BYUK - Housing London. T h e b u s i n e s s c a s e

Transcription

1 BYUK - Housing London B I M - T h e b u s i n e s s c a s e

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3 Bouygues - A diversified industrial group 3

4 Bouygues - brands operating in the UK 4

5 Bouygues - brands operating in the UK 5

6 BYUK - Housing London D&B Contracting division for Housing projects in London Contract range: 30M to 150M 130 housing specialists 20 Registered Providers (RP) framework agreements In-house Technical Department

7 BYUK - Housing London Design Management Structural design BYUK Technical Department M&E design & estimating Methods Programme Involvement from Preconstruction to Site construction. Construction support Estimating BIM Sustainability

8 Gascoigne Estate

9 Hallsville Quarter - Canning Town Centre

10 What is BIM? (bear with me ) Crawl Walk Run Cirque Du Soleil?

11 Defining BIM BIM Definition from PAS Process of designing, constructing or operating a building or infrastructure asset using electronic object-oriented information

12 3 Key Ingredients BIM

13 BIM Policy How can you help?

14 Case Study 1 Hallsville Quarter (phase 2 of 3) BIM Execution plan agreed (includes) - Project Coordinates/Setting out - Role of Lead Designer and other model authors - Role of BYUK - BIM Objectives : 1) Design Coordination 2) Visualisation & Communication 3) 2D information to be extracted from models 3) Methods Sequencing 4) Quantity Take off 5) Setting out directly from 3D Models 6) Scanning/Point Cloud comparison - as built checks

15 Enabling Collaborative Modelling The enabler = Geospatial alignment (e.g. using Shared Coordinates in Revit)

16 Collaborative Modelling (3D)

17 Design Coordination - reporting

18 Construction Planning/Sequencing (4D)

19 Construction Planning/Sequencing (4D)

20 Property Data in a model

21 Quantification (5D/QTO)

22 Quantification (5D/QTO) Quantification is most useful at an early stage but often the models are simply not created to sufficient detail to facilitate QTO and more critically due to the contractual landscape i.e. drawings govern there is inhibitive risk to using models solely for QTO (in this case the drawings were updated but the model was not reissued to tenderers)

23 Quantification (5D/QTO) Comparison below (between estimator (2D) and Navisworks Model QTO)

24 Setting out directly from a 3D Model.IFC File Format 3D Digital Model + Digital Layout Points: Leica Infinity Leica Captivate Workflow: Leica Exchange Cloud Solution to Captivate Controller Leica Robotic MultiStation

25 Setting out from the 3D Model From co-ordinated 3D Design to Setting out on site from the 3D model ensuring Dimensional Control is achieved and maintained

26 As built checks localised scans

27 Quality Checking as Built

28 Case Study 2 Gascoigne Estate BIM Execution plan agreed with consultants and subcontractors - Project Coordinates/Setting out - Role of Lead Designer - Role of BYUK - BIM Objectives : 1) Design Coordination 2) Visualisation & Communication 3) 2D information to be extracted from models 3) Methods Sequencing 4) Quantity Take off 5) Asset Data (COBie trial) 6) Scanning/Point Cloud comparison -as built

29 3D Design Federated model & reporting (BIMCollab)

30 3D Design Federated model & reporting (BIMCollab)

31 3D Design Federated model & reporting (BIMCollab)

32 Construction planning/sequencing (4D)

33 Construction planning/sequencing (4D)

34 Construction planning/sequencing (4D)

35 Construction planning/sequencing (4D)

36 Construction planning/sequencing (4D)

37 Construction planning/sequencing (4D)

38 Construction planning/sequencing (4D)

39 Quantification (QTO/5D)

40 Concrete Frame scanning

41 Concrete Frame scanning

42 Concrete Frame scanning The key catering for the lowest common denominator (2D CAD)

43 As Built Services/Builders work

44 Concrete Frame scanning

45 Concrete Frame scanning Laser scanning concrete frame (façade) to enable as built checking for Brick work support Notes have been added to Point 20 (BYUK project stage lessons learned) by the Senior Design Manager who was a key player in rolling this out on the project Process has enabled a stronger contractual position with the Brick Work Support subcontractor i.e. cost certainty The key catering for the lowest common denominator (2D CAD) We do not typically use scaffolding for our concrete frames so how can we survey our frame any other way and achieve a similar amount of data? It is our intention to bring these technologies to bear in a routine manner in the coming months and reduce the reliance on 3 rd party surveying companies, making quality checking using point cloud comparison what we do business as usual

46 COBie - essential to the UK BIM strategy. It is designed to transfer data from the design and construction phase through to facilities management CAFM systems. To facilitate the BIM initiative, the UK Government has released an array of BIM Management documents 1. PAS :2013 Specification for information management for the capital/delivery phase of construction projects using building information modelling (CAPEX) 2. PAS :2014 Specification for information management for the operational phase of assets using building information modelling (OPEX) 3. BS :2014 Fulfilling employers information exchange requirements using COBie Code of practice 4. PAS :2014 BIM and Security 5. Building Information Model (BIM) Protocol (CIC Documents) 6. GSL (Government Soft Landings) 7. dpow (Digital Plan of Works) 8. Classification System (Uniclass2015)

47 COBie is it too much to ask for?

48 COBie Trial (Asset Data/6D) Energy Centre - Asset Data (6D) Asset Data for Energy Centre (GDM & MEP Subcontractors to complete)

49 Shared parameters a workable short term solution?

50 Latest update on COBie/Asset data COBie/Asse Data Trials have been agreed for three ongoing BYUK Housing London Projects - Gascoigne Estate (East Thames/Barking & Dagenham) - Pontoon Dock (Grainger/Newham) - Lampton Road (Nottinghill/Hounslow) BYUK are investigating Co-builder (GoBIM) and Zutec amongst other tools to aid with this aspect.

51 Next Steps. Industry Groups running with baton received from the L2 BIM Task Group Experts sharing experiences and best practise from around the country and elsewhere - Engaging with Design consultants to work through realities of delivering via BIM - Engaging with Clients to better understand their requirements maximise value - Engaging with vendors to better understand what can be done

52 Next Steps. My question Currently as a main contractor we see Design consultants and especially sub contractors (with design responsibilities) augment their fees in relation to BIM Even provision of a 3D model is deemed a more costly undertaking. Is it fair to say that Clients can help by stipulating BIM related processes and deliverables? Namely: Coordinated as built model(s) and corresponding relevant asset data. Although this might lead to a higher upfront cost in the short term can this somehow be negated by a cost saving perhaps for maintenance/operation? (this is where I was going with the business case reference at the start)

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