Mike Steehler Mike Steehler Structural Focus Structural Focus 2007 Senior Thesis Capstone Project 2007 Senior Thesis Capstone Project Advisor: Prof. Kevin Parfitt Advisor: Prof. Kevin Parfitt University of Rochester Biomedical Engineering / Optics Building University of Rochester Biomedical Engineering / Optics Building River Campus Rochester, NY River Campus Rochester, NY
Presentation Outline Presentation Outline Structural Redesign • Redesign Ideas Considered Project Background • Cast-In-Place Concrete Flat Slab • Concrete Columns • Brief History • Reinforced Concrete Shear Walls • Architecture • Notable Advantages • Key Players Cost & Scheduling Effects Original Structural Design • Foundations Green Building Design • Composite Steel Framing • ETFE Foil Cushion as a “Green” • Braced Frames / Moment Frames Technology • Application for BMEO Atrium Roof Problem Statement / Proposal Recommendation / Conclusions
Project Background Project Background
• Founded in 1929 as the first optics education program in the United • Project States Background • Has expanded into a diverse • Original Structural spectrum of studies, including Design Biomedical Optics, Fiber Optics, and Nano Optics to name a few • Problem Statement / Proposal • This world-class institute will combine with the Biomedical • Structural Engineering Department to occupy Redesign a new, 100,000 square foot facility • Cost & Scheduling • New facility will be an add-on to the Effects existing Wilmot Hall • Green Building Design • Recommendati University of Rochester on & BMEO Conclusions 2007 AE Senior Thesis Mike Steehler
The New Facility The New Facility • U of R’s scenic River Campus • Project – Near Medical Center Background – Adjacent to Wilmot Hall • 101,000 square feet • Original Structural • Five stories + mechanical Design penthouse and partial basement • Problem • $37.7 million total project cost Statement / • Construction began January Proposal 2005 • Structural • Officially named “Goergen Hall” Redesign for the generous contributions of Robert B. Goergen • Cost & Scheduling Effects • Laboratory space • Green Building Design • Offices • • Classrooms Recommendati University of Rochester • Large, 155 seat lecture hall on & BMEO Conclusions 2007 AE Senior Thesis Mike Steehler
Key Players Key Players Architect • Project Background Perkins & Will Boston, MA • Original Structural Design Structural Engineer • Problem LeMessurier Consultants Statement / Cambridge, MA Proposal • Structural Associate Architect/ Redesign Structural Engineer • Cost & SWBR Architects & Engineers, P.C. Scheduling Effects Rochester, NY • Green Building Design General Contractor • LeChase Construction, LLC Recommendati University of Rochester on & BMEO Rochester, NY Conclusions 2007 AE Senior Thesis Mike Steehler
Architectural Features Architectural Features • Project • Standard red brick façade Background • Metal stud backup • Original Structural • Limestone at first floor Design • Problem Statement / • Large atrium inside main entrance Proposal • 80+ feet tall • Structural Redesign • Lit by skylights • Cost & Scheduling • Channel glass façade at stairwells Effects • Green Building Design • Glass curtain wall at main entrance • Recommendati University of Rochester on & BMEO Conclusions 2007 AE Senior Thesis Mike Steehler
Original Structural Design Original Structural Design
Foundation Foundation •Project • 50 ksi steel H-piles Background • Bearing on Bedrock • Original Structural • Various Configurations Design • 4000 psi Grade Beams • Problem Statement / • 16” x 48” supporting exterior walls Proposal • Framing around existing steam tunnel • Structural Redesign • Cost & Scheduling Effects • Green Building Design • Recommendation & Conclusions University of Rochester BMEO 2007 AE Senior Thesis Mike Steehler
Floor System Floor System • Composite steel construction •Project Background • 4 ½“ concrete slab on 3” metal deck (7 ½“ total depth) • Original Structural • ¾ diameter shear studs, full Design composite action • Problem Statement / • Irregular geometric shape – no Proposal “typical bay” redundancy • Structural • 21’ x 26’-6” bays along west face Redesign can be considered the critical • Cost & Scheduling Effects condition • Green Building • Supported by W12 columns Design • Recommendation & Conclusions University of Rochester BMEO 2007 AE Senior Thesis Mike Steehler
Floor System Floor System •Project Background • Original Structural Design • Problem Statement / Proposal • Structural Redesign • Cost & Scheduling Effects • Green Building Design • Recommendation & Conclusions University of Rochester BMEO 2007 AE Senior Thesis Mike Steehler
Floor System Floor System •Project Background • Original Structural Design • Problem Statement / Proposal • Structural Redesign • Cost & Scheduling Effects • Green Building Design • Recommendation & Conclusions University of Rochester BMEO 2007 AE Senior Thesis Mike Steehler
Braced Frames Braced Frames 4 concentrically braced frames support the building •Project in the short, East-West direction Background • Original Structural Design • Problem Statement / Proposal • Structural Redesign • Cost & Scheduling Effects • Green Building Design • Recommendation & Conclusions University of Rochester BMEO 2007 AE Senior Thesis Mike Steehler
Braced Frames Braced Frames •Project Braced frame locations Background • Original Structural Design • Problem Statement / Proposal • Structural Redesign • Cost & Scheduling Effects • Green Building Design • Recommendation & Conclusions University of Rochester BMEO 2007 AE Senior Thesis Mike Steehler
Moment Frames Moment Frames •Project • 4 Moment frames support the building in the Background long, North-South direction • Original • Located along building faces Structural Design • Problem Statement / Proposal • Structural Redesign • Cost & Scheduling Effects • Green Building Design • Recommendation & Conclusions University of Rochester BMEO 2007 AE Senior Thesis Mike Steehler
Moment Frames Moment Frames • Columns at east face of building not continuous to •Project foundation Background • Provide column free space to lecture hall • Original Structural • Also part of a moment frame Design • Bracing members form a horizontal truss to transfer lateral • Problem Statement / load Proposal • Structural Redesign • Cost & Scheduling Effects • Green Building Design • Recommendation & Conclusions University of Rochester BMEO 2007 AE Senior Thesis Mike Steehler
Lateral System Lateral System •Project Background • Original Structural Design • Problem Statement / Proposal • Structural Redesign • Cost & Scheduling Effects • Green Building Design • Recommendation & Conclusions University of Rochester BMEO 2007 AE Senior Thesis Mike Steehler
Problem Statement / Proposal Problem Statement / Proposal
Problem Statement Problem Statement Pros •Project Background • Existing steel design works well with the architecture • Original Structural • Steel framing is common in the area Design • Problem • Nature of steel makes design process relatively easy Statement / Proposal Cons • Structural Redesign • Several notable areas of BMEO would work better in • Cost & Scheduling Effects concrete • Green Building •Amount of steel seems excessive for the size of the Design building • Recommendation & Conclusions • About 1300 members weighing 300 tons • Over 6000 shear studs University of Rochester • Over 400 moment connections BMEO 2007 AE Senior • 7 ½“ concrete to achieve full composite action Thesis Mike Steehler
Proposal Proposal What if BMEO was an all concrete structure? •Project Background Goals: • Original Structural Design • Gain a better understanding of concrete • Problem design Statement / Proposal • Design a complete, economical, and structurally sound concrete building • Structural Redesign • Cost & Scheduling • Compare concrete design with steel framing Effects for a building of irregular geometry • Green Building • Analyze BMEO as a “green”, environmentally Design friendly building • Recommendation & Conclusions University of Rochester BMEO 2007 AE Senior Thesis Mike Steehler
Structural Redesign Structural Redesign
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