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Swedish American Hospital Heart and Vascular Center

Swedish American Hospital Heart and Vascular Center. Philip Frederick Structural Option AE Senior Thesis 15 April 2008. Presentation Outline. Project Background Site Plan Proposal Gravity Framing Lateral Framing Façade Analysis Conclusions/Recommendations.

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Swedish American Hospital Heart and Vascular Center

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  1. Swedish American Hospital Heart and Vascular Center Philip Frederick Structural Option AE Senior Thesis 15 April 2008

  2. Presentation Outline • Project Background • Site Plan • Proposal • Gravity Framing • Lateral Framing • Façade Analysis • Conclusions/Recommendations Philip Frederick Structural Option April 15 2008

  3. The Heart Hospital Project Information Location: Rockford, IL Floors: 4 stories (designed for 7) Floor Plate: 25,000SF per floor (175,000SF total) Project Team Owner: Swedish American Hospital Architect: Perkins + Will Architects Structural Engineer: Simpson Gumpertz and Heger Construction Management: Turner Construction Philip Frederick Structural Option April 15 2008

  4. Presentation Outline • Project Background • Site Plan • Proposal • Gravity Framing • Lateral Framing • Façade Analysis • Conclusions/Recommendations Philip Frederick Structural Option April 15 2008

  5. Site Plan Philip Frederick Structural Option April 15 2008

  6. Site Plan N Philip Frederick Structural Option April 15 2008

  7. Presentation Outline • Project Background • Site Plan • Proposal • Gravity Framing • Lateral Framing • Façade Analysis • Conclusions/Recommendations Philip Frederick Structural Option April 15 2008

  8. Goals Proposals • Depth Study • Reduce member sizes & steel cost • Reduce Drift Depth Study • Alternative Gravity Framing Layouts • Ordinary Steel Braced Frames • Breadth Study • Analyze Window Condensation • Breadth Study • Develop Repairs Philip Frederick Structural Option April 15 2008

  9. Presentation Outline • Project Background • Site Plan • Proposal • Gravity Framing • Lateral Framing • Façade Analysis • Conclusions/Recommendations Philip Frederick Structural Option April 15 2008

  10. Depth Study : Gravity Analysis Existing Framing Wing Framing Central Framing Wing Framing N Philip Frederick Structural Option April 15 2008

  11. Depth Study : Gravity Analysis Alternative Framing 1 3 1 3 2 4 4 2 Philip Frederick Structural Option April 15 2008

  12. Depth Study : Gravity Analysis Alternative Framing Philip Frederick Structural Option April 15 2008

  13. Depth Study : Gravity Analysis What does it take to reduce the weight of the gravity framing? Typ. Composite Beams vs Castellated Beams Philip Frederick Structural Option April 15 2008

  14. Depth Study : Gravity Analysis Typ. Composite Beams vs Castellated Beams Central Framing Only Existing Framing Layout Alt #4 Layout with Cast. Beams W = 565,174lbs 743 Members W = 559,337lbs 593 Members $427,715 $595,296 (*Charlie Carter) (*R.S. Means) Philip Frederick Structural Option April 15 2008

  15. Presentation Outline • Project Background • Site Plan • Proposal • Gravity Framing • Lateral Framing • Façade Analysis • Conclusions/Recommendations Philip Frederick Structural Option April 15 2008

  16. Depth Study : Lateral Analysis Proposed Braced Frames N Typ. Floor Plan Philip Frederick Structural Option April 15 2008

  17. Depth Study : Lateral Analysis Trial Brace Sizes • Assumptions: • 4 frames in each direction (x and y) • rigid diaphragm • 25% of lateral load dist. to each frame • Loads: • Vwind = 1045k • Veq = 978k Columns: W14x120 Beams: W16x50 Braces: HSS6x6x1/2 Philip Frederick Structural Option April 15 2008

  18. Depth Study : Lateral Analysis Proposed Braced Frames Philip Frederick Structural Option April 15 2008

  19. Depth Study : Lateral Analysis Prop. Braced Frames vs Ex. Moment Frames Columns: W14x120 Lat. Beam: W21x68 Braces: HSS6x6x3/8 to HSS8x6x5/8 Columns: W14x176 Lat. Beams: W27x146 H 3.6” 2.1” < = 3.0” 400 Philip Frederick Structural Option April 15 2008

  20. Depth Study : Lateral Analysis Ex. Moment Frames vs Prop. Braced Frames Philip Frederick Structural Option April 15 2008

  21. Estimated Cost $aving$ • Ex. Moment Frames • $3,752,385 • 1297 members • 38 days of construction(35 pieces/day) • Prop. Braced Frames • $2,342,422 • 1405 members • 21 days of construction(70 pieces/day) • Difference • -$1,409,963 • +108 members • -17 days of construction(70 pieces/day) Other Considerations for Savings: • Smaller Crane Size • Schedule Savings • Connections Philip Frederick Structural Option April 15 2008

  22. Presentation Outline • Project Background • Site Plan • Proposal • Gravity Framing • Lateral Framing • Façade Analysis • Conclusions/Recommendations Philip Frederick Structural Option April 15 2008

  23. Breadth Study : Facade • Issues: • moisture condensation • Drawings/Details: • Manufacturer’s detail • Construction Drawings • Existing Conditions • Solutions/Repairs: • Active • Passive Philip Frederick Structural Option April 15 2008

  24. Breadth Study : Facade Manufacturer’s Detail • Kawneer Windows • Kawneer 5500 Isoweb Window • Continuous Thermal Barrier • Insulation under sill Philip Frederick Structural Option April 15 2008

  25. Breadth Study : Facade Existing Conditions Exterior 15°f Interior 76°f 30%rh 42°f Philip Frederick Structural Option April 15 2008

  26. Breadth Study : Facade Proposed Solutions - Active • New Construction: • spec new window system • move existing window inboard • install insulation where needed • As - Built: • spec new window system • moving existing window inboard • remove sill/install insulation • heat trace Philip Frederick Structural Option April 15 2008

  27. Breadth Study : Facade New Window System ISOWEB 5500 Model ISOWEB 5525 Model • Kawneer 5525 Isoweb Window • minimizes discontinuity in the thermal barrier Philip Frederick Structural Option April 15 2008

  28. Breadth Study : Facade Move existing window inboard Philip Frederick Structural Option April 15 2008

  29. Breadth Study : Facade Install spray foam insulation below window frame Remove sill piece and install spray foam insulation below existing window frame Philip Frederick Structural Option April 15 2008

  30. Breadth Study : Facade Install Heat Trace along interior window frame Install prefabricated aluminum sill attachment over heat trace wire to create a heat sink Heat trace wire Philip Frederick Structural Option April 15 2008

  31. Breadth Study : Facade Proposed Solutions - Passive • As - Built: • Supply/direct more warm air from hvac ducts to window surface • Lower the relative humidity level (check building codes and ASHRAE standards) • Lower the temperature of the room Philip Frederick Structural Option April 15 2008

  32. Presentation Outline • Project Background • Site Plan • Proposal • Gravity Framing • Lateral Framing • Façade Analysis • Conclusions/Recommendations Philip Frederick Structural Option April 15 2008

  33. Conclusions : Depth Study Gravity Analysis • Existing framing is lighter than alternative framing plans • Castellated beams can reduce weight (5837lbs) – 39% increase in cost Structural Engineer chose the best gravity system layout Philip Frederick Structural Option April 15 2008

  34. Conclusions : Depth Study Lateral Analysis – Braced Frames • Reduces member sizes • Decreases weight of structural steel • Increases lateral stiffness • Reduces drift by 1.5” • Quicker construction Braced Frames are a suitable alternative to moment frames Philip Frederick Structural Option April 15 2008

  35. Conclusions : Breadth Study Façade Analysis Option 1:Reduce the relative humidity in patient rooms Option 2:Install Heat Trace along exposed edges of window sills • Least destructive • Inexpensive • Code dependant • Minimal construction • Most cost effective of active solutions • Third party consultant Philip Frederick Structural Option April 15 2008

  36. Statistics of Heart Failure % of thesis complete Time Thank You Questions? Philip Frederick Structural Option April 15 2008

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