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Implementing VDC

for Building SiteworkJohn Prince, P.E.

April 24, 2012

2012 San Antonio, TX

4/24/2012

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VDC for Building Sitework

Introduction

Results, Lessons Learned, Suggestions

Internal Impacts of VDC Implementation

External Impacts of VDC Implementation

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3D Laser Scanning

3DSite Survey

3D Surveying

Miramar College Interim Library Topo

• Traditional Surveying with3D Processing

• Site Features Generated Automatically

• Accurate Surface Model Readyfor VDC

• Detailed Site Culture to Meet Needs

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• Various Reference Sources

• Ready for VDC

• Embedded System Information

3D Laser Scanning

3DSite Survey

3D ExistingUtility

Modeling

3D Surveying

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−Dynamic 3D Environment

−Detailed Surface Integral with Site Plan

−Data-Rich Utilities and Structures

3DSurveying

3DSite Design

Alpine Blvd Widening

Miramar College Student Union

RBF Experiences/Services

CSUSM Ballfields

Mesa College SBSB

3D Site Design

Fire Science/EMT Training Facility

3D Site Design

3DSite Design

3DSurveying

Camp Pendleton

BEQ 8Conversion 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

RBF Experiences/Services

.NWDfrom each Discipline

.NWDfrom each Discipline

.NWFMaster Model

.NWFMaster Model

Clash Analysis

Clash Analysis

BIM Coordination

Meeting

BIM Coordination

Meeting

Design Revisions and Coordination

Design Revisions and Coordination

RepeatRepeat

3DSite Design

3DSurveying

Site BIM Management

Conversion Modeling

RBF Experiences/Services

― 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

Civil Engineering Design & TechnologyKey Differences with Sitework

VDC for Building Sitework

Introduction

Results, Lessons Learned, Suggestions

Internal VDC Implementation Impacts

External VDC Implementation Impacts

Key Differences of SiteworkSo, Why VDC for RBF?

― 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

So, Why BIM for RBF?Internal Impacts

Complete shift in QA/QC process using collaboration software― General Visual QC/Layers― Utility Clashes― Utility Cover― Utility Structure at Grade

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

Internal Impacts

VDC for Building Sitework

Introduction

Results, Lessons Learned, Suggestions

Internal Impacts of VDC Implementation

External Impacts of VDC Implementation

Increased Project Understanding through more comprehensive model

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)…

External Impacts

Coordination Using VDC Methods(collaboration software, BIM tools, etc.)

NEXT

External Impacts

―Vertical Utility Coordination―Grading Impacts to Early Utilities

Grading Impacts to Early Utilities

External Impacts

Coordination Using VDC Methods(collaboration software, BIM tools, etc.)

NEXT

External Impacts

―Vertical Utility Coordination―Grading Impacts to Early Utilities―Formation/Soil Layer Analysis

Formation/Soil Layer Analysis

External Impacts

Coordination Using VDC Methods(collaboration software, BIM tools, etc.)

NEXT

External Impacts

―Vertical Utility Coordination―Grading Impacts to Early Utilities―Formation/Soil Layer Analysis―Utility Equipment Sizing―Structural Footing Conflicts―Structural Load Influence Conflicts

Structural Load Influence Conflicts

External Impacts

Coordination Still Using Traditional Methods(overlays, coordination print review)

External Impacts

―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

VDC for Building Sitework

Introduction

Results, Lessons Learned, Suggestions

Internal Impacts of VDC Implementation

External Impacts of VDC Implementation

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

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

Take-Aways

Implementing VDC for Building SiteworkJohn Prince, P.E.

Thank You, Any Questions?