BIM Me Up, Scottie! The Next Generation in Construction Technology
Teri Jones, LEED AP Vice President Sundt Construction
Agenda What is BIM? Current Practices Benefits & Advantages Challenges The BIM Path Case Studies Summary
What Is BIM?
Definition BIM is the move from analog to digital design and construction. A model-based technology linked with a database of project information - AIA Construction is the only industry that does not/cannot test a design before production
2D vs. 3D
2D Traditional drawings
3D BIM
3D - Installed Actual
4D Example The Sundt Corporate Office
4 th Dimension - Time Each element in model tied to CPM Schedule Construction sequence can be simulated showing conflicts between trades Play “What if?” game with model to find more efficient construction path - saving time and money Once construction begins model used to track construction progress
5D Each component of the BIM tied to the Cost Estimate
Current Practices
Collaborated Model (Navisworks) Struct Model (Revit) Arch Model (Revit) Elect Model (Graphisoft) Mech Model (CadDuct) Plumb Model (ABS) Fire Model (CadPipe) Civil Model (Bentley)
Model Changes The ability to change the model is strictly limited to those who are responsible for changes to that portion of the model A precise audit trail can be maintained
Benefits and Advantages
Benefits & Advantages Clash Detection Faster Construction Time Streamline Delivery/Fabrication Better Performing Facilities Fewer Claims Real Time Value Engineering User Understanding – 3D Visualization
Challenges
Challenges Lack of standards for organization and format of data contained within the model Contracts/Delivery Methods –Defining responsibility –Allocation of Risk –Ownership of data –Insurance/Surety/Bonding Interoperability Fear of change Initial investment costs Learning curve
Challenges – For Designers Change in culture & work flow –Work is divided up by major building elements in lieu of by drawing sheets –Decisions are made earlier as to materials, specifications and quantities
The BIM Path
First Steps Get Senior Management involved to ensure leadership support Dedicate someone to the effort – BIM Champion Prepare a BIM plan – keep it simple and specific
Learning Curve It is generally accepted that there is an initial cost and loss of productivity while obtaining the necessary resources as firms go through the initial learning curve. Those firms who have made it through this initial learning curve (on average between 6 and 18 months) experience the benefits.
Question: Yesterday vs. Today Yesterday: When & why adopt BIM? Today: How do we effectively deploy it?
Software & Training Cost Design Software $3, /- per user Navisworks $8, /- per copy Training
Case Studies
Sundt Office Building Cronkite School of Journalism, ASU Butler Treatment Plant
Sundt Corporate Office
Structural vs Systems 84 Clashes Structural vs Systems 4 Clashes
Butler Treatment Plant Sequenced Work
Butler Treatment Plant What isn’t seen is what hurts the most
Cronkite School of Journalism Main Corridor Above Ductwork Main Corridor Below Ductwork
Cronkite School of Journalism Level 1 Fire Protection Clashes Orange – Ductwork Red – Mechanical Piping
Cronkite School of Journalism Mechanical Room (Is this going to fit?)
Summary Use of BIM is leading to a revolution in project delivery and facility maintenance. The traditional tri-party approach to design and construction will, over time, be replaced by “Integrated Practice” and collaboration
Examples Cityscape Construction Timeline Cronkite School of Journalism
Questions & Answers