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Introduction 120,000 SF 10 Stories (90ft) $40 Million Aug. 2010 – Dec.2011

Project Team Owner: Health Research Architect & Engineer: General Contractor:. Presentation Outline Introduction Base Steel Redesign Progressive Collapse Tie Force Alternative Path Enhanced Local Resistance Architectural Breadth Conclusions.

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Introduction 120,000 SF 10 Stories (90ft) $40 Million Aug. 2010 – Dec.2011

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  1. Project Team Owner: Health Research Architect & Engineer: General Contractor: Presentation Outline Introduction Base Steel Redesign Progressive Collapse Tie Force Alternative Path Enhanced Local Resistance Architectural Breadth Conclusions Introduction120,000 SF10 Stories (90ft)$40 MillionAug. 2010 – Dec.2011

  2. Progressive CollapseUFC 4-023: Typical Action Classifications Alternative Path Analysis Presentation Outline Introduction Base Steel Redesign Progressive Collapse Tie Force Alternative Path Enhanced Local Resistance Architectural Breadth Conclusions Interaction Equation Moment Divided by m-factor Expected Strengths Used Typical Frames = 6

  3. Progressive CollapseWest Façade Column Alternative Path Analysis Presentation Outline Introduction Base Steel Redesign Progressive Collapse Tie Force Alternative Path Enhanced Local Resistance Architectural Breadth Conclusions

  4. Atrium Curtain Wall Redesigned Interior Atrium View Presentation Outline Introduction Base Steel Redesign Progressive Collapse Tie Force Alternative Path Enhanced Local Resistance Architectural Breadth Conclusions Architecture BreadthExisting Interior Atrium View

  5. Costs Progressive Collapse Requirements Slab Reinforcement: 596% Increase Columns: 113% Increase Beams: 9.9% Increase Total Superstructure: 7.4% Increase Presentation Outline Introduction Base Steel Redesign Progressive Collapse Tie Force Alternative Path Enhanced Local Resistance Architectural Breadth Conclusions ConclusionsGoals Design to UFC criteria Explore impacts of this analysis Minimal architectural impact

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