REVIT FOR SMALL PROJECTSIs it worth the effort?

?

Eric Peabody Elizabeth Cox

OBJECTIVES1. Understand how to implement BIM at

the appropriate scale for projects

2. Evaluate the tools available for a successful small project in BIM

3. Leverage BIM data to coordinate with the design and construction team

4. Understand the cost saving potential for small projects

WHY?● Draw Faster!

Drawing 1 line is faster than drawing two

Detail drafting faster with families and keynotes

Don’t commit to full 3D BIM - blend BIM & CAD

● Auto-Pilot!Elevation to plan coordination

Automatic drawing set creation

Automatic egress and other calcs

Free 3D = better communication

● Be Coordinated!For projects with complex overhead - 3D coordination

For extreme projects - 3D laser scanning

DrawFaster!

Drawing one line is faster than

drawing two

120 BIM objects

2002 CAD objects

Don’t commit to

full 3D BIM

Blend BIM & CAD

Auto-Pilot!

Autodrawing

coordination

Auto drawing

set creation

Automatic egress calculations…

…to automatic acoustic calculations

Free 3D

BeCoordinated!

For projects with complex overhead…

For complex

overhead…

Automatic spatial coordination

Where is the coordination error?

Structural Plan

Mechanical Plan

For extremely complex

overhead…

3D Scan (E) Model (N) Model Construction

3D Scan (E) Model (N) Model Construction

3D Scan (E) Model (N) Model Construction

3D Scan (E) Model (N) Model Construction

CASE STUDIES● Tiny: SFMH Blood Analyzers

● Small:  BLINK Optometry

● Complex: UCSF MPOE

● Extreme: UCSF OR 1 & 11

● Extreme: UCSF OR7 & 29

Tiny Project

St Francis Memorial Hospital Blood

Analyzers

● Drawing 1 line faster

● Detail components

● BIM + CAD

● Auto Drawing Coord.

Tiny Project

St Francis Memorial Hospital Blood

Analyzers

● Drawing 1 line faster

● Detail components

● BIM + CAD

● Auto Drawing Coord.

Tiny Project

St Francis Memorial Hospital Blood

Analyzers

● Drawing 1 line faster

● Detail components

● BIM + CAD

● Auto Drawing Coord.

Small ProjectBlink Optometry

● Drawing 1 line faster

● Detail components

● 2D & 3D BIM

● Auto Drawing Coord.

● Auto Egress Calcs

● Free 3D

Small ProjectBlink Optometry

● Drawing 1 line faster

● Detail components

● 2D & 3D BIM

● Auto Drawing Coord.

● Auto Egress Calcs

● Free 3D

Small ProjectBlink Optometry

● Drawing 1 line faster

● Detail components

● 2D & 3D BIM

● Auto Drawing Coord.

● Auto Egress Calcs

● Free 3D

Complex Project

UC San Francisco MPOE & MDF

● Drawing 1 line faster

● Detail components

● Auto Drawing Coord.

● Auto Egress Calcs

● Free 3D

● 3D Coordination

Complex Project

UC San Francisco MPOE & MDF

● Drawing 1 line faster

● Detail components

● Auto Drawing Coord.

● Auto Egress Calcs

● Free 3D

● 3D Coordination

Extreme Project

UC San Francisco OR 1 & OR 11

● Drawing 1 line faster

● Detail components

● Auto Drawing Coord.

● Auto Egress Calcs

● Free 3D

● 3D Coordination

● 3D Laser Scanning

Laser Scanning

Modeling – Revit and Navisworks

Tight Coordination

Extreme Project

UC San Francisco OR 7 & OR 29

● Drawing 1 line faster

● Detail components

● Auto Drawing Coord.

● Auto Egress Calcs

● Free 3D

● 3D Coordination

● 3D Laser Scanning

Detailed Modeling for Coordination

Regular Design Team Clash Detection Meetings

Planning and Visualization

PROOFThe Stanford Cath Lab Experiment

● Cath Lab 7: CAD

● Cath Lab 9: Standard BIM

● Cath Lab 10: Extreme BIM

● Financial Results

(E) CAD V.I.F. (N) CAD Construction

Cath Lab 7All CAD

“”

The delay was caused…by the over-head structural and M/E/P/FP not being coordinated. The majority of the overhead had to be re-designed.

DPR Construction

Cath Lab 9BIM to 2”

3D Scan (E) Model (N) Model Construction

Cath Lab 10

All BIM

3D Scan (E) Model (N) Model Construction

BIM Use % from CAD

Cath Lab 7 CAD Baseline

Cath Lab 9 2” Standard -15.0%

Cath Lab 10 Everything -4.1%

Construction Cost

Change Order Cost

*All figures in 2010 Relative Value

BIM Use % of Total

Cath Lab 7 CAD 12.4%

Cath Lab 9 2” Standard 8.1%

Cath Lab 10 Everything <0.1%

*All figures in 2010 Relative Value

BIM Use Construction Days/SF % from CAD

Cath Lab 7 CAD 8.40 mo 0.23 D/SF

Cath Lab 9 2” Standard 8.50 mo 0.15 D/SF -34.8%

Cath Lab 10 Everything 8.45 mo 0.16 D/SF -30.4%

Construction Schedule

All Costs*

* All costs normalized to 2010 dollars** All design professional fees, including non-BIM fees*** Cath lab contribution margin of ~$8,000 per day

Survey All Services** Construction $ Margin*** Total

Cath Lab 7 18.5% 18.5%

Cath Lab 9 1.6% 27.3% (15.0%) (48.5%) (35.4%)

Cath Lab 10 1.6% 18.5% (4.1%) (54.7%) (34.6%)

CONCLUSION1. The extent of BIM tools used can vary

by the needs of the project

2. Lots of benefits to using BIM● Draw Faster!

● Auto-Pilot!

● Be Coordinated!

3. Model objects down to 1½” for clash detection laser scanning

4. Reduce cost, change order rate, schedule, and save owners money

Eric Peabody Elizabeth Cox

THANKS! THANKS!

Room designed by Tiago Dos Reis Rodrigues from The Noun ProjectBuilding designed by Antonis Makriyannis from The Noun Project