEMENT USA VETERANS ASSOCIATION MASTER MATRIX FULL PROJECT LIFE CYCLE SPECIFICATION DATA TO BE PROVIDED AT LOD 3 PROJECT SPECIFIC INFORMATION

17 CIBSE BIM GROUPS WORK ON DATA MANAGEMENT VA S DATA FOR A PUMP GENERIC PROJECT SPECIFIC PRODUCT DATA PROPRIETARY FM

18 CIBSE BIM GROUPS WORK ON DATA MANAGEMENT VA S DATA FOR A PUMP SUPPOSE WE SPIN THE LOGIC? GENERIC HOW MANY PROJECT DATA FIELDS COULD BE POPULATED AUTOMATICALLY FROM PRODUCT INFORMATION? COULD PRODUCT DATA ALSO FEED INTO GENERIC DESIGN STAGES TO ENABLE EQUIPMENT SELECTION? PROJECT SPECIFIC DYNAMIC MODELLING? PRODUCT DATA COST AND TIME ANALYSIS? PROPRIETARY ALL THE ABOVE LOOKS POSSIBLE PROVIDED DATA FIELDS FOR EACH TYPE OF PRODUCT USE A COMMON TEMPLATE. FM

19 CIBSE DATA TEMPLATES ARE PRODUCT TYPE SPECIFIC SIT ALONGSIDE COBie / IFC DATA FIELDS AND CAN POPULATE THEM OPEN STANDARD FOR PRODUCT DATA PRESENTATION SOFTWARE PLATFORM INDEPENDENT REQUIRE NO BIM COMPETENCE TO COMPLETE REQUIRE MANUFACTURERS TO ADOPT STANDARD DATA FORMATS PRODUCT DATA NEEDS ONLY TO BE PRESENTED ONCE TO BE USABLE BY ALL Designers & modellers Installers & Contractors BIM Vendors & content -builders FM operators CAN BE PROVIDED ON MANUFACTURERS WEBSITES OR IN HOSTED LIBRARIES

20 CIBSE DATA TEMPLATES ONLY 20% OF BIM CONTENT IS PROVIDED BY MANUFACTURERS WHICH IS NOT SURPRISING - ONLY 20% OF MANUFACTURERS HAVE BIM CONTENT! UK HEVAC Manufacturers (January 2012) Do you have BIM models of your products? Yes No CAN THESE TEMPLATES SQUARE THE CIRCLE IN TIME? 82% 18%

21 END THANKS