15.15 - Steven McGee
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Transcript of 15.15 - Steven McGee
“Implementing Building Information Modeling
at Post Tender Stage”
A practical Application
Steven McGeeManaging Director
• Medium sized building contractor
• Operating for 109 years
• Public and Private clients
• Churches, Hospitals, Schools, Office Blocks, Retail, Hotels and Airport Buildings
• Market place is constantly changing
• Small market in Ireland
• Necessity to be innovative in our approach to strategic planning
• First Building Contractor in Ireland:
Deliver a BREEAM Excellent Office Block on a D&B basis
Currently delivering 1st publicly funded LEED Gold Certified Office block
“Implementing Building Information Modeling at Post Tender Stage” A practical Application
• No prior BIM experience
• Initiated study about BIM & IPD
• Tender scenario with requirement
to be BIM enabled contractor?
• To ensure maximum tender opportunity looked further into BIM
• The more BIM was looked into,
• the more de-mystified subject was
• apprehension changed to eagerness
“Implementing Building Information Modeling at Post Tender Stage” A practical Application
• Dept. of Justice & Tipperary TC Offices
• Client: Office of Public Works
• Design & Build
• Contract value €13M.
• Enquiry about BIM in the process:
• Architect was BIM aware
• Service Engineers fully BIM enabled
• Structural Engineer?
• Varying degrees of competences
• All desire to become involved
“Implementing Building Information Modeling at Post Tender Stage” A practical Application
• How to introduce BIM in process?
• Advice from ARUP
• Design Team & contractor, little experience of BIM
• Elected new member of the design team
• BIM enabled Cummins & Voortman• Assist in conversion from 2D to 3D model• Original 2D design successfully converted• Helped team members to understand the
advantages of designing in 3D
“Implementing Building Information Modeling at Post Tender Stage” A practical Application
Brief & project description•Site Area (2.5Ha)•Site Location•Block A & Block B
A B
Available information
•Architect Drawings
Available information
•Engineers Drawings
Process of 2d conversion into 3D“Simulated Collaborative approach”
3d BIM workflow in the context ofBritish Standard1192:2007
1st step: Engineer’s Role Created a structural model
Process of 2d conversion into 3D“Simulated Collaborative approach”
2nd step: Architect’s Role Creating building envelope & internal fit-out
1st step: Creation of structural elements
Foundations
1st step: Creation of structural elements
Ground Floor
1st step: Creation of structural elements
First Floor
1st step: Creation of structural elements
Second Floor
1st step: Creation of structural elements
Third Floor
2nd step: Creation of Architectural model
Ground Floor
2nd step: Creation of Architectural model
Clash detection
2nd step: Creation of Architectural model
Detail Clarification
2nd step: Creation of Architectural model
2nd step: Creation of Architectural model
First Floor
2nd step: Creation of Architectural model
Second Floor
2nd step: Creation of Architectural model
Third Floor
2nd step: Creation of Architectural model
Exterior Facade Structures
2nd step: Creation of Architectural model
Site Works
2nd step: Creation of Architectural model
Completed Model
2nd step: Creation of Architectural model
Quality Check & IFC export
• Once 3d BIM model completed• Opportunity to all frontline staff to visualize
product• Understanding complex sections of project• Immediate positive impact
• Creation of a 4D model (Time)• Time element - project schedule• Sequenced animated video• Immediate high level of understanding
• key stakeholders• front line staff
• Awareness of complexities prior to works starting
“Implementing Building Information Modeling at Post Tender Stage” A practical Application
• Real benefits• Key trade subcontractors appointed• Allowed Temporary works to be visualized• Virtual walk through prior to commencement• Review led to alternative sequence
• Removing unnecessary wastage of plant
• Optimization of production• Reducing scheduled durations
• Cost saving• removing unknown factors• instill confidence
“Implementing Building Information Modeling at Post Tender Stage” A practical Application
“Implementing Building Information Modeling at Post Tender Stage” A practical Application
“Implementing Building Information Modeling at Post Tender Stage” A practical Application
“Implementing Building Information Modeling at Post Tender Stage” A practical Application
“Implementing Building Information Modeling at Post Tender Stage” A practical Application
“Implementing Building Information Modeling at Post Tender Stage” A practical Application
“Implementing Building Information Modeling at Post Tender Stage” A practical Application
• Creating of 5D model (cost)
• detailed cost information imported into the 4d model
• Simple process
• Cost allocated against every scheduled task
• Demonstrated Projected Earned Value on a daily basis
• Culminating in Project Value at PC stage
“Implementing Building Information Modeling at Post Tender Stage” A practical Application
• Generating monthly update of the 5D model
• Actual Earned Value Vs Projected Earned Value
“Implementing Building Information Modeling at Post Tender Stage” A practical Application
• Evaluation of performance
• Performance failures graphically captured
Summary
•Tendered as Traditional Design & Build
•Changed to BIM approach
•5D model in place
•Team dedicated to success using BIM methodology
•BIM process presented to Client
• very impressed with approach & methodology
• anxious to know about BIM & traditional tender
“Implementing Building Information Modeling at Post Tender Stage” A practical Application
Summary
•Experience demonstrates BIM can be used in traditional tenders
• Provided a 3D model is generated prior to tender stage
•Resources necessary to utilize model to:
• Generate Bills of Quantities
• Temporary Works Appraisals
• Detailed programs
• Cost overruns -> incomplete Design Information
“Implementing Building Information Modeling at Post Tender Stage” A practical Application
Conclusion
•BIM enabled contractors
•Confidence and knowledge to use BIM process from inception
•Insight into effectiveness and benefits
•Impressive marketing opportunity
•Demonstrate abilities to future clients
•Identified cost saving at all levels
“Implementing Building Information Modeling at Post Tender Stage” A practical Application
Thank you!
Questions?