emily couric clinical cancer center university of virginia charlottesville, va gilbane building co....

Emily Couric Clinical Emily Couric Clinical Cancer CenterCancer Center

University of VirginiaUniversity of VirginiaCharlottesville, VACharlottesville, VA

Gilbane Building Co. Gilbane Building Co.

Brittany MuthBrittany MuthConstruction Management Construction Management

OutlineOutline

BackgroundBackgroundSolar PanelsSolar Panels•Electrical BreadthElectrical BreadthBIM for FaçadeBIM for FaçadePrefabricationPrefabrication•Mechanical BreadthMechanical BreadthConclusionsConclusionsQuestionsQuestions

IntroductionBackgroundSolar Panels•Electrical BreadthBIM for FaçadePrefabrication•Mechanical BreadthConclusionsQuestions

Building Statistics:Building Statistics:•154,000 SF154,000 SF•5 floors + penthouse5 floors + penthouse•$74 million $74 million •Outpatient diagnostic Outpatient diagnostic and treatment centerand treatment center•Apr. 2008 – Dec. 2010Apr. 2008 – Dec. 2010•Design-Bid-BuildDesign-Bid-Build


Architecture:Architecture:•Consolidate existing services into Consolidate existing services into one buildingone building•Offices, exam rooms, linear Offices, exam rooms, linear accelerators, radiation/oncologyaccelerators, radiation/oncology•44thth floor expansion floor expansion•Entrance LobbyEntrance Lobby


Mechanical System:Mechanical System:•All air, local reheat in All air, local reheat in each roomeach room•4 main AHU’s4 main AHU’s•288 air terminal units288 air terminal units

Electrical System:Electrical System:•23 local 23 local transformerstransformers•83 panel boards83 panel boards•65 different light 65 different light fixtures, fixtures, fluorescent fluorescent


Building Envelope:Building Envelope:•Brick veneer, stone, and curtain wallBrick veneer, stone, and curtain wall•EPDM single-ply roof membrane w/ white EPDM single-ply roof membrane w/ white acrylic coatingacrylic coating•Roof gardenRoof garden


Possible Limitations:Possible Limitations:•Learning curveLearning curve•TechnologyTechnology•ExperienceExperiencePossible Benefits:Possible Benefits:•Quicker constructionQuicker construction•Better coordinationBetter coordination•Shorter scheduleShorter schedule

BIM for Façade ConstructionBIM for Façade Construction


Survey Results:Survey Results:•Increase Increase Constructability?Constructability?•YesYes

• Structural analysisStructural analysis• CoordinationCoordination• DetailsDetails



Survey Results:Survey Results:•Increase Productivity?Increase Productivity?•YesYes

• CommunicationCommunication• Plan executionPlan execution



Survey Results:Survey Results:•Beneficial for Façade Beneficial for Façade Analysis/ Coordination?Analysis/ Coordination?•YesYes

• Quantifying materialsQuantifying materials• Understanding water Understanding water

infiltration and infiltration and energy lossenergy loss



Survey Results:Survey Results:•Learning curve = Learning curve = negative affects?negative affects?•NoNo

• Find right peopleFind right people



Survey Results:Survey Results:•Reduce cost of façade Reduce cost of façade construction?construction?•NeutralNeutral

• Saves on errorsSaves on errors• Increase in Increase in

productivityproductivity



Survey Results:Survey Results:•Most difficult parts:Most difficult parts:

• Level of detailsLevel of details• TrainingTraining• SubcontractorsSubcontractors


• Most beneficial parts:Most beneficial parts:• Increase field productivityIncrease field productivity• Managing costsManaging costs• Coordination Coordination


Conclusion:Conclusion:•Use for mock upsUse for mock ups•Not for complete modelNot for complete model



Prefabrication of Brick FacadePrefabrication of Brick Facade

Advantages:Advantages:•Shorter scheduleShorter schedule•Better qualityBetter quality•Possibly cheaperPossibly cheaper•constructabilityconstructability

Disadvantages:Disadvantages:•Possibly more expensivePossibly more expensive•StorageStorage



Brick Facade:Brick Facade:•Area = 33,472 SFArea = 33,472 SF•Schedule = 244 daysSchedule = 244 days•Original cost = $1.8 millionOriginal cost = $1.8 million


Materials:Materials:•8” CMU Backup8” CMU Backup•2” Insulation2” Insulation•Mortar NetMortar Net•WeepsWeeps•Brick VeneerBrick Veneer


Materials Excluded with Materials Excluded with Prefab:Prefab:•Mortar NetMortar Net•WeepsWeeps•Air CavityAir Cavity•Steel PlatesSteel Plates•CMU BackupCMU Backup


Thin Brick Prefab System:Thin Brick Prefab System:•Cold formed structural stud: 6" Cold formed structural stud: 6" 16 ga. 1-5/8" @ 16" o.c.16 ga. 1-5/8" @ 16" o.c.•5/8" sheathing5/8" sheathing•WP membraneWP membrane•ZZ•5/8" sheathing5/8" sheathing•LathLath•Scratch coatScratch coat•LaticreteLaticrete•Thin brickThin brick



New Advantages:New Advantages:•Shorter scheduleShorter schedule•Better qualityBetter quality•No air cavity, no leaksNo air cavity, no leaks•ConstructabilityConstructability

New Disadvantages:New Disadvantages:•More expensiveMore expensive



Panel Calculations:Panel Calculations:•Panel Area = 30’ x 7’ = 210 SFPanel Area = 30’ x 7’ = 210 SF

•# of panels = 33,472 SF / 210 SF= # of panels = 33,472 SF / 210 SF= 159 panels159 panels

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

30’ 7’



Comparison:Comparison:•Original:Original:

• Cost = $1.8 millionCost = $1.8 million• Schedule = 244 daysSchedule = 244 days

•Prefabricated:Prefabricated:• Cost = $3.2 millionCost = $3.2 million• Schedule = 178 daysSchedule = 178 days



Conclusion:Conclusion:•Too expensiveToo expensive•Not a fast track scheduleNot a fast track schedule


Mechanical BreadthMechanical Breadth

Original Wall Properties:Original Wall Properties:•R-value = 10.63R-value = 10.63•U-value = 0.094U-value = 0.094•Thickness = 16”Thickness = 16”

Prefab Wall Properties:Prefab Wall Properties:•R-value = 13.28R-value = 13.28•U-value = 0.075U-value = 0.075•Thickness = 11”Thickness = 11”



Heat Loss:Heat Loss:•Original DesignOriginal Design

• 176,384 BTU/HR176,384 BTU/HR•Prefab DesignPrefab Design

• 141,145 BTU/HR141,145 BTU/HR• 19.9% better19.9% better



Conclusion:Conclusion:•Prefab has better Prefab has better mechanical propertiesmechanical properties•Still too expensiveStill too expensive


ConclusionsConclusions

• Solar panels not economicalSolar panels not economical• BIM should have been used BIM should have been used

for mockupsfor mockups• Prefab definitely shortens the Prefab definitely shortens the

schedule and adds quality , schedule and adds quality , but too expensivebut too expensive


AcknowledmentsAcknowledmentsUniversity of Virginia:University of Virginia:•Fred DunnFred Dunn•Jeff MooreJeff Moore•Dee EadieDee Eadie

Gilbane Building CompanyGilbane Building Company•Mike Poulin, Project ExecutiveMike Poulin, Project Executive

ISEC, Inc.:ISEC, Inc.:•Matt HeistandMatt Heistand•Paul HarschPaul Harsch•Jim McAllisterJim McAllister Eastern Exterior Wall Systems Inc.:Eastern Exterior Wall Systems Inc.:•Wayne MartinWayne Martin

Clark NexsonClark Nexson•Jonathan WalkerJonathan Walker

Davis ConstructionDavis Construction

Balfour BeattyBalfour Beatty

Jacobs EngineeringJacobs Engineering

United States Army Corps EngineersUnited States Army Corps Engineers The Pennsylvania State University:The Pennsylvania State University:•FacultyFaculty

Questions?Questions?

emily couric clinical cancer center university of virginia charlottesville, va gilbane building co....

Documents

faade construction slide

faade analysis coordination

fluorescent slide

build slide

roomall air

building offices

linear accelerators

exam rooms