1. 1
Implementing VDC
for Building Sitework
John Prince, P.E.
April 24, 2012
2012 San Antonio, TX
4/24/2012
2. 2
VDC for Building Sitework
Introduction
Internal Impacts of VDC Implementation
External Impacts of VDC Implementation
Results, Lessons Learned, Suggestions
4/24/2012
3. 7
3D Surveying
3D Laser
Scanning
3D
Site Survey
• Traditional
Surveying with
3D Processing
• Site Features
Generated
Automatically
• Accurate Surface
Model Ready
for VDC
• Detailed Site
Culture to Meet
Needs
Miramar College Interim Library Topo
4/24/2012
4. 8
3D Surveying
3D Laser
Scanning
3D
Site Survey
3D Existing
Utility
Modeling
• Various Reference
Sources
• Ready for VDC
• Embedded System
Information
4/24/2012
5. 9
RBF Experiences/Services
3D −Dynamic 3D
Surveying Environment
−Detailed Surface
3D Integral with Site
Site Design Plan
−Data-Rich Utilities
and Structures
Alpine Blvd Widening
Miramar College Student Union
4/24/2012
6. 3D Site Design
Fire Science/EMT Training Facility
Mesa College SBSB
CSUSM Ballfields
8. RBF Experiences/Services
3D
Surveying
3D Camp
Site Design Pendleton
BEQ 8
Conversion
Modeling
−Model any Site
Utility System
−Phase Utilities or
Grading to meet
Contractors Need
−Staking of Dry
Utilities
−Up-To-Date Model
with Construction
Changes/As-Built
9. RBF Experiences/Services
3D
Surveying .NWD
from each
3D Discipline
Site Design
.NWF
Conversion Repeat
Master Model
Modeling
Site BIM
Management
Design
Clash
Revisions and
Analysis
Coordination
BIM
Coordination
Meeting
10. Key DifferencesDesign & Technology
Civil Engineering with Sitework
― Real-World Coordinates
― Tied by existing conditions/constraints
― Design includes existing and proposed conditions, not just all new
― Different authoring software than building design
― Authoring software is geared more toward public works type projects
― Less prefabricated elements or “system” components
― Site BIM Management techniques differ
11. VDC for Building Sitework
Introduction
Internal VDC Implementation Impacts
External VDC Implementation Impacts
Results, Lessons Learned, Suggestions
13. Internal Impacts RBF?
So, Why BIM for
― Better documentation of existing utility conditions
― Detailed surface improves fine grading and ADA design
― Model Based/Dynamic Design and Plan Production = Increased
Efficiency, Fewer Errors, and Better Quality End Product
14. Internal Impacts
Complete shift in QA/QC process using collaboration software
― General Visual QC/Layers
― Utility Clashes
― Utility Cover
― Utility Structure at Grade
15. Internal Impacts
Complete shift in QA/QC process using collaboration software
― Grading Impacts on Existing Utilities or Early Install Utilities
― Water/Sewer/Recycled Water separation
― Pipe/Structure Connections
16. VDC for Building Sitework
Introduction
Internal Impacts of VDC Implementation
External Impacts of VDC Implementation
Results, Lessons Learned, Suggestions
17. External Impacts
Increased Project Understanding through more comprehensive model
18. External Impacts
― Tighter/More Detailed Design = Less RFI’s
― Increased Clarify of Design Changes
― Use of different authoring software between site and building
consultants requires some traditional 2D coordination (for now)…
19. External Impacts
Coordination Using VDC Methods
(collaboration software, BIM tools, etc.)
―Vertical Utility Coordination
―Grading Impacts to Early Utilities
NEXT
25. External Impacts
Coordination Still Using Traditional Methods
(overlays, coordination print review)
―Architectural Site Plan
―Horizontal Site Utility Coordination
―Building Utility POC Info
―Discipline References across Plan Sheets
―Pavement Types and Sections
―Existing Utility Accuracy and Potholing
―Dissemination of Changes
26. VDC for Building Sitework
Introduction
Internal Impacts of VDC Implementation
External Impacts of VDC Implementation
Results, Lessons Learned, Suggestions
27. Results, Lessons Learned, Suggestions
― File/Building Alignment is Very Important
― Need Building Consultants Align with Civil Site
― Building/Site Coordination Tools
― Efficient/Repetitive File Sharing/Overlay
― Building Doors and Utility POC’s
― Site Utilities
― Surfaces
― Confident Alignment in Collaboration
28. Take-Aways
VDC Implementation has proven beneficial
The effect of VDC on Sitework needs attention
The VDC Process needs to follow the Design Process/Schedule
Full Buy-in from all consultants is needed for success
Well developed processes/execution are necessary for
benefits to be realized
29. Implementing VDC for Building Sitework
John Prince, P.E.
Thank You, Any Questions?
