building information modelling - hurley palmer flatt · simply put, bim level 0 is all about using...
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Building Information Modelling
BIM
B/555 Roadmap (2012 Update)
Design, Construction & Operational Data & Process Management for the Built Environment
Introduction
The purpose of this updated “Roadmap” is to document and describe the activities of the BSI B/555 committee (Design, modelling and data exchange) in the immediate past, current and future in support of delivering clear guidance to the UK industry dedicated to providing and operating built assets. It also supports the vision and mission statement of the committee in the reduction of whole life cost, risk, carbon and the timely delivery of buildings and infrastructure projects. The 2012 Update also incorporates the activities in support of the 2011 HMG BIM Strategy.
To illustrate the process a maturity model has been devised to ensure clear articulation of the standards and guidance notes, their relationship to each other and how they can be applied to projects and contracts in industry.
CAD
2D3D
BIMs
iB IM
AIM
BSIM
FIM
SIM
BRIM
CPIC
AVANTIBS 1192: 2007
User Guides CPIC , Avanti , BSI
ISO BIM
Drawings , lines arcs text etc. Models , , Collaboration
IFC
IDMIFD
Integrated , Interoperable Data
Life
cy
cle
Man
ag
em
ent
© 2008 / 12 Bew - Richards
Level 0 Level 1 Level 2 Level 3
objects
Standards
Guides
Classifications
Delivery
BS 1192: 2007
BS 1192:2 CAPEX
Building Information Management : inc Guide to BS1192
Guide 1 Guide 2 Guide 3
CPI Uniclass / CAWS
CPI / RIBA /ACE/CIBSE/ BSRIA Plan of work
Includes contractual and level of detail
Increase level of detail and content as lifecycle
knowledge grows
New classifications to assist lifecycle delivery
BS 7000: 4
BS 8541: 2 BS 8541:1:3:4
BS1192 :3 OPEX
IFC
IDM
IFD
PAS 1192:2
To simplify the description of technologies and ways of working, the concept of maturity “Levels” has been defined. The purpose of the maturity levels is to categorise types of technical and collaborative working to enable a concise description and understanding of the processes, tools and techniques to be used, thus allowing simple referencing as to where various documents should be applied.
1
Hurley Palmer Flatt understand Building Information Modelling (BIM) and have been working with digital representations of physical and functional facility characteristics for over a decade. We ensure client’s visions of building and service installations are realised in the early stages of the design process. The origins of BIM are routed within the process and infrastructure industries but first found their way into the building and construction industries in the mid 1980s with the introduction of Graphisofts Archicad package. This was effectively a tool that enabled architects and designers to model buildings in 3D.
It has taken the rest of the construction industry a while to catch up with this technology, but in the last decade the use of BIM technology has increased profoundly and is likely to be considered the norm in the near future, as the benefits are realised.
The release of the government’s construction strategy in May 2011 has helped push the use of the BIM process, requiring all public sector projects to utilise level 2 of the BIM process by 2016.
It is fair to say from an MEP engineering services perspective that the supply chain and contracting sectors need to make a conscious commitment in developments to fully leverage from a BIM philosophy and ultimately its capability.
Working in collaborationSimply put, BIM Level 0 is all about using the right tools – CAD.
At BIM Level 1, Hurley Palmer Flatt is committed to working smarter and harder in collaboration across all of its internal divisions using 2D and 3D models.
For BIM Level 2 and on a wider scale, Hurley Palmer Flatt are one of the industry’s leading building services design engineers. Trusted advisors who have attracted external project partners who in collaboration have collectively built robust building solutions by using industry standard tools on known technologies.
Integrated BIM (iBIM) is the next step and we are ready! We have tested our own internal pilot data system using Deltek and its SQL data server.
This allows us to capture manufacturer’s object information and present detailed object specifications linked to our design models. We are committed to supporting a wider iBIM deployment, as supply chain participation increases over the coming years.
BIM driversMany factors are driving a de facto standard for a best-in-class way of collaboratively working within one’s own environment, and more broadly working in conjunction with all project participants to deliver more intelligently and effectively.
» Economic pressures
» Reducing costs
» Government changes
» Client request
» Reducing site mistakes
» Developed technology
» Use of digital data
Further developments4D - time Virtual representation of project phasing and sequencing, Plant replacement strategy analysis CFD modelling.
5D - costs Costs allocated directly to design objects that generate analysis and the cost impact for changes.
6D - lifecycle managementEnsuring maximum value is achieved throughout the lifecycle of your asset.
Level 0 CAD - drawings, lines, arcs, text etc.
Level 1 2D / 3D - models, objects, local collaboration
Level 2 2D/3D - models, objects and data with full team collaboration
Level 3 Integrated BIM using single model with multiple users. Fully interoperable data exchange
Client gainsThere are clear gains to be had for clients who adopt a BIM approach for their property portfolio and research suggests these quantifiable gains are demonstrable:
» Up to 40% elimination of unbudgeted change
» Up to 80% reduction in time taken to generate a cost estimate
» Cost estimation accuracy within 3%
» Savings of up to 10% of the contract value through clash detections
» Up to 7% reduction in project time
Hurley Palmer Flatt BIM pathway
BSI/B555 Roadmap Model Design, Construction and Operational Data and Process Management for the Built Environment
Preparation Design Pre- Construction Construction Use R&D
A B C D E F G H J K L M
Appraisal Design brief Concept Design development
Technical design Production information
Tender documentation
Tender action
Mobilisation Construction to practical completition
Post practical completition
Modal maintenance
and development
» Advise client on purpose of BIM including benefits and implications. Agree level and extent of BIM including 4D (time)
» 5D (cost) and 6D (FM) following software assessment. Advise client on Integrated Team scope of service in totality and for each designer including requirements for specialists and appointment of a BIM Model Manager
» Define long-term responsibilities, including ownership of model
» Define BIM Inputs and Outputs and scope of post-occupancy evaluation (Soft Landings)
» Identify scope of and commission BIM surveys and investigation reports.
» Data drop 1
» BIM pre-start meeting.
» Initial model sharing with Design Team for strategic analysis and options appraisal
» BIM data used for environmental performance and area analysis.
» Identify key model elements (e.g. prefabricated component) and create concept level parametric objects for all major elements
» Enable design team access to BIM data
» Agree extent of performance specified work
» Data drop 2
» Data sharing and integration for design co-ordination and detailed analysis including data links between models
» Integration / development of generic / bespoke design components
» BIM data used for environmental performance and area analysis
» Data sharing for design co-ordination, technical analysis and addition of specification data
» Export data for Planning Application
» 4D and / or 5D assessment
» Data drop 3
» Export data for Building Control analysis.
» Data sharing for conclusion of design co-ordination and detailed analysis with subcontractors
» Detailed modelling, integration and analysis
» Create production level parametric objects for all major elements (where appropriate and information exists this may be based on tier 2 supplier’s information)
» Embed specification to model
» Final review and sign off of model
» Enable access to BIM model to contractor(s)
» Integration of subcontractor performance specified work model information into BIM model data
» Review construction sequencing (4D) with contractor
» Data drop 4
» Agree timing and scope of ‘Soft Landings’
» Co-ordinate and release of ‘End of Construction’ BIM record model data
» Use of 4D / 5D BIM data for contract administration purposes
» Data drop 5
» FM BIM model data issued as asset changes are made
» Study of parametric object information contained within BIM model data
» Data drop 6
Hurley Palmer Flatt BIM
Strategy step 1
Hurley Palmer Flatt
BIM Strategy step 2
& 3
Hurley Palmer Flatt BIM
Strategy step 4 & 5 /////////////// Hurley Palmer Flatt BIM
Strategy step 6
Hurley Palmer Flatt MEP BIM Overlay to the RIBA StagesMay 2012 version - Undergoing change for 2013 to further integrate with CIC proposals.
INTRODUCTION TO THE WORK STAGES
At Hurley Palmer Flatt we have traditionally worked within the RIBA and ACE work stages when delivering our services for clients.
Since the release of the RIBA work stages (May 2012), which now incorporate the architectural BIM work activities. We have looked at the synergy with our own BIM work activities and demonstrated above where we fit into the life of the model, and reflected in our BIM activity work steps 1-6 overleaf.
We believe this level of service delivery will ensure a fully collaborated design, with the appropriate level of energy monitoring and feedback.
Furthermore, we are aware that RIBA are looking to collaborate more with the wider construction audience in relation to workflows, and our strategy will be adjusted to suit this deliverable once completed.
Source: BIM Overlay to the RIBA Outline Plan of Work - RIBA
‘We have looked at the synergy with our own BIM work activities and demonstrated above where we fit into the life of the model’
STEP 1 APPRAISAL » Engage with the BIM team and contribute
to the client
» Discuss and agree level of BIM to be used
» Discuss and agree how hpf will integrate with the master model.
» Discuss and advise the technical software that hpf intend to use
» Advise any specific BIM surveys required from the engineering services perspective.
STEP 2 DUE DILIGENCE » Review model produced by the Architect
and advise any quick wins
» Carry out high level environmental analysis using IES technical software model using data provided by the Architect to build thermal model and inform any further adjustments to maximise energy and carbon reduction benefits.
» Review any prefabrication opportunities for the engineering services
» Review and agree with the BIM team, extent of performance specified elements of the engineering services.
STEP 3 SCOPING WORKSHOP » Attend workshop to review all the
elements discussed at steps 1 and 2 to ensure that the scope of our works is clear and any options are viable
» Discuss and agree any changes to the master model in terms of logistics, prefabrication, plant or riser location etc.
» Agree procedure for clash detection and frequency of uploading to avoid abortive works.
» Agree level of data to be attached to the various objects.
» Agree use of generic or bespoke engineering services design components.
STEP 4 LIVE TESTING » Check that all links are correctly operating
for data sharing and integration.
» Check that the uploading of models and data is working
» Check that the model changes from each member of the BIM team is being received correctly with the data intact.
» Issue areas of engineering service detail to BIM team to facilitate any coordination in critical areas, such as plant rooms, service risers, and service routes.
STEP 5 IMPLEMENTATION » Complete details of thermal model working
closely with other members of the BIM team to maximise energy and carbon reduction with the IES modular design tools.
» Complete design using technical software for all engineering service disciplines and feed this into the detailed design model to finalise all objects with tagged information to allow input to the relevant schedules (COBie or otherwise).
» Discuss and agree any modifications necessary to overcome any clashes detected
» Attend ongoing workshops to ensure the collaboration process is successful and the collective individual models sit within the master.
» Enable the completed engineering services model to be usable for the Contractor for his development to fabrication/construction stage.
STEP 6 MONITORING AND FEEDBACK » Review energy data obtained after a seasonal usage of the
building to assess actual data against the intended design energy consumption and building operation.
» Advise any issues or anomalies found that could be as a result of poor engineering services operation, staff training or any immediate faults found.
Our BIM strategyWe pride ourselves on fully appreciating the client’s objectives. From day one our BIM Manager will employ a six step BIM strategy, starting with a full appraisal briefing session to understand what our clients goals really are. Each milestone is manageable and our BIM Technicians will ensure a seamless stepped approach to building implementation. Once the project goes live, we provide visibility through our monitoring and feedback to ensure that our client’s aspirations are fully met for the lifecycle of the facility.
Glossary of Terms and Acronyms used in BIM
AIA American Institute of Architects
AIM Architectural Information Model
BIM Building Information Model
BIM Task Group A group that brings together expertise from industry, government, public sector, institutes and academia to help deliver the government’s construction strategy
BPMN Business Process Modelling Notation
BSIM Building Engineering Services version of the common model
CDE Common data environment
CIC Construction Industry Council
COBie Construction Operations Building Information Exchange
Core Maturity Model Model used within BS 8541 to define levels of BIM as follows:
0 - Unmanaged CAD probably 2D, with paper (or electronic paper) as the most likely data exchange mechanism
1 - Managed CAD in 2 or 3D format using BS 1192:2007 with a collaboration tool providing a common data environment, possibly some standard data structures and formats. Commercial data managed by standalone finance and cost management packages with no integration
2 - Managed 3D environment held in separate discipline “BIM” tools with attached data. Commercial data managed by an ERP. Integration on the basis of proprietary interfaces or bespoke middleware could be regarded as “pBIM” (proprietary). The approach may utilise 4D programme data and 5D cost elements
3 - Fully open process and data integration enabled by IFC/IFD. Managed by a collaborative model server. Could be regarded as iBIM or integrated BIM potentially employing concurrent engineering processes
Data Drops A level of data as yet undefined that will be the output from the BIM process at various stages. RIBA have identified data drops at stages B, C, E, G, K and L
EDMS Electronic Digital Management System
ERP Electronic reporting process
IDM Information Delivery Manual
IFD International Framework for Dictionaries
IFC Industry Foundation Classes
IPD Integrated Project Delivery
FIM Facilities Information Model
Government Construction Strategy
Issued in May 2011, spells out the Governments 4 year programme, in Construction, including the use of level 2 BIM on all public sector projects by 2016 (3D collaborative models with all project and asset information, documentation and data being electronic)
Meta Data Data used for the description and management of documents and other containers of information
PAS Publicly Available Specification
SIM Structural Information Model
Standards and Codes used in BIM
AIA E202- 2008 Building Information Modelling Protocol produced by AIA used in the UK as a reference document
BS 1192:2007 Collaborative production of architectural,engineering and construction information. Code of practice
BS 7000-4:1996 Design management systems. Guide to managing design in construction
BS 8541-1:2011 Library objects for architecture, engineering and construction: identification and classification
BS 8541-2:2011 Library objects for architecture, engineering and construction: recommended 2d symbols of building elements for use in building information modelling
BS 8541-3:2011 Library objects for architecture, engineering and construction: shape and measurement
BS 8541-4:2011 Library objects for architecture, engineering and construction: attributes for specification and assessment
BS ISO 29841-1:2010 Building information modelling, information delivery manual part 1: methodology and format
PAS 1192:2012 Early adopter document to enable the delivery of HMG BIM strategy projects to level 2 maturity indicator
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