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• 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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