Video recording of presentation can be found here - https://youtu.be/xrODbG6YiFU

1. MY LEAN + BIM JOURNEY
Nathan Wood, Chief Enabling Officer
@nathancwood
@SpectrumAEC

2. Boulder, CO
Austin, TX
San Francisco, CA
Falls Church, VA
The Journey to DPR Construction & BIM

3. BIM Research Assignment: Abu Dhabi

4. DPR Consulting: Implementing 5D Collaboration

5. www.bestppt.com
People, Process, & Technology
Mission

6. www.bestppt.com
WHA
THOW
WHY
?
BIM Definition
US National BIM Standard v1, 2007
“A digital representation of physical and functional characteristics of
a facility. A BIM is a shared knowledge resource for information
about a facility forming a reliable basis for decisions during its life-
cycle; defined as existing from earliest conception to demolition.”

7. SUTTER CASTRO VALLEY
WHY: Sutter Health + OSHPD State Requirements
Seismic Fault Lines
San Francisco Bay, CA

8. Structure & Façade CoordinationWHAT: Detailed BIM of Structure & Façade

9. 30%
Reduction in
Schedule
No
Rework
(MEP)
As-Built
Model
Increase
Field Crew
Production
HOW: BIM + Lean + Integrated Project Delivery

10. 3D Detailing and Coordination in Tekla
Shop Drawing Generation is Direct Output from Tekla Model
BIM Use: Direct 3D to 2D Field Drawings

11. The First Discovery: Rebar vs. Precast Sleeve
• 200+ Facade penetrations or embed were coordinated with rebar and MEP.
• Precast subcontractor did not originally account for rebar spacing during design.
• Over 25% of Connection designs were changed due to BIM Coordination
BIM Use: Precast Façade Connections

12. BIM = Better Productivity & QualityBenefit: Quality Control + Increased Productivity
DPR Concrete reported 10% Productivity Increase from BIM shop drawings process.

13. Architect
Design Assist
3D Model
Design Drawings
Shop Drawings
Comments
Permit
Lesson Learned: Design Assist Permit Process

14. A Coordinated BIM is only as valuable as the
deliverable that it produces!
Design Drawings
?
=
? Shop Drawings
The Question Becomes…Risk: Design to Fabrication Reliability

15. How do you check?Countermeasure: 2D Fabrication to BIM
Design Assist Subcontractors Provided CAD to Align in Tekla

16. From 2D Shop Drawings…..From 2D to 3D BIM ….. Not Lean, but Effective!

17. Precast 2D
Elevation
Elevation in
Fab Model
BIM Use: Complex Detail Coordination (BIM + IPD)

18. Coordinated in the Model
Revised Shop Drawing
Benefit: BIM to Fabrication Reliability

19. BIM Use: 2D Detail Constructability Review

20. Tapered Roof InsulationBIM Use: Podium Roof Design Coordination
• OSHPD requires minimum distance between roof penetrations
• 30+ locations where tapered insulation fell above kicker connections
• OPTION #1: Spend $50K + schedule delay to move existing screen posts

21. BIM + Lean: Last Responsible Moment
• OPTION #2: Roof Slope redesigned 4 weeks prior to roof concrete pour
• Required 3 new drains to be coordinated with existing MEP BIM

22. TRUST: CONSTRUCTABILITY INPUTHOW: Shared Risk & Reward with MEP Trades
• Routed 3 additional drains to a nearby riser in BIM
• New drainage calculation of the redesigned sloping
• Confirmed LEED requirements of roof still held
• Poured concrete roof slab on schedule

23. TRUST: TRADES INSTALL FROM BIMBIM Use: Automated Spool Fabrication from BIM
Courtesy of McClanahan Plumbing

24. SYNERGY: BIM + TOTAL STATIONBIM Use: Integrated Total Station Layout
Use of Robotic Total Station (RTS) in Conjunction
with Coordinated MEP Inserts in BIM
4X Productivity Compared to Conventional Layout
Courtesy of McClanahan Plumbing

25. Drywall Spool Sheets Direct from
Coordinated BIM
TRUST: IMPROVED FRAMING PROCESSBIM Use: Drywall Framing Productivity & Rework
Credit: DPR Drywall

26. 50-95%
Reduction
in Rework
Benefits: Installation Metrics (Castro Valley)
0%
5%
10%
Mech
Plumb
Electrical
Drywall
Rework (%) By Trade
Baseline
Actual
5-28%
Increase in Productivity
0%
10%
20%
30%
Mech
Plumb
Electrical
Drywall
Productivity Increase
% By Trade
Planned
Actual

27. SUTTER CASTRO VALLEY
SUTTER ALTA BATES
Fall 2010: Transferring Lessons to Alta Bates

28. New Project, New Risks: Sutter Alta Bates
Complex Project Site
Unforseen Conditions
Seismic Expansion Joint Connections

29. BIM Use: Modeling of Temporary Structures
Rebar Scope Gap:
Tower Crane Anchor
Tower Crane Design:
Height Requirement & Radius Limits

30. BIM Use: Façade Constructability Comments

31. Visual Pour Planning
BIM Use: Concrete Planning & Layout
Enhanced Concrete
Lift Drawings
Total Station Layout Integration

32. Project ChallengesRisk: BIM vs. Field Reliability
?
=
?

33. Robotic Total Station
Better for model vs. field comparison
of large areas/entire site
Countermeasure: Digital As-Builting
Better for specific points (end of wall,
bottom of door threshold, etc)
Laser Scanning

34. Courtesy of Trimble Navigation ltd.
BIM Use: Modeling of Unforseen Conditions

35. Design allows for maximum 3” tolerance for placement of piles
As-Built pile layout showed deviations up to 12” in more difficult locations
Risk: Misplaced Piles & Rebar Design Changes

36. Robotic Total Station points were captured immediately following pile placement
to early identify misplaced piles and begin design change and approval process
Within Tolerance
Out of Tolerance – Change in Rebar
Out of Tolerance –No Rebar Changes
BIM Use: Digital Check for Deviations

37. BIM Use: Coordination of Rebar & Structural Steel
2D constructability markup
Steel Plate Penetrations Aligned
with new Rebar Design

38. The Process
2D Shop
Drawings
Shop Drawing
Review
Fabricate
Rebar
Install Rebar
3D Model
Lean Innovation: Cloud Rebar Submittal Reviews

39. Cloud Comment Responses = No Resubmittal

40. BIM Use: Macro 4D Visualization of Trades

41. 1. Pour Concrete
Basement Walls
2. Erect Steel Frame
3. Follow behind with
Concrete Core Walls
BIM Use: Micro 4D Constructability Analysis

42. 4D Clash: Welding Access

43. 4D Clash: Welding Access

44. Form 2’x2’ opening in
wall for welding access
Leave out section of
wall prior to steel
Communicate Design Changes in BIM

45. Patch opening after
welding complete
Communicate Design Changes in BIM

46. Pour section
with core wall
BIM Enabled Design Change Approvals

47. Risk: Civil/Structural Design Coordination

48. BIM Use: Overlay of Revit Structure & Civil 3D

49. Countermeasure: Define Rebar Design in BIM

50. Pull 2D Detail from BIM for OSHPD Drawing

51. Integrate x,y,z Total Station Layout from BIM

52. =
Success Metric: Early Schedule Savings
Concrete Foundations
31 Days
Of Critical Path Schedule
Recovered over 10 Months
33%
Time Savings Per
Submittal Review

54. A Tale of Two Projects: IPD Lessons Learned
Castro Valley Delivered
6 Weeks
Ahead of Schedule
Maintained
Target Cost
Alta Bates Delivered
6 Months
Behind Schedule
20 Million
Over Target Cost

55. BIM?IPD? LEAN?

56. The Castro Valley Difference: Culture
Team members chorus: Don’t try this with strangers.
Expect lengthy contract negotiations and endless
meetings.
Be vigilant about communicating.
“The actual effort required was underestimated on
both the design and construction sides,” says James
Mobley, a Devenney principal.

57. The Tipping Point of BIM Value Starts with….

58. Design Model vs Construction Model
Composite Overlay
Design Model Fabrication Model
Reactive Quality Control of Design Hanoff

59. Exposed Areas of Poor Communication

60. TOOL
SHIFTING THE INDUSTRY PARADIGM
PEOPLE PROCESS
BIM is just a Tool1
This Tool is only as good as
the People using It
2
The People can only be as
effective as the Process allows them to be
3
The Role of BIM in Design & Construction

61. Christian, D., Bredbury, J., Emdanat, S., Haase, F., Kunz, A., Rubel, Z. and Ballard, G. (2014). “Four-phase project delivery and the pathway to
perfection.” In: Proc. 22nd Ann. Conf. of the Int’l Group for Lean Construction, IGLC-22, Oslo, Norway, June 25- 27. Available at <www.iglc.net>
Trust in BIM Starts with Lean Handoffs

62. 3D Model 2D Drawings
DesignFabrication
62
Challenge: BIM Handoffs in the Real World

63. • Does this…..
• Equal this?
Design Model
Fabrication Model
Risk: Loss of Reliable BIM for Coordination

64. 64
Risk: BIM Coordination Sequence & LOD

65. 3D Model 2D Drawings
DesignerDetailer
65
Risk: New Process, Old Contract?

66. “Virtually everyone in the
construction supply chain works
on contracts where the incentive
is to maximize their gain at the
expense of others”
Macomber, John D. 2003 ASCE Report:
“Follow the Money: What Really Drives
Technology Innovation In Construction”
Root Cause Analysis: Contract Incentives

67. Result: Insufficient Funding for Technology
0 1 2 3 4 5 6 7
Construction
Energy
Manufacturing
Transportation
Healthcare
Education
Finance
IT Spending as a % of Revenue, By Industry [Gartner 2014]
3.3%
Cross-Industry
Average
3.3x
Investment Gap

68. ARE WE RIPE FOR DISRUPTION?
“It’s more likely…that new firms with new business
models and new areas of focus will leverage the
financial and technological innovations that will
change the nature of competition”
-Clayton Christensen, 1997
The Future of BIM Adoption in USA
IPD Contract Relationship
-
Design-Build Contract Structure
-
?
=
?

69. “BIM-Centric” “Data-Centric”
2012 2016
69
The Language of BIM has Evolved

70. Data
Centric
Integration Brings Efficiency & Reliability
Drawing
Centric
Task
Centric
BIM
Centric
Time
Centric
Media
Centric
Integrated BIM Requires Integrated Data

71. Where is Brazil along the ‘BIM Hype’ Journey?

72. Integrated BIM is Our Most Valuable Tool

73. Key Factors Impacting Poor Cost & Schedule
[McKinsey]
Poor Organization Missed Connections
Inadequate
Communication
Poor Short Term
Planning
Flawed Performance
Management
Insufficient Risk
Management
Contractual
Misunderstandings
Limited Talent
Management
“Lack of Technology” isn’t the Root Cause

74. It Starts with the Right People in the Right Place

75. Efficient Data
Capture
Reliable Data
Analytics
Solving the BIM + Lean Dilemma

76. Profile
Location
Sheet A232B
Creation Date
Status Data

77. Assess Align Advance
Adoption of BIM Requires Early Input

78. Profitable BIM Requires a Balance Between
BIM & Data
Standards
Aligned Purpose &
Behaviors
Lean Process
Innovation

79. www.bestppt.com
@nathancwood
@SpectrumAEC