Bryan A. QuinnBryan A. Quinn
Johns Hopkins University – Charles CommonsJohns Hopkins University – Charles Commons
Bryan A. Quinn
Construction Management
Advisor: Dr. Michael Horman
Bryan A. QuinnBryan A. Quinn
Johns Hopkins University – Charles CommonsJohns Hopkins University – Charles CommonsJohns Hopkins University Baltimore, MD
“Planning for Success Builds
Success”
Bryan A. QuinnBryan A. Quinn
Johns Hopkins University – Charles CommonsJohns Hopkins University – Charles Commons
Project BackgroundProject Background
DBOM/BOT Delivery ComparisonDBOM/BOT Delivery Comparison
Alternative Concrete Slab SystemsAlternative Concrete Slab Systems
Duct Rerouting/MEP CoordinationDuct Rerouting/MEP Coordination
OverviewOverview
Bryan A. QuinnBryan A. Quinn
Johns Hopkins University – Charles CommonsJohns Hopkins University – Charles CommonsProject BackgroundProject Background
Bryan A. QuinnBryan A. Quinn
Johns Hopkins University – Charles CommonsJohns Hopkins University – Charles Commons
Project StatisticsProject Statistics
Size: 313,000 sf, 618 bedsSize: 313,000 sf, 618 beds
Projected Cost: $54,000,000Projected Cost: $54,000,000
Projected Schedule: June ’04 - July ‘06 Projected Schedule: June ’04 - July ‘06
Project Delivery Method: Design-Bid-BuildProject Delivery Method: Design-Bid-Build
$67,000,000$67,000,000
June ’04 -Oct ‘06June ’04 -Oct ‘06
Project BackgroundProject Background
Owner
Contractor
A/E
Contract
Bryan A. QuinnBryan A. Quinn
Johns Hopkins University – Charles CommonsJohns Hopkins University – Charles Commons
Project BackgroundProject Background
DBOM/BOT Delivery ComparisonDBOM/BOT Delivery Comparison
Alternative Concrete Slab SystemsAlternative Concrete Slab Systems
Duct Rerouting/MEP CoordinationDuct Rerouting/MEP Coordination
OverviewOverview
Bryan A. QuinnBryan A. Quinn
Johns Hopkins University – Charles CommonsJohns Hopkins University – Charles Commons
DBOM/BOT Delivery ComparisonDBOM/BOT Delivery Comparison
GoalsGoals
Introduce owners to integrated Introduce owners to integrated delivery methodsdelivery methods
Apply research to reduce the Apply research to reduce the overall Charles Commons overall Charles Commons scheduleschedule
Create a model for which owners Create a model for which owners can attain success with more can attain success with more effective delivery decisionseffective delivery decisions
DBOM/BOTDBOM/BOT
Bryan A. QuinnBryan A. Quinn
Johns Hopkins University – Charles CommonsJohns Hopkins University – Charles Commons
Design-Build-Operate-Maintain (DBOM)Design-Build-Operate-Maintain (DBOM)
Build-Operate-Transfer (BOT)Build-Operate-Transfer (BOT)
Owner
Contractor
A/E
O&M Sub
BankContractor
A/E
Owner
O&M Sub
Contract
Contract
DBOM/BOTDBOM/BOT
Transfer after 15-30 Transfer after 15-30 yearsyears
Bryan A. QuinnBryan A. Quinn
Johns Hopkins University – Charles CommonsJohns Hopkins University – Charles Commons
Building Construction MarketBuilding Construction Market
Clackamas County Public Services BuildingClackamas County Public Services BuildingSchedule:Schedule: July 2003 – July 2004July 2003 – July 2004
Initial Cost:Initial Cost: $16.9 million$16.9 million
O&M Cost/year:O&M Cost/year: $96,408/year for 30 years$96,408/year for 30 years
DBIA AwardWinning
DBOM/BOTDBOM/BOT
Bryan A. QuinnBryan A. Quinn
Johns Hopkins University – Charles CommonsJohns Hopkins University – Charles Commons
Building Construction MarketBuilding Construction Market
UW Research & Technology BuildingUW Research & Technology BuildingSchedule:Schedule: July 2004 – March 2006July 2004 – March 2006
Initial Cost:Initial Cost: $29,850,000$29,850,000
O&M Cost/year:O&M Cost/year: $125,000/year for 30 years$125,000/year for 30 years
3D MEPCoordination
DBOM/BOTDBOM/BOT
Bryan A. QuinnBryan A. Quinn
Johns Hopkins University – Charles CommonsJohns Hopkins University – Charles Commons
Schedule ReductionSchedule Reduction
Saves Saves 10 10 monthmonthss
DBOM/BOTDBOM/BOT
Bryan A. QuinnBryan A. Quinn
Johns Hopkins University – Charles CommonsJohns Hopkins University – Charles Commons
Owner’s Guide to Delivery Method SelectionOwner’s Guide to Delivery Method Selection
DBOM/BOTDBOM/BOT
Bryan A. QuinnBryan A. Quinn
Johns Hopkins University – Charles CommonsJohns Hopkins University – Charles Commons
Delivery Method ComparisonDelivery Method Comparison
Issue DBB DB DBOM BOT
Team Interfaces
Design Changes
Best Value
Lifecycle/Green
Bonds/Guarantees
Owner’s Risk
Schedule Reduction
DBOMDBOMFavorable Fair Unfavorable
DBOM/BOTDBOM/BOT
Bryan A. QuinnBryan A. Quinn
Johns Hopkins University – Charles CommonsJohns Hopkins University – Charles Commons
Project BackgroundProject Background
DBOM/BOT Delivery ComparisonDBOM/BOT Delivery Comparison
Alternative Concrete Slab SystemsAlternative Concrete Slab Systems
Duct Rerouting/MEP CoordinationDuct Rerouting/MEP Coordination
OverviewOverview
Bryan A. QuinnBryan A. Quinn
Johns Hopkins University – Charles CommonsJohns Hopkins University – Charles Commons
Alternative Concrete Slab SystemsAlternative Concrete Slab Systems
GoalsGoals
Eliminate factors that upset the Eliminate factors that upset the success of the overall project success of the overall project
Recapture the cost and schedule Recapture the cost and schedule losseslosses
Improve the constructability of Improve the constructability of the St. Paul buildingthe St. Paul building
DBOM/BOTDBOM/BOT
Bryan A. QuinnBryan A. Quinn
Johns Hopkins University – Charles CommonsJohns Hopkins University – Charles Commons
Existing StructureExisting Structure
Post-tensioned slabs with drop capsPost-tensioned slabs with drop caps8” structural slab8” structural slab
29’ largest span29’ largest span
6’x6’ drop caps6’x6’ drop caps
Slab loadsSlab loadsLL: 125 psf LL: 125 psf
DLDLSuperimposedSuperimposed : 28 psf : 28 psf
DLDLSelfweightSelfweight: 100 psf: 100 psf
Structural SlabsStructural Slabs
NN
SS
EEWW
Bryan A. QuinnBryan A. Quinn
Johns Hopkins University – Charles CommonsJohns Hopkins University – Charles Commons
Existing StructureExisting Structure
Concrete StrengthsConcrete StrengthsColumnsColumns
1st-2nd floors: 8000 psi1st-2nd floors: 8000 psi
3rd-4th floors: 6000 psi3rd-4th floors: 6000 psi
5th-10th floors: 4000 psi5th-10th floors: 4000 psi
Slabs/Edge BeamsSlabs/Edge Beams
1st-2nd floors: 6000 psi1st-2nd floors: 6000 psi
3rd-10th floors: 4500 psi3rd-10th floors: 4500 psi
Shearwalls: 4000 psiShearwalls: 4000 psi
Structural SlabsStructural Slabs
Bryan A. QuinnBryan A. Quinn
Johns Hopkins University – Charles CommonsJohns Hopkins University – Charles Commons
Alternative Concrete Slab SystemsAlternative Concrete Slab SystemsFlat plate slabFlat plate slab
One-way beams with drop capsOne-way beams with drop caps
Precast plank on CIP beams & columnsPrecast plank on CIP beams & columns
Not considered:Not considered:
Flat plate slab with drop capsFlat plate slab with drop caps
Precast plank on precast beams & columnsPrecast plank on precast beams & columns
Structural SlabsStructural Slabs
Bryan A. QuinnBryan A. Quinn
Johns Hopkins University – Charles CommonsJohns Hopkins University – Charles Commons
Flat plate slabFlat plate slabACI 318, Table 9.5b: Live & ACI 318, Table 9.5b: Live & Long-term Deflections Long-term Deflections
Modeled Gravity, Wind & Modeled Gravity, Wind & Earthquake LoadsEarthquake Loads
14” thick, 4000 psi14” thick, 4000 psi
DLDLSelfweightSelfweight: 175 psf: 175 psf
Structural SlabsStructural Slabs
Bryan A. QuinnBryan A. Quinn
Johns Hopkins University – Charles CommonsJohns Hopkins University – Charles Commons
One-way beams with drop capsOne-way beams with drop capsACI 318, (9.5.2.1): clear span/28ACI 318, (9.5.2.1): clear span/28
Modeled Gravity LoadsModeled Gravity Loads
9” slab, 14” beam-joists @ 28”9” slab, 14” beam-joists @ 28”
DLDLSelfweightSelfweight: 160 psf: 160 psf
Structural SlabsStructural Slabs
Bryan A. QuinnBryan A. Quinn
Johns Hopkins University – Charles CommonsJohns Hopkins University – Charles Commons
Precast plank on CIP beams & columnsPrecast plank on CIP beams & columnsModeled Gravity LoadsModeled Gravity Loads
8”x4’ SpanDeck by Nitterhouse8”x4’ SpanDeck by Nitterhouse
24”x16” CIP beams24”x16” CIP beams
DLDLSelfweightSelfweight: 83 psf: 83 psf
Structural SlabsStructural Slabs
Bryan A. QuinnBryan A. Quinn
Johns Hopkins University – Charles CommonsJohns Hopkins University – Charles Commons
Value EngineeringValue Engineering
-$731,412 -$249,305 --$731,412 -$249,305 -$705,488$705,488
Structural SlabsStructural Slabs
Bryan A. QuinnBryan A. Quinn
Johns Hopkins University – Charles CommonsJohns Hopkins University – Charles Commons
Schedule ReductionSchedule Reduction
Saves 48 Saves 48 daysdays
Structural SlabsStructural Slabs
Bryan A. QuinnBryan A. Quinn
Johns Hopkins University – Charles CommonsJohns Hopkins University – Charles Commons
Constructability ReviewConstructability Review
Issue PT Flat Plate
One-way
Precast
Safety
Building Height
MEP Coordination
On-site Mistakes
Delivery/Laydown
Complexity
Value Engineering
Schedule Reduction
Flat PlateFlat Plate
Structural SlabsStructural Slabs
Bryan A. QuinnBryan A. Quinn
Johns Hopkins University – Charles CommonsJohns Hopkins University – Charles Commons
Project BackgroundProject Background
DBOM/BOT Delivery ComparisonDBOM/BOT Delivery Comparison
Alternative Concrete Slab SystemsAlternative Concrete Slab Systems
Duct Rerouting/MEP CoordinationDuct Rerouting/MEP Coordination
OverviewOverview
Bryan A. QuinnBryan A. Quinn
Johns Hopkins University – Charles CommonsJohns Hopkins University – Charles Commons
Duct Rerouting/MEP CoordinationDuct Rerouting/MEP Coordination
GoalsGoals
Recover losses from increased Recover losses from increased building height due to flat plate building height due to flat plate slab slab
Insure MEP Coordination success Insure MEP Coordination success by using a multi-dimensional by using a multi-dimensional modeling method modeling method
DBOM/BOTDBOM/BOT
Bryan A. QuinnBryan A. Quinn
Johns Hopkins University – Charles CommonsJohns Hopkins University – Charles Commons
Duct Rerouting & SizingDuct Rerouting & SizingCoordinate plenum spaceCoordinate plenum space
Six rerouted ductwork branchesSix rerouted ductwork branches
Air flowrateAir flowrate
Air velocity Air velocity
Friction losses Friction losses
Equivalent length of straight ductEquivalent length of straight duct
Pressure dropPressure drop
Duct ReroutingDuct Rerouting
Bryan A. QuinnBryan A. Quinn
Johns Hopkins University – Charles CommonsJohns Hopkins University – Charles Commons
Value EngineeringValue Engineering
Savings of 18” on total building heightSavings of 18” on total building heightSaved Building Cost: $396,000Saved Building Cost: $396,000
Six adjusted branches of ductworkSix adjusted branches of ductworkAdded Material Cost: $1,177Added Material Cost: $1,177
Duct ReroutingDuct Rerouting
Bryan A. QuinnBryan A. Quinn
Johns Hopkins University – Charles CommonsJohns Hopkins University – Charles Commons
2D & 3D MEP Coordination2D & 3D MEP CoordinationInterior Walls, HVAC, Plumbing, Electrical, SprinklerInterior Walls, HVAC, Plumbing, Electrical, Sprinkler
Difficulty dividing zones into equal work quantities Difficulty dividing zones into equal work quantities among tradesamong trades
First FloorFirst Floor Second FloorSecond Floor Third Third FloorFloor
MEP CoordinationMEP Coordination
Bryan A. QuinnBryan A. Quinn
Johns Hopkins University – Charles CommonsJohns Hopkins University – Charles Commons
4D MEP Coordination4D MEP Coordination
MEP CoordinationMEP Coordination
Bryan A. QuinnBryan A. Quinn
Johns Hopkins University – Charles CommonsJohns Hopkins University – Charles Commons
Duct Rerouting/MEP CoordinationDuct Rerouting/MEP Coordination
Issue 2D 3D 4D
Barriers to Entry
Software Deficiencies
Lack of Technicians
Ability to Eliminate Interferences
Team Communication
Ability to Eliminate Sequence Problems
3D3D
MEP CoordinationMEP Coordination
+ Duct Rerouting Saves $394,823
Bryan A. QuinnBryan A. Quinn
Johns Hopkins University – Charles CommonsJohns Hopkins University – Charles Commons
ConclusionConclusionHire an O&M contractor and use DBOM DBOM delivery
Saves on long-term costs & 10 months
Use flat-plate structural slabsflat-plate structural slabs
Saves $731,412 & 48 days
Use 3D3D for MEP coordination & rerouting ductwork
Saves $394,823
ConclusionConclusion
Bryan A. QuinnBryan A. Quinn
Johns Hopkins University – Charles CommonsJohns Hopkins University – Charles Commons
1.1. Show owners how to Show owners how to use the Integrated use the Integrated Project Delivery System Project Delivery System Selection Model.Selection Model.
2.2. Think simple. Design Think simple. Design structures that have structures that have little impact on other little impact on other systems.systems.
3.3. Use the right MEP Use the right MEP Coordination technology Coordination technology for your project.for your project.
4.4. But most of all, planning But most of all, planning for success now pays off for success now pays off later!later!
Bryan A. QuinnBryan A. Quinn
Johns Hopkins University – Charles CommonsJohns Hopkins University – Charles Commons
AcknowledgementsAcknowledgementsFellow AE studentsFellow AE students
Frank BurkeFrank Burke
Lourdes DiazLourdes Diaz
Jess LucasJess Lucas
Sean HowardSean Howard
Shawn JonesShawn Jones
AE AdvisorsAE AdvisorsDr. Michael HormanDr. Michael Horman
Prof. Kevin ParfittProf. Kevin Parfitt
Prof. Moses LingProf. Moses Ling
Pete DahlPete Dahl
Fellow SBER staffFellow SBER staffAlly DiazAlly Diaz
Dominic WikerDominic Wiker
Mike DiProspero, JHU Mike DiProspero, JHU Office of Facilities Office of Facilities ManagementManagement
John Whitlow & Jon John Whitlow & Jon Szczeniak, CollinsWoermanSzczeniak, CollinsWoerman
My Mom & DadMy Mom & Dad
Mike SynnottMike Synnott
Kristen EashKristen Eash
Alexis PacellaAlexis Pacella
Jenny HampJenny Hamp
Jayme AntolikJayme Antolik
Bryan A. QuinnBryan A. Quinn
Johns Hopkins University – Charles CommonsJohns Hopkins University – Charles Commons
Questions?Questions?
Bryan A. QuinnBryan A. Quinn
Johns Hopkins University – Charles CommonsJohns Hopkins University – Charles Commons
Examples of Site CongestionExamples of Site Congestion
Bryan A. QuinnBryan A. Quinn
Johns Hopkins University – Charles CommonsJohns Hopkins University – Charles Commons
Public IPDSSPublic IPDSS
Bryan A. QuinnBryan A. Quinn
Johns Hopkins University – Charles CommonsJohns Hopkins University – Charles Commons
Direct Design Method, ACI 318-05 Section Direct Design Method, ACI 318-05 Section 13.6.113.6.1
In each condition, there are at least four spans in In each condition, there are at least four spans in all directionsall directions
The most drastic rectangular bay is 17’ x 29’, The most drastic rectangular bay is 17’ x 29’, which has a lwhich has a l22/l/l11 = 1.71 < 2.0 = 1.71 < 2.0
The most drastic shift in span length between two The most drastic shift in span length between two adjacent spans is 9’, or 31%, less than one-third of adjacent spans is 9’, or 31%, less than one-third of the largest spanthe largest span
Columns are offset 6”-3’ from the building gridColumns are offset 6”-3’ from the building grid
There are only a few instances of cantilevers and There are only a few instances of cantilevers and irregular column grids, which would be assessed irregular column grids, which would be assessed individuallyindividually
Bryan A. QuinnBryan A. Quinn
Johns Hopkins University – Charles CommonsJohns Hopkins University – Charles Commons
Column Layout for One-way Beams and Precast Column Layout for One-way Beams and Precast PlankPlank
Beams/Plank run East-Beams/Plank run East-WestWest
Bryan A. QuinnBryan A. Quinn
Johns Hopkins University – Charles CommonsJohns Hopkins University – Charles Commons
Existing Mechanical SystemExisting Mechanical System
CAV, All-air systemCAV, All-air system
Localized gas furnaces for apartmentsLocalized gas furnaces for apartments
Bryan A. QuinnBryan A. Quinn
Johns Hopkins University – Charles CommonsJohns Hopkins University – Charles Commons
Duct Rerouting ExampleDuct Rerouting Example
26”x12” supply duct rerouted through 26”x12” supply duct rerouted through mechanical room to not impede massive mechanical room to not impede massive 60”x24” return duct 60”x24” return duct
Bryan A. QuinnBryan A. Quinn
Johns Hopkins University – Charles CommonsJohns Hopkins University – Charles Commons
Duct Rerouting Example ContinuedDuct Rerouting Example Continued
Branch pressure drops were maintained in Branch pressure drops were maintained in rerouted casererouted case
Bryan A. QuinnBryan A. Quinn
Johns Hopkins University – Charles CommonsJohns Hopkins University – Charles Commons
Examples of 3D MEP CoordinationExamples of 3D MEP Coordination
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