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Carl Hubben – Structural Option Ae senior thesis - 2011

Office Building-G EASTERN UNITED STATES. Carl Hubben – Structural Option Ae senior thesis - 2011. Outline. Office Building-G Eastern United States. Carl Hubben Structural Option. Project Information Existing Structure Project Goals Structural Depth Architectural Breadth Conclusions.

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Carl Hubben – Structural Option Ae senior thesis - 2011

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  1. Office Building-G EASTERN UNITED STATES Carl Hubben – Structural Option Ae senior thesis - 2011

  2. Outline Office Building-G Eastern United States Carl Hubben Structural Option Project Information Existing Structure Project Goals Structural Depth Architectural Breadth Conclusions

  3. Office Building-G Eastern United States Carl Hubben Structural Option Project Information Existing Structure Project Goals Structural Depth Architectural Breadth Conclusions Project Information

  4. Project Information Office Building-G Eastern United States Carl Hubben Structural Option Project Information Existing Structure Project Goals Structural Depth Architectural Breadth Conclusions Owner Restrictions: Occupancy Type: Square Footage: Project Cost: Number of Stories: Project details cannot be disclosed Mixed use office 649,641 sf $70,000,000 14 levels of office space 4 levels of parking below grade

  5. Office Building-G Eastern United States Carl Hubben Structural Option • Project Information • Existing Structure • Foundation • Superstructure • Project Goals • Structural Depth • Architectural Breadth • Conclusions Existing Structure

  6. Carl Hubben Structural Option Foundation Office Building-G Eastern United States Key Points • Project Information • Existing Structure • Foundation • Superstructure • Project Goals • Structural Depth • Architectural Breadth • Conclusions • Spread Footings • Up to 3100 axial kips • Parking garage and superstructure • Perimeter Foundation Wall Figure 8

  7. Superstructure Office Building-G Eastern United States Carl Hubben Structural Option Key Points • Project Information • Existing Structure • Foundation • Superstructure • Project Goals • Structural Depth • Architectural Breadth • Conclusions Existing Core • Cast in place reinforced concrete • Post-tensioned girders with 7” thick one-way slab • Structural depth of 18” • Exposed round and rectangular columns • 10” thick shear wall core

  8. Office Building-G Eastern United States Carl Hubben Structural Option Project Information Existing Structure Project Goals Structural Depth Architectural Breadth Conclusions Project Goals

  9. Project Goals Office Building-G Eastern United States Carl Hubben Structural Option Project Information Existing Structure Project Goals Structural Depth Architectural Breadth Conclusions • Column Free Space • Remove Shear Wall Core • Maintain Floor to Floor Height • Determine Architectural Impacts

  10. Office Building-G Eastern United States Carl Hubben Structural Option • Project Information • Existing Structure • Project Goals • Structural Depth • Loads • Floor System • Columns • Lateral System • Connections • Architectural Breadth • Conclusions Structural Depth

  11. Loads Office Building-G Eastern United States Carl Hubben Structural Option • Project Information • Existing Structure • Project Goals • Structural Depth • Loads • Floor System • Columns • Lateral System • Connections • Architectural Breadth • Conclusions Wind: Seismic: Flexible Structure Reduced Dead Load New Lateral System

  12. Floor System Office Building-G Eastern United States Carl Hubben Structural Option Floor Slab Framing Plan • Project Information • Existing Structure • Project Goals • Structural Depth • Loads • Floor System • Columns • Lateral System • Connections • Architectural Breadth • Conclusions Composite and Composite Castellated Beams • Composite metal decking • 4 ½” total thickness

  13. Floor System Office Building-G Eastern United States Carl Hubben Structural Option Castellated Beam Design Secondary Forces Primary Forces • Project Information • Existing Structure • Project Goals • Structural Depth • Loads • Floor System • Columns • Lateral System • Connections • Architectural Breadth • Conclusions • Spans range between 45’ – 65’ • Vierendeel Bending • Primary and secondary forces

  14. Floor System Office Building-G Eastern United States Carl Hubben Structural Option Existing Design Redesign • Project Information • Existing Structure • Project Goals • Structural Depth • Loads • Floor System • Columns • Lateral System • Connections • Architectural Breadth • Conclusions

  15. Columns Office Building-G Eastern United States Carl Hubben Structural Option General • Project Information • Existing Structure • Project Goals • Structural Depth • Loads • Floor System • Columns • Lateral System • Connections • Architectural Breadth • Conclusions 12 Lateral Columns 23 Gravity Columns Located on the façade or around vertical transportation ~40’ between columns on exterior W14 Sizes

  16. Lateral System Office Building-G Eastern United States Carl Hubben Structural Option North Elevation General • Project Information • Existing Structure • Project Goals • Structural Depth • Loads • Floor System • Columns • Lateral System • Connections • Architectural Breadth • Conclusions Concentrically Braced 8 Chevron Frames Span 2 floors V and inverted V design Symmetrical Design

  17. Lateral System Office Building-G Eastern United States Carl Hubben Structural Option Yellow Brace Green Brace Design • Project Information • Existing Structure • Project Goals • Structural Depth • Loads • Floor System • Columns • Lateral System • Connections • Architectural Breadth • Conclusions HSS14X14 Braces: 1/2 5/16 Load Combination: 1.2D + 0.5L + 0.5Lr + 1.0E Overstrength and redundancy factor: Ωo = 2.0, ρ = 1.0 Top Floor Deflection: H/400, 5.2” < 5.3” Inherent Torsion: CM-CR = 6.7’ 3/8 5/16 1/2 3/8 Beam Size: W27X161 Beam Size: W27X94 1/2 5/16 5/8 1/2 1/2 1/2 5/8 5/8

  18. Connections Office Building-G Eastern United States Carl Hubben Structural Option Limit States • Gusset Limit States: • Tension Yielding • Tension Rupture • Local Buckling • Gusset/Beam Limit States: • Weld Rupture • Base Metal Strength • Gusset • Beam • Beam Limit States: • Web Tension Yielding • Web Crippling • Web Buckling • Project Information • Existing Structure • Project Goals • Structural Depth • Loads • Floor System • Columns • Lateral System • Connections • Architectural Breadth • Conclusions • Brace Limit States: • Tension Yielding • Tension Rupture • Brace/Gusset Limit States: • Weld Rupture • Base Metal Strength • Brace • Gusset North Elevation West Elevation

  19. Office Building-G Eastern United States Carl Hubben Structural Option Project Information Existing Structure Project Goals Structural Depth Architectural Breadth Conclusions Architectural Breadth

  20. Architecture Breadth Office Building-G Eastern United States Carl Hubben Structural Option Exterior Plan View Floor Section Project Information Existing Structure Project Goals Structural Depth Architectural Breadth Conclusions

  21. Office Building-G Eastern United States Carl Hubben Structural Option Project Information Existing Structure Project Goals Structural Depth Architectural Breadth Conclusions Conclusions

  22. Conclusions Office Building-G Eastern United States Carl Hubben Structural Option Goals: Disadvantages: Project Information Existing Structure Project Goals Structural Depth Architectural Breadth Conclusions • Column Free Space • Remove Shear Wall Core • Maintain Floor to Floor Height • Determine Architectural Impacts More Coordination Increased Cost Foundation Impacts

  23. Acknowledgements Office Building-G Eastern United States Carl Hubben Structural Option Turner Construction Company: Carlos Flores Ryan-Biggs Associates: Chris Latreille The Pennsylvania State University: Dr. Ali Memari Dr. Linda Hanagan Dr. Louis Geschwindner Robert Holland Kevin Parfitt I would also like to give a special thanks to my friends and family for their help and support throughout the year. Project Information Existing Structure Project Goals Structural Depth Architectural Breadth Conclusions

  24. Questions Office Building-G Eastern United States Carl Hubben Structural Option

  25. Yellow Brace Green Brace HSS14X14 Braces: 1/2 5/16 3/8 5/16 1/2 3/8 Beam Size: W27X161 Beam Size: W27X94 1/2 5/16 5/8 1/2 1/2 1/2 5/8 5/8

  26. Brace Limit States: • Tension Yielding • Tension Rupture • Brace/Gusset Limit States: • Weld Rupture • Base Metal Strength • Brace • Gusset • Gusset Limit States • Tension Yielding • Tension Rupture • Local Buckling • Gusset/Beam Limit States • Weld Rupture • Base Metal Strength • Gusset • Beam • Beam • Web Tension Yielding • Web Crippling • Web Buckling • Shear Yielding • Beam/End Plate • Weld Rupture • Base Metal Strength • Beam • End Plate • End Plate Limit States • Gross Shear • Net Shear • Block Shear • Angle Limit States • Prying Effects • Shear Yielding • Shear Rupture • Block Shear • Bolt • Shear • Tension • Bearing and Tear Out • Gusset/Plate • Weld Rupture • Base Metal Strength • Gusset • Plate • Plate • Plate bending • Plate/Column • Weld Rupture • Base Metal Strength • Plate • Column • Column • Local Flange Yielding • Local Flange Bending • Local Flange Crippling

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