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����� 14 2009

• Proposal & Objectives– Interstitial Floors– Facade Redesign– Mechanical Relocation

• Building Background– Quick facts– Systems– Features

• Proposed Interstitial Floor Solution– Common Solution– Staggered Truss Integration– Removable Panel Design

– Concept– Design– Specifications

• Mechanical Relocation– Sizing– Ductwork

• Facade Design• Construction Schedule• Conclusion• Acknowledgements

2Proposal & Objectives Building Background Interstitial Floor Solution Mechanical Relocation Facade Redesign Construction Schedule Conclusions Acknowledgements

• Develop the most effective interstitial floor design for the B3C

• Provide  structural insight to the design• Determine the effects of the new floor system on other systems of the building. 

• Discover how structural systems may improve the sustainable aspects of the B3C

3Proposal & Objectives Building Background Interstitial Floor Solution Mechanical Relocation Facade Redesign Construction Schedule Conclusions Acknowledgements

• Size– Building square footage ‐ 530,000 sqft

• 162,300 sqft of patient bed space• 45,900 sqft of mechanical space• 114,900 sqft of procedural space

– Building height ‐ 180 ft• 10 stories above grade• 4 stories below grade

• Steel System– Moment Frame

• Exterior  “Tube” structure

– Sizes• Spanning 30ft on average up to 42 ft• Story heights generally 15ft• Sizes ranging form W10 to w36

• Floor Systems– Composite Steel Decking

• Lateral force transferring diaphragm

– Precast Hollow core• Lower levels to allow access for crane

• Facade • Material types

4Proposal & Objectives Building Background Interstitial Floor Solution Mechanical Relocation Facade Redesign Construction Schedule Conclusions Acknowledgements

• Commonly in laboratories and hospitals• Lightweight concrete floors• Low floor to floor heights• Allows for maximum space flexibility

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• Staggered truss design to reduce number of moment connections

• Hide the systems of the building

Proposal & Objectives Building Background Interstitial Floor Solution Mechanical Relocation Facade Redesign Construction Schedule Conclusions Acknowledgements

• Steel Frame• Rectangular HSS members• Tension members

• Floor Panels• Concore 2x2 panels

• Benefits • Ease of access to ceiling plenum

6Proposal & Objectives Building Background Interstitial Floor Solution Mechanical Relocation Facade Redesign Construction Schedule Conclusions Acknowledgements

• Panel Choices– All Steel– Concore

• Rack Design– Supports spaced at 6 feet– HSS vs T shape

7Proposal & Objectives Building Background Interstitial Floor Solution Mechanical Relocation Facade Redesign Construction Schedule Conclusions Acknowledgements

• Support Choices– Beams vs HSS– HSS vs T Shape

• Tension Members– Steel Rod vs Cable– Cost and flexibility

• Space to contain larger mechanical equipment• Isolation of air plenums

8Proposal & Objectives Building Background Interstitial Floor Solution Mechanical Relocation Facade Redesign Construction Schedule Conclusions Acknowledgements

• Looping maintained• Duct length decreased• Air quality increased• Still accessible through stairwell

9Proposal & Objectives Building Background Interstitial Floor Solution Mechanical Relocation Facade Redesign Construction Schedule Conclusions Acknowledgements

• Desired properties– Light emittance– Insulating properties

• Physical characteristics– Emphasized floors– Reference to surrounding buildings

10Proposal & Objectives Building Background Interstitial Floor Solution Mechanical Relocation Facade Redesign Construction Schedule Conclusions Acknowledgements

Facade Material ComparisonSystem Square Footage Cost per Square foot ($) CostGlass Facade 160000 36.95 $  5,912,000.00 

Glass & Metal Panel 160000 $  3,965,760.00 Glass 96000 36.95 $  3,547,200.00 

Metal 64000 6.54 $      418,560.00 

Facade Type Total Square Footage Weight (lb/sqft) Total Weight (lbs)All Glass 1600001/4" 3.27 5232001/2" 6.54 1046400

Glass and Metal 160000 7251201/2" Glass 96000 6.54 627840

Metal 64000 1.52 97280

• Concurrent trade work can be achieved • Time savings in the most time consuming portion of the schedule

• Time savings is equal to cost savings

11Proposal & Objectives Building Background Interstitial Floor Solution Mechanical Relocation Facade Redesign Construction Schedule Conclusions Acknowledgements

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Normal Schedule

One day Concurrent

Two days Concurrent

Three days Concurrent

60.7152.04

43.3734.69

Weeks to complete Mechanical and Interior Fitout

Weeks

• Most effective interstitial floor system for the B3C project is the removable panel system

• Mechanical and facade systems were affected by integration of interstitials

• Structural changes can make a positive impact on the sustainability of a building

12Proposal & Objectives Building Background Interstitial Floor Solution Mechanical Relocation Facade Redesign Construction Schedule Conclusions Acknowledgements

Thanks go out to:Dr. Boothby NBBJ  especially Pam HolmesPenn State friends, AE colleagues, and 419 friendsKate Family for their support 

13Proposal & Objectives Building Background Interstitial Floor Solution Mechanical Relocation Facade Redesign Construction Schedule Conclusions Acknowledgements

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