BSRIA Guide BG6 Why, What, How?

Transcription

1 BSRIA Guide BG6 Why, What, How? Martin Ronceray BSRIA Principal Consultant in Construction process 21 March

2 1994 TN8 A bit of history on BG BG6 (1 st ) 2012 BG6 (3 rd ) 2018 BG6 (5 th ) 1997 TN21 TN BG6 (2 nd ) 2014 BG6 (4 th ) Allocation of Design Responsibilities a code of conduct to avoid conflict Allocation of Design Responsibilities + example drawings A Design Framework for Building Services 2

3 BSRIA Guide BG6 Client Purpose Structure Activities Consultant Contractor Pro-formas Deliverables Lead Support Drawings Process B A C 3

4 BG6 Purpose Details of limitations not always explicit in contracts in specifications in drawings Several parties (stakeholders) involved at different time during the project Different deliverables 4

5 BG6 Purpose Enable more profitable project delivery Greater clarity of each designer s role Reduced conflict within the project team How Why Team design deliverables from each project stage Tighter definition of who designs what Defining who produces which drawing 5

6 BSRIA Guide BG6 Client Purpose Structure Activities Consultant Contractor Pro-formas Deliverables Lead Support Drawings 6

7 BG6 Structure Alignment with stages of RIBA PoW Broadly in line with ACE Sched. of Serv. Focus on MEP aspects Publication Front-end sections Appendices 7

8 BG6 Structure Front-end sections Design process on building projects Design coordination of building services Building Information Modelling (BIM) Level of details and information (LOD/LOI) Contractors designed portion (CDP) Process of using BG6 8

9 BG6 Structure Appendices Appendix A Pro-formas Definitions Illustrations Appendix B 9

10 BG6 Structure Appendix A Pro-formas One pro-forma for each stage Pro-forma acts as checklist for design activities Segmentation of activities General obligations Client and team liaisons Plant & specialist design MEP designs Commissioning Deliverables 10

11 BG6 Structure Appendix A Definitions Definitions for the illustrations Concept, Developed, Technical, Installation, Builders work, Manufacturers, As-built Based on outcome to be shown Typical use at the stage 11

12 BG6 Structure Appendix A Illustrations 3D views from a model Plant room and distribution Layout drawings MEP services Schematic drawings Mechanical and electrical 12

13 BG6 Structure Appendix B Allocating information production Link with pro-formas to identify deliverables Non-exhaustive list of deliverables illustrations (models, drawings) information (specifications, reports) 13

14 BG6 Structure Appendix B Matrix of deliverables List of stages List of services List of who is responsible to deliver what and when 14

15 BSRIA Guide BG6 Client Purpose Structure Activities Consultant Contractor Pro-formas Deliverables Lead Support Drawings Process B A C 15

16 BG6 Process Step 1 Complete pro-formas in Appendix A 16

17 BG6 Process Appendix A Pro-formas Complete the pro-forma for each required stage Identify the party who is going to undertake each design activity Allocate responsibility per party Lead/Review/Support but only one lead/activity Add comments to clarify the scope Remove activities not relevant to the project Additional activities at the end of the pro-forma 17

18 BG6 Process Step 2 Complete associated matrix in Appendix B 18

19 BG6 Process Appendix B Decide which illustrations and other deliverables are required Decide which engineering services are included in the project Assign the name of the team member who will be delivering them Add programme dates to produce a task information delivery plan (BIM Level 2) 19

20 BG6 Process Step 3 Issue the completed pro-formas as part of the contractual requirements Step 4 Review and update Appendix B as deliverables are issued by the project team 20

21 BG6 4 th to 5 th edition Needs for Changes Sub-divisions of Stages 3 and 4 creating confusions Illustrations for MEP services Appendix B (deliverables list) not used much 21

22 BG6 4 th to 5 th edition Stage sub-divisions Co-ordination of services within delivered outputs were sub-divided at Stage 3a, 3b and Stage 4a, 4b, 4c for handover points 22

23 BG6 4 th to 5 th edition Stage sub-divisions However hybrid of these sub-divisions have been used in the procurement market place Stage 4a+ deliver a more developed design Stage 4b- deliver a quite co-ordinated design with some known components Stage 4b+ deliver an almost co-ordinated design with procured plant and components Stage 4c- deliver a co-ordinated design with almost all specialist details 23

24 BG6 4 th to 5 th edition Stage sub-divisions In 5 th edition sub-divisions removed Stage 3 stands as only one stage Stage 4 stands as only one (long) stage with technical design division Feasible design using generic objects Coordinated design using generic objects Coordinated design using specific objects New Appendix C to present examples 24

25 BG6 4 th to 5 th edition New Appendix C Examples for different design responsibility scenarios Aim at presenting some particularities in the pro-formas when consultant and contractor have to interact Some variations when the consultant is appointed by the client or by the main contractor 25

26 BG6 4 th to 5 th edition New Appendix C Example 1 26

27 BG6 4 th to 5 th edition New Appendix C Example 1 MEP consultant (lead) 27

28 BG6 4 th to 5 th edition Illustrations for MEP services Views revised in line with updated definitions Addition of public health services Additional example on electrical services 28

29 BG6 4 th to 5 th edition Appendix B Moved to digital version only Include all deliverables: illustration and other documents Comprehensive matrix of deliverables 29

30 BG6 5 th edition Finalisation and production in the coming months Aim to be published late Spring 30