Building Information Modelling BIM. John Sands BSRIA

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1 Building Information Modelling BIM John Sands BSRIA

2 BIM DON T PANIC! The built environment experts 2 2

3 What is BIM? The built environment experts 3 3

4 Wikipedia: Building information modelling (BIM) is a process involving the generation and management of digital representations of physical and functional characteristics of a facility. The resulting building information models become shared knowledge resources to support decisionmaking about a facility from earliest conceptual stages, through design and construction, through its operational life and eventual demolition. The built environment experts 4 4

5 There are many definitions of what BIM is, but at its core BIM is: a managed approach to the collection and exploitation of information across a project. The built environment experts 5 5

6 So why all the fuss now? The built environment experts 6 6

7 A report for the Government Construction Client Group Building Information Modelling (BIM) Working Party Strategy Paper March 2011 The built environment experts 7 7

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10 2.32 Government will require fully collaborative 3D BIM (with all project and asset information, documentation and data being electronic) as a minimum by The built environment experts 10 10

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12 Levels of maturity Level 2 Managed 3D environment held in separate discipline BIM tools with attached data. The built environment experts 12 12

13 Decisions are made at key stages in the procurement/operation process Provide the right level of information to help inform decision making The level of information grows as the project progresses The built environment experts 13 13

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15 Recent developments Large document issue on 28 th February 2013 PAS :2013 Specification for information management for the capital/delivery phase of construction projects using building information modelling The built environment experts 15 15

16 Introduction Background and context of PAS PAS provides specific guidance for the information management requirements associated with projects delivered using BIM. Not all information on a project will be originated, exchanged or managed in a BIM format. This information will also need to be managed in a consistent and structured way to enable efficient and accurate information exchange. BS 1192:2007 provides details of the standards and processes that should be adopted to deliver these outcomes. Only information exchanges specific to BIM are described in this PAS. It is assumed for the purposes of this standard that non-bim information exchanges between principle supplier and employer within the supply chain will be managed using equivalent information management standards. Furthermore, and for the avoidance of doubt, all project information, whether in BIM environments or in conventional data formats should be shared using a single collaborative data environment (CDE). The built environment experts 16 16

17 Recent developments Large document issue on 28 th February 2013 BUILDING INFORMATION MODEL (BIM) PROTOCOL The Protocol identifies the Building Information Models that are required to be produced by members of the Project Team and puts into place specific obligations, liabilities and associated limitations on the use of the models. The Protocol can also be used by clients to require the adoption of particular ways of working such as the adoption of a common naming standard. The built environment experts 17 17

18 Recent developments Large document issue on 28 th February 2013 BEST PRACTICE CODE FOR PROFESSIONAL INDEMNITY INSURANCE WHEN USING BUILDING INFORMATION MODELS The built environment experts 18 18

19 Recent developments Large document issue on 28 th February 2013 OUTLINE SCOPE OF SERVICES FOR THE ROLE OF INFORMATION MANAGEMENT The built environment experts 19 19

20 Recent developments Large document issue on 28 th February 2013 Building Information Modelling The Digital Plan of Work & Assemblies describes the methods needed for clients to procure data from the supply chain for very specialist users and to check it has been delivered. example tool, demand matrices and validation tools to assist practical understanding and management of construction data The built environment experts 20 20

21 What is BIM? The built environment experts 21 21

22 Process for data management (BS 1192/PAS 1192) Tool to hold the data (BIM software model) Method of exchanging the data (COBie + other documents) The built environment experts 22 22

23 The first strand of BIM Process for data management (BS 1192/PAS 1192) The built environment experts 23 23

24 BS 1192:2007 Collaborative production of architectural, engineering and construction information Code of practice Building Information Management A Standard Framework and Guide to BS 1192 PAS :2013 Specification for information management for the capital/delivery phase of construction projects using building information modelling The built environment experts 24 24

25 Roles and responsibilities Method for organising/issuing documents/files/data File naming structure (currently in use for drawing numbering on many large projects) The built environment experts 25 25

26 File naming The built environment experts 26 26

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28 The second strand of BIM The tool to hold the data (the BIM software model) The built environment experts 28 28

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30 3D CAD v BIM 3D CAD model represents objects as a series of lines BIM software model represents objects as actual objects, with properties, values and attributes The built environment experts 30 30

31 What is a BIM model? A digital representation of the building/asset Allows data to be attached to objects/equipment Can see clashes easily Can produce detailed schedules Good for determining quantities and costs A BIM implementation plan is CRITICAL The built environment experts 31 31

32 BIM technologies The built environment experts 32 32

33 Wide range of software products Range of costs free to 9k Range of features and capabilities Ensure the software selected can meet the output requirements The built environment experts 33 33

34 What is a BIM? Embedded information (the i in BIM)

35 What can be included in the BIM? Family parameters can be used to populate schedules. Changes to schedules will update parameters which drive family geometry or viceversa. The built environment experts 35 35

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37 Spaces The built environment experts 37 37

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39 What can be included in the BIM? Information from architectural model Information from MEP model for design checks Occupancy / internal gains Manual calculations / rules of thumb / design margins Thermal modelling results The built environment experts 39 39

40 What s not in the model The built environment experts 40 40

41 Correspondence Feasibility studies Site survey reports Technical specifications Contract conditions/forms of contract Design calculations Manufacturer s data Quotations Tender documentation The built environment experts 41 41

42 The third strand of BIM Method of exchanging data (COBie + other documents) The built environment experts 42 42

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44 COBie Construction Operations Building Information Exchange The built environment experts 44 44

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46 COBie Construction Operations Building Information Exchange Currently approximately 700 spreadsheets Expected that software will automatically populate COBie spreadsheets Other forms of output required drawings, schedules, specifications, etc. The built environment experts 46 46

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50 Summary BIM is a process Added efficiency in data management Better in use data management to assist all project phases Better information for decisions on later works extension or refurbishment The built environment experts 50 50