the nbs bim toolkit and digital plan of work
TRANSCRIPT
The NBS BIM Toolkit
The NBS BIM Toolkit
Introduction1. Dave Philp, BIM Task Group - The Level-2 BIM journey
2. Stephen Hamil, NBS - Digital plan of work
3. Steve Lockley, BIM Academy - Verification
1. The Level-2 BIM journey
2011
2015
How to traditionally describe construction data PLQ: How Many Legs Do I Have?
LOD
The focus brought about by the requirement
of the UK Government to mandate BIM
Level 2 BIM by 2016 has necessitated clarity
as to how data is:
• Defined,
• Tested
• Effectively used by both the supply chain
and the public client
The DPOW helps support how this new
‘digital’ data is procured at ‘Level 2’
enabling clear definitions of need to the
supply chain and use full data detailed to the
client for use.
ENSURE EVERYONE CAN PLAY THEIR PART (OPEN DATA)
The selected supply base supplying data upto the tier one who is responsible for itscoordination use and submission to theemployer must be employed consistently toensure data can be created and re-used,rather than repeatedly re-typed.
Clearly it is incumbent on the employer to only ask for information that is needed ateach stage of the project
The rate of this growth must be driven by theamount of information needed to answer each Key Client Question. Any more and we are incurring waste, any less and we cannot effectively answer the questions.
These questions are known as the ‘Plain Language’ Questions.
As the project progresses the data “Progressively Grows”
Key ‘anchors’ for the dPoW
Plain language questions
(PLQ’s) to inform key
client decisions
COBie Data
2D PDF’s
(Native models)
Plain
language
questions
(PLQ’s) to
inform key
client
decisions
Putting too much information into the model too
soon may restrict both the design and supply
chain options for others in the team and leads to
other forms of waste with the inherent costs
incurred by both the supplier and the client.
It also places constraints on the supply chain to
offer compliant alternative designs, offering better
asset or value performance.
DPOW = Goldilocks Principle
2. Digital plan of work
The Level-2 BIM package
How will the BIM Toolkit benefit those working within the level-2 BIM process?
Standards are freely available at - http://shop.bsigroup.com/BIM
Assessment and needProcurement
Post-contract award and mobilisation
Production
Maintenanceand use
Figure taken from PAS1192-2:2013 – Copyright Mervyn Richards
Assessment and need
Assessment and need
Assessment and need
Overview• Client determines their plain language questions
(determines the need)
• Client produces their employer’s information requirements(Required information to meet the needs as defined in PLQs)
• Information requirements aligned to the project stages
• This is part of the tender documentation
A collectionof projects
Information at a project level
Information at astage level
At the start of the project the client has not assembled their
team
At strategy/brief stage it is possible to
determine information needs
Template tasks can be modified, removed and
added to
These projects can be refined and reused on
future projects
Tasks and deliverables are assigned to roles prior to
the team being assembled
This information may be exported
Export to MS Excel for inclusion within the EIR
document (PDF)
…and export to IFC/COBie for digital
re-use
All information can exported and manipulated either in
buildingSMART or MS Excel format
At a basic level – it can easily be inserted into an MS Word EIR
Procurement
Procurement
Procurement
Overview• Bidders respond with their pre-contract BIM execution plan
• Proposed responsibility of bidders supply-chain is provided
• The client can compare these against their original information requirements
• Selection can take place
The proposed roles have been assigned
The proposed project team has
been addedEach item, at each stage has a party
responsible
The bidder
Export to MS Excel for inclusion within the BEP document (PDF)
…and export to IFC/COBie for digital
re-use
Pre-contract award and mobilisation
Post-contract award and mobilisation
Production
Production
Production
Overview• The federated Project Information Model begins to grow
• dPOW defines the what, the when and who
• Information exchanges between supply-chain
• Information delivery to the client as agreed in EIR
• Documented classification and data structure allows for verification
Moving into the design phases the team is now assembled and the information requirements
grow
Level of detail guidance can be defined for each deliverable
Level of information guidance can be defined for each deliverable
A definitions library of over 5,000 items across all construction disciplines will be provided
At concept stage – the operations phase should be considered
At the technical design stage more geometric detail is required
The level of information grows through the bandings too
LOI-6 contains the standard COBie properties for transfer to the asset management systems
The definitions library covers infrastructure in addition to
buildings
RICS were part of the core team and have provided classification
mappings to NRM1
Rules of measurementfrom RICS NRM1
Benchmark costsfrom RICS BCIS
Filter by Uniclass 2015 classification tables
At an early stage space requirements may be
specified
Classification – Uniclass 2015
Advanced search technology is used to take the complexity
away from classification
What hasbeen asked for
What hasbeen provided
Maintenance and in use
Maintenanceand use
- ID- ParentSpace- Level- Manufacturer- Model- ExpectedLife- O+M-Manual
Verification & Validation of BIM Submissions
Prof. Steve Lockley
Overview & Background
R&D funded by Innovate UK
Built on the xBIM platform
Open source toolkit for open BIM
Led by BIM Academy at Northumbria
Developed by the XbimTeam
Collaborative BIM development
Built on BuildingSmart data model – IFC
Community based, royalty free.
Objectives
Information Requirements
Development
Information Submission
Validation
Close the loop
Automate validation
Minimise error and misunderstanding
BIM platform neutral
IFC based
COBie compliant
Support widely used industry
classifications and properties
Open and extensible
Scope – Current phase
Verify that data required has been submitted
Integrated with the BIM Toolkit
Works across all project stages
Employers, design team and contractors
Handles Documents and BIMs
Understandable process
Built on Open Standards
110% COBie Structure
Two way IFC exchange
IFC -> COBie
COBie -> IFC
Computer
Human
COBie, IFC
COBieSubmission COBie, IFC
COBie Requirements
COBie, IFC
COBieSubmission COBie, IFC
COBie Requirements
COBie, IFC
COBieSubmission COBie, IFC
COBie Requirements
BIM Platform neutral
COBie, IFC
COBieSubmission COBie, IFC
COBie Requirements
COBie, IFC
COBieSubmission COBie, IFC
COBie Requirements
COBie, IFC
COBieSubmission COBie, IFC
COBie Requirements
COBie Requirements & Submission
COBie, IFC
COBieSubmission COBie, IFC
COBie Requirements
In-Cloud + In-House
COBie, IFC
COBieSubmission COBie, IFC
COBie Requirements
Simple Submission Report
COBie, IFC
COBieSubmission COBie, IFC
COBie Requirements
Community support needed
xBIM is an Open Platform• Royalty free, open source
Several key organisations actively engaged• 4Projects, NBS, AEC3, Metz Architects, eDocuments, B&ES
Designed and built on, and for, IFC• No Compatibility or portability issues
Construction & IT industry engagement welcomed
www.OpenBIM.orgwww.github.com/xBimTeam
Summary
The NBS BIM Toolkit
Summary1. A clear central strategy for information procurement
2. A free-to-use digital plan of work tool for UK Level-2 BIM
3. Verification of information using well-structured open data
The NBS BIM Toolkit
theNBS.com/Toolkit