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Caitlin Ferrell Structural Option Senior Thesis Presentation Spring 2006

This presentation provides an overview of the depth study on alternative floor systems and the breadth study on mechanical and acoustics for the Erie Convention Center & Sheraton Hotel project in Erie, Pennsylvania.

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Caitlin Ferrell Structural Option Senior Thesis Presentation Spring 2006

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  1. The Erie Convention Center and Sheraton Hotel Erie, Pennsylvania Caitlin FerrellStructural OptionSenior Thesis PresentationSpring 2006 Architectural Engineering The Pennsylvania State University

  2. PresentationOverview • Project Background • Depth Study: • Two alternative floor systems • Staggered truss system design • Breadth Study • Mechanical • Acoustics

  3. Project BackgroundBuilding Statistics • Size- • 11 stories • 132,000 sq.ft. • 200 guestrooms • Part of the Bayfront Convention Center Complex • $62 million + local business contributions • Expected completion date: Summer 2007

  4. Project BackgroundThe Site

  5. Project BackgroundExisting Structure

  6. Project BackgroundExisting Structure Bracing allows for ribbon windows

  7. PresentationOverview • Project Background • Depth Study • Two alternative floor systems • Staggered truss system design • Breadth Study • Mechanical • Acoustics

  8. Depth StudyProposal • Need for open floor plans on lower levels • Quick and inexpensive construction • Lateral resistance to wind in N/S direction • Hotel provides a regular pattern with a single corridor on the upper floors Staggered Truss System

  9. Depth StudyAlternate Floor Systems Precast Plank 8” hollow-core precast plank with 2” topping vs. Steel Joist with Deck and Slab 22K7 (lower floors), 18K4 (upper floors) 22 Ga. 1.5” Composite Deck w/ 4” NW slab

  10. Depth StudyStaggered Truss System

  11. Depth StudyStaggered Truss System Only 2 Column Lines A- Odd Floors B- Even Floors

  12. Depth StudyStaggered Truss System Vierendeel panel allows for corridor

  13. Depth StudyStaggered Truss System

  14. Depth StudyStaggered Truss System

  15. Depth StudyStaggered Truss System HSS10×6×5/16 W12×96 W10×33 HSS10×6×5/16 Spandrel Beams: Joist System-W18×50 Plank System- W21×55 W14’s

  16. Depth StudyStaggered Truss System • Controlling Load Combinations • N/S: 1.2D+1.6W+1.0L+0.5R • E/W: 1.2D+1.0E+1.0L+0.2S • Building Drift (N/S Direction) • Precast Plank System- 2.8” • Joist System – 1.68” • Allowable Drift • H/400 • 3.96”

  17. Depth StudyAlternate Floor Systems Precast Plank Slightly Larger Members vs. Steel Joist with Deck and Slab Adds 1’ to each floor11’ total

  18. Depth StudyStaggered Truss System • Additional Factors: • Erection and Coordination of Trades • Foundations • Fire Resistance • Architecture

  19. Depth StudyStructural Costs

  20. Depth StudyStructural Costs

  21. Depth StudyStructural Conclusions Savings of: $89,966.43 Shorter field erection time

  22. PresentationOverview • Project Background • Depth Study • Two alternative floor systems • Staggered truss system design • Breadth Study • Mechanical • Acoustics

  23. Breadth Study-MechanicalOpen-Loop Geothermal Heat Pump Existing System: air to air through the wall units Proposed System: air to water system • Higher COP (Coefficient of Performance) • Saves 6.58 x 105 kWh in heating per year • Saves 7.52 x 105 kWh in cooling per year • Cost of electricity in PA at $0.0873/kWh • Additional energy needed to pump water from lake $119,752.85 saved per year

  24. Breadth StudyOpen-Loop Geothermal Heat Pump Initial Costs: • Drilling, pipe, pumps, strainer, labor • $27,608.82 3 month payback period

  25. Breadth Study-AcousticsSound Transmission Through Guestroom Walls Wall Construction: 2 layers 5/8” gypsum board, 3-5/8” metal studs, 3” fiberglass insulation

  26. Breadth Study-AcousticsSound Transmission Through Guestroom Walls Wall Construction: 2 layers 5/8” gypsum board, 3-5/8” metal studs, 3” fiberglass insulation

  27. Breadth Study-AcousticsSound Transmission Through Guestroom Walls

  28. Thank You Questions?

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