Emily Emily Emily Couric Emily Couric Couric Clinical Couric - - PowerPoint PPT Presentation

Emily Emily Couric Couric Clinical Clinical Emily Emily Couric Couric Clinical Clinical Cancer Center Cancer Center

University of Virginia University of Virginia Charlottesville, VA Charlottesville, VA

Brittany Brittany Muth Muth

Construction Management Construction Management

Gilbane Gilbane Building Co. Building Co.

Outline Outline

Background Background Background Background Solar Panels Solar Panels

• Electrical Breadth

Electrical Breadth BIM BIM for Façade for Façade Prefabrication Prefabrication

• Mechanical Breadth

Mechanical Breadth Conclusions Conclusions Questions Questions

Introduction Background Solar Panels

• Electrical

Breadth

Building Statistics: Building Statistics:

• 154,000 SF

154,000 SF

BIM for Façade Prefabrication

• Mechanical

Breadth Conclusions Questions

• 5 floors + penthouse

5 floors + penthouse

• $74 million

$74 million

• Outpatient diagnostic

Outpatient diagnostic and treatment center and treatment center A 2008 A 2008 D 2010 D 2010

• Apr. 2008
• Apr. 2008 – Dec. 2010
• Dec. 2010
• Design

Design-

• Bid

Bid-

• Build

Build

Introduction Background Solar Panels

• Electrical

Breadth

Architecture: Architecture:

• Consolidate existing services into

Consolidate existing services into

BIM for Façade Prefabrication

• Mechanical

Breadth Conclusions Questions

• ne building
• ne building
• Offices, exam rooms, linear

Offices, exam rooms, linear accelerators, radiation/oncology accelerators, radiation/oncology

• 4

4th

th floor expansion

floor expansion p

• Entrance Lobby

Entrance Lobby

Introduction Background Solar Panels

• Electrical

Breadth

Mechanical System: Mechanical System:

• All air, local reheat in

All air, local reheat in Electrical System: Electrical System:

• 23 local

23 local

BIM for Façade Prefabrication

• Mechanical

Breadth Conclusions Questions

each room each room

• 4 main AHU’s

4 main AHU’s

• 288 air terminal units

288 air terminal units transformers transformers

• 83 panel boards

83 panel boards

• 65 different light

65 different light fixtures, fixtures, fixtures, fixtures, fluorescent fluorescent

Introduction Background Solar Panels

• Electrical

Breadth

Building Envelope: Building Envelope:

• Brick veneer, stone, and curtain wall

Brick veneer, stone, and curtain wall EPDM i l EPDM i l l f b / l f b /

BIM for Façade Prefabrication

• Mechanical

Breadth Conclusions Questions

• EPDM single

EPDM single-

• ply roof membrane w/

ply roof membrane w/ white acrylic coating white acrylic coating

• Roof garden

Roof garden

Introduction Background Solar Panels

• Electrical

Breadth

Possible Limitations: Possible Limitations: BIM for Façade Construction BIM for Façade Construction

BIM for Façade Prefabrication

• Mechanical

Breadth Conclusions Questions

• Learning curve

Learning curve

• Technology

Technology

• Experience

Experience Possible Benefits: Possible Benefits:

• Quicker construction

Quicker construction

• Better coordination

Better coordination

• Shorter schedule

Shorter schedule

Introduction Background Solar Panels

• Electrical

Breadth

Survey Results: Survey Results:

• Increase

Increase BIM for Façade Construction BIM for Façade Construction

60 60 70 70 80 80

BIM for Façade Prefabrication

• Mechanical

Breadth Conclusions Questions

Constructability? Constructability?

• Yes

Yes

• Structural analysis

Structural analysis

• Coordination

Coordination

20 20 30 30 40 40 50 50 60 60

• Details

Details

10 10 Strongly Strongly Disagree Disagree Disagree Disagree Neutral Neutral Agree Agree Strongly Strongly Agree Agree

Introduction Background Solar Panels

• Electrical

Breadth

Survey Results: Survey Results:

• Increase Productivity?

Increase Productivity? BIM for Façade Construction BIM for Façade Construction

60 60 70 70

BIM for Façade Prefabrication

• Mechanical

Breadth Conclusions Questions

• Yes

Yes

• Communication

Communication

• Plan execution

Plan execution

10 10 20 20 30 30 40 40 50 50 10 10 Strongly Strongly Disagree Disagree Disagree Disagree Neutral Neutral Agree Agree Strongly Strongly Agree Agree

Introduction Background Solar Panels

• Electrical

Breadth

Survey Results: Survey Results:

• Beneficial for Façade

Beneficial for Façade BIM for Façade Construction BIM for Façade Construction

60 60 70 70 80 80

BIM for Façade Prefabrication

• Mechanical

Breadth Conclusions Questions

Analysis/ Analysis/ Coordination? Coordination?

• Yes

Yes

• Quantifying materials

Quantifying materials

20 20 30 30 40 40 50 50 60 60

Q y g Q y g

• Understanding water

Understanding water infiltration and infiltration and energy loss energy loss

10 10 Strongly Strongly Disagree Disagree Disagree Disagree Neutral Neutral Agree Agree Strongly Strongly Agree Agree

Introduction Background Solar Panels

• Electrical

Breadth

Survey Results: Survey Results:

• Learning curve =

Learning curve = BIM for Façade Construction BIM for Façade Construction

50 50 60 60

BIM for Façade Prefabrication

• Mechanical

Breadth Conclusions Questions

negative affects? negative affects?

• No

No

• Find right people

Find right people

10 10 20 20 30 30 40 40 10 10 Strongly Strongly Disagree Disagree Disagree Disagree Neutral Neutral Agree Agree Strongly Strongly Agree Agree

Introduction Background Solar Panels

• Electrical

Breadth

Survey Results: Survey Results:

• Reduce cost of façade

Reduce cost of façade BIM for Façade Construction BIM for Façade Construction

50 50 60 60

BIM for Façade Prefabrication

• Mechanical

Breadth Conclusions Questions

construction? construction?

• Neutral

Neutral

• Saves on errors

Saves on errors

• Increase in

Increase in

10 10 20 20 30 30 40 40

productivity productivity

10 10 Strongly Strongly Disagree Disagree Disagree Disagree Neutral Neutral Agree Agree Strongly Strongly Agree Agree

Introduction Background Solar Panels

• Electrical

Breadth

Survey Results: Survey Results: BIM for Façade Construction BIM for Façade Construction

BIM for Façade Prefabrication

• Mechanical

Breadth Conclusions Questions

Survey Results: Survey Results:

• Most difficult parts:

Most difficult parts:

• Level of details

Level of details

• Training

Training Subcontractors Subcontractors

• Most beneficial parts:

Most beneficial parts:

• Increase field productivity

Increase field productivity

• Managing costs

Managing costs

• Coordination

Coordination

• Subcontractors

Subcontractors

• Coordination

Coordination

Introduction Background Solar Panels

• Electrical

Breadth

Conclusion: Conclusion: BIM for Façade Construction BIM for Façade Construction

BIM for Façade Prefabrication

• Mechanical

Breadth Conclusions Questions

• Use for mock ups

Use for mock ups

• Not for complete model

Not for complete model

Introduction Background Solar Panels

• Electrical

Breadth

Prefabrication of Brick Facade Prefabrication of Brick Facade Advantages: Advantages: Disadvantages: Disadvantages:

BIM for Façade Prefabrication

• Mechanical

Breadth Conclusions Questions

• Shorter schedule

Shorter schedule

• Better quality

Better quality

• Possibly cheaper

Possibly cheaper

• constructability

constructability

• Possibly more expensive

Possibly more expensive

• Storage

Storage y

Introduction Background Solar Panels

• Electrical

Breadth

Prefabrication of Brick Facade Prefabrication of Brick Facade Brick Facade: Brick Facade:

BIM for Façade Prefabrication

• Mechanical

Breadth Conclusions Questions

• Area = 33,472 SF

Area = 33,472 SF

• Schedule = 244 days

Schedule = 244 days

• Original cost = $1.8

Original cost = $1.8 million million

Introduction Background Solar Panels

• Electrical

Breadth

Materials: Materials:

BIM for Façade Prefabrication

• Mechanical

Breadth Conclusions Questions

• 8” CMU Backup

8” CMU Backup

• 2” Insulation

2” Insulation

• Mortar Net

Mortar Net

• Weeps

Weeps p

• Brick Veneer

Brick Veneer

Introduction Background Solar Panels

• Electrical

Breadth

Materials Excluded with Materials Excluded with Prefab: Prefab:

BIM for Façade Prefabrication

• Mechanical

Breadth Conclusions Questions

• Mortar Net

Mortar Net

• Weeps

Weeps

• Air Cavity

Air Cavity

• Steel Plates

Steel Plates

• CMU Backup

CMU Backup

Introduction Background Solar Panels

• Electrical

Breadth

Thin Brick Prefab System: Thin Brick Prefab System:

• Cold formed structural stud:

Cold formed structural stud: 6" 16 6" 16 ga.

• ga. 1

1-

• 5/8" @ 16"

5/8" @ 16" o.c

• .c.

.

• 5/8

5/8" sheathing sheathing

BIM for Façade Prefabrication

• Mechanical

Breadth Conclusions Questions

• 5/8

5/8 sheathing sheathing

• WP membrane

WP membrane

• Z

Z

• 5/8

5/8" " sheathing sheathing

• Lath

Lath Lath Lath

• Scratch coat

Scratch coat

• Laticrete

Laticrete

• Thin

Thin brick brick

Introduction Background Solar Panels

• Electrical

Breadth

Prefabrication of Brick Facade Prefabrication of Brick Facade New Advantages: New Advantages: Sh t h d l Sh t h d l New Disadvantages: New Disadvantages:

BIM for Façade Prefabrication

• Mechanical

Breadth Conclusions Questions

• Shorter schedule

Shorter schedule

• Better quality

Better quality

• No air cavity, no leaks

No air cavity, no leaks

• Constructability

Constructability

• More expensive

More expensive

Introduction Background Solar Panels

• Electrical

Breadth

Prefabrication of Brick Facade Prefabrication of Brick Facade Panel Calculations: Panel Calculations: ’ ’ ’ ’ S

30’ 7’

BIM for Façade Prefabrication

• Mechanical

Breadth Conclusions Questions

• Panel Area = 30’ x 7’

Panel Area = 30’ x 7’ = 210 SF = 210 SF

• # of panels = 33,472 SF / 210 SF=

# of panels = 33,472 SF / 210 SF= 159 panels 159 panels

30 7

• Days = 159 panels / 8 panels per

Days = 159 panels / 8 panels per day = 20 days day = 20 days

Introduction Background Solar Panels

• Electrical

Breadth

Prefabrication of Brick Facade Prefabrication of Brick Facade Comparison: Comparison:

BIM for Façade Prefabrication

• Mechanical

Breadth Conclusions Questions

• Original:

Original:

• Cost = $1.8 million

Cost = $1.8 million

• Schedule = 244 days

Schedule = 244 days

• Prefabricated:

Prefabricated:

• Cost = $3.2 million

Cost = $3.2 million

• Schedule = 178 days

Schedule = 178 days

Introduction Background Solar Panels

• Electrical

Breadth

Prefabrication of Brick Facade Prefabrication of Brick Facade Conclusion: Conclusion:

• Too expensive

Too expensive

BIM for Façade Prefabrication

• Mechanical

Breadth Conclusions Questions

• Too expensive

Too expensive

• Not a fast track schedule

Not a fast track schedule

Introduction Background Solar Panels

• Electrical

Breadth

Mechanical Breadth Mechanical Breadth Original Wall Properties: Original Wall Properties:

• R value = 10 63

value = 10 63 Prefab Wall Properties: Prefab Wall Properties:

• R value = 13 28

value = 13 28

BIM for Façade Prefabrication

• Mechanical

Breadth Conclusions Questions

• R-value = 10.63

value = 10.63

• U

U-

• value = 0.094

value = 0.094

• Thickness = 16”

Thickness = 16”

• R-value = 13.28

value = 13.28

• U

U-

• value = 0.075

value = 0.075

• Thickness = 11”

Thickness = 11”

Introduction Background Solar Panels

• Electrical

Breadth

Mechanical Breadth Mechanical Breadth Heat Loss: Heat Loss:

• Original Design

Original Design

BIM for Façade Prefabrication

• Mechanical

Breadth Conclusions Questions

Original Design Original Design

• 176,384 BTU/HR

176,384 BTU/HR

• Prefab Design

Prefab Design

• 141,145

141,145 BTU/HR BTU/HR

• 19 9% better

19 9% better

• 19.9% better

19.9% better

Introduction Background Solar Panels

• Electrical

Breadth

Mechanical Breadth Mechanical Breadth Conclusion: Conclusion:

• Prefab has better

Prefab has better

BIM for Façade Prefabrication

• Mechanical

Breadth Conclusions Questions

• Prefab has better

Prefab has better mechanical properties mechanical properties

• Still too expensive

Still too expensive

Introduction Background Solar Panels

• Electrical

Breadth

Conclusions Conclusions

• Solar panels not economical

Solar panels not economical

BIM for Façade Prefabrication

• Mechanical

Breadth Conclusions Questions

p

• BIM should have been used

BIM should have been used for mockups for mockups

• Prefab definitely shortens the

Prefab definitely shortens the schedule and adds quality schedule and adds quality schedule and adds quality, schedule and adds quality, but too expensive but too expensive

Introduction Background Solar Panels

• Electrical

Breadth

Acknowledments Acknowledments

University of University of Virginia: Virginia:

• Fred Dunn

Fred Dunn

• Jeff Moore

Jeff Moore

• Dee

Dee Eadie Eadie Gilb Gilb B ildi C B ildi C Clark Clark Nexson Nexson

• Jonathan

Jonathan Walker Walker

BIM for Façade Prefabrication

• Mechanical

Breadth Conclusions Questions

Gilbane Gilbane Building Company Building Company

• Mike

Mike Poulin Poulin, Project Executive , Project Executive ISEC, Inc.: ISEC, Inc.:

• Matt

Matt Heistand Heistand

• Paul

Paul Harsch Harsch Davis Davis Construction Construction Balfour Balfour Beatty Beatty Jacobs Jacobs Engineering Engineering United United States Army Corps States Army Corps Engineers Engineers

• Jim

Jim McAllister McAllister Eastern Exterior Wall Systems Inc.: Eastern Exterior Wall Systems Inc.:

• Wayne Martin

Wayne Martin United United States Army Corps States Army Corps Engineers Engineers The The Pennsylvania State University: Pennsylvania State University:

• Faculty

Faculty

Questions? Questions?