Christopher Barron Construction Analysis 2: Green Roof Addition - PowerPoint PPT Presentation

Penn State AE Senior Capstone PRESENTATION OUTLINE Project  Project Introduction  Analysis 1: Curtain Wall Timeline Christopher Barron Construction  Analysis 2: Green Roof Addition  Structural Breadth Management  Mechanical Breadth  Analysis 3: Prefabrication CM Advisor – Dr. Anumba  Summary of Analyses  Acknowledgements

Location: Dover Delaware Phase two expansion PRESENTATION OUTLINE  Project Introduction • Existing Facility  Analysis 1: Curtain Wall Timeline • Podium Building  Analysis 2: Green Roof Addition Welcome Center  Emergency Structural Breadth Department  Mechanical Breadth Integrated Cancer  Analysis 3: Prefabrication Center  Summary of Analyses • Parking Garage  • Bridge Acknowledgements • Central Service Building

Location: Dover Delaware Phase two expansion PRESENTATION OUTLINE  Project Introduction • Existing Facility  Analysis 1: Curtain Wall Timeline • Podium Building  Analysis 2: Green Roof Addition Welcome Center  Emergency Structural Breadth Department  Mechanical Breadth Integrated Cancer  Analysis 3: Prefabrication Center  Summary of Analyses • Parking Garage  • Bridge Acknowledgements • Central Service Building

Location: Dover Delaware Phase two expansion PRESENTATION OUTLINE  Project Introduction • Existing Facility  Analysis 1: Curtain Wall Timeline • Podium Building  Analysis 2: Green Roof Addition Welcome Center  Emergency Structural Breadth Department  Mechanical Breadth Integrated Cancer  Analysis 3: Prefabrication Center  Summary of Analyses • Parking Garage  • Bridge Acknowledgements • Central Service Building

Location: Dover Delaware Phase two expansion PRESENTATION OUTLINE  Project Introduction • Existing Facility  Analysis 1: Curtain Wall Timeline • Pavilion Building  Analysis 2: Green Roof Addition Welcome Center  Emergency Structural Breadth Department  Mechanical Breadth Integrated Cancer  Analysis 3: Prefabrication Center  Summary of Analyses • Parking Garage  • Bridge Acknowledgements • Central Service Building

Location: Dover Delaware Phase two expansion PRESENTATION OUTLINE  Project Introduction • Existing Facility  Analysis 1: Curtain Wall Timeline • Pavilion Building  Analysis 2: Green Roof Addition Welcome Center  Emergency Structural Breadth Department  Mechanical Breadth Integrated Cancer  Analysis 3: Prefabrication Center  Summary of Analyses • Parking Garage  • Bridge Acknowledgements • Central Service Building

Podium Building PRESENTATION OUTLINE - Function: Hospital  Project Introduction  - Size: 215,000 sq ft Analysis 1: Curtain Wall Timeline  Analysis 2: Green Roof Addition - Building Cost: GMP 65 million  Structural Breadth  Mechanical Breadth - Construction Dates: Oct 7, 2008 – AUG 19, 2011  Analysis 3: Prefabrication  - Delivery Method: Design-Bid-Build CM Agency Summary of Analyses  Acknowledgements

Structural System Building Facade PRESENTATION OUTLINE  Project Introduction - Braced frame - Schuco FW 60 Mullion- Transom System  Analysis 1: Curtain Wall Timeline - Bay size 30’ X 30’  Analysis 2: Green Roof Addition - Masonry brick  Structural Breadth - Oversized system  Mechanical Breadth - Preformed metal siding  Analysis 3: Prefabrication  Summary of Analyses  Acknowledgements

Problem Statement PRESENTATION OUTLINE  Project Introduction - Conflicting waterproofing systems of the three  façade systems made it difficult to get the Analysis 1: Curtain Wall Timeline podium b uilding’s enclosure watertight  Analysis 2: Green Roof Addition  Structural Breadth Goal  Mechanical Breadth  Analysis 3: Prefabrication - Study the current façade system used  Summary of Analyses FW 60 Mullion-Transom - Investigate the reason why making it water tight  Acknowledgements became so problematic System - Construct timeline to portray events - Summarize events

Lack of design → - 70% designed when project was bid Issue Discovered PRESENTATION OUTLINE  Project Introduction Sequencing  Analysis 1: Curtain Wall Timeline - In order for waterproof system to work, the metal Reactions  panels needed to be installed before curtain wall Analysis 2: Green Roof Addition - Designed for curtain wall to be installed before metal  Structural Breadth panels  Mechanical Breadth How Issued Was Solved  Analysis 3: Prefabrication Space constraints  Summary of Analyses - In order to build to specifications, the brick  waterproofing would have needed to be installed in a Acknowledgements Recommendations 5/8” caulking joint

Owner/ Architect Issue Discovered PRESENTATION OUTLINE  Project Introduction - Did not want to change curtain walls appearance  - Brought skin consultant on Analysis 1: Curtain Wall Timeline → Reactions  Analysis 2: Green Roof Addition Whiting-Turner  Structural Breadth - Wanted to change to a similar curtain wall system  Mechanical Breadth - Would have eliminated tying ABV into brick How Issued Was Solved  Analysis 3: Prefabrication - Less fabrication time  Summary of Analyses  Acknowledgements Recommendations

Watertight Wall was Erected Issue Discovered PRESENTATION OUTLINE  Project Introduction - Built behind curtain wall  - Kept project’s schedule critical path on track Analysis 1: Curtain Wall Timeline Reactions  Analysis 2: Green Roof Addition Additional Waterproofing Measures Taken  Structural Breadth  Mechanical Breadth → - AVB wrapped into all sides of the building How Issued Was Solved  Analysis 3: Prefabrication - Stainless steel flashing  - Any further gaps were caulked shut Summary of Analyses  Acknowledgements Recommendations

Issue Discovered PRESENTATION OUTLINE Summary  Project Introduction  Analysis 1: Curtain Wall Timeline - Over $400,000 in design changes added Reactions  - Additional 6 Weeks Added to the Project Schedule Analysis 2: Green Roof Addition  Structural Breadth Recommendations  Mechanical Breadth How Issued Was Solved  Analysis 3: Prefabrication - Better collaboration between all parties  Summary of Analyses - Switch to alternative system  - Bring CM onto project earlier Acknowledgements → Recommendations

PRESENTATION OUTLINE Problem Statement  Project Introduction - Few sustainable ideas implemented on the Bayhealth  Analysis 1: Curtain Wall Timeline Medical Center Expansion  Analysis 2: Green Roof Addition  Structural Breadth Goal  Mechanical Breadth - Study green roof technology, and then determine its  Analysis 3: Prefabrication cost effectiveness on this project - Located on the Third Floor  Summary of Analyses  Acknowledgements - Total 28,000 SQ FT

System Chosen PRESENTATION OUTLINE Growth Media  Project Introduction Manufacturer - Blend of organic  Analysis 1: Curtain Wall Timeline - GreenGrid roofing systems and inorganic  Analysis 2: Green Roof Addition components  Structural Breadth Module  Mechanical Breadth Vegetation - 2’X2’X4” 100% Pre -consumer recycled  Analysis 3: Prefabrication polyethylene trays - Perennials, grasses,  Summary of Analyses shrubs, etc  Acknowledgements Weight Modular Green Roof System - 18 to 22 lbs/ft 2 (Wet)

Existing Roof Detail Current Roof Slab PRESENTATION OUTLINE Roof Loads  Project Introduction - Composite deck 3- ¼” LW - The dead - Live = 25 PSF  Analysis 1: Curtain Wall Timeline concrete load is less - Dead = 15 PSF  Analysis 2: Green Roof Addition than the snow - Snow = 24 PSF - 18 gauge galvanized metal  load therefore Structural Breadth decking - Green Roof = 20 PSF the snow load  Mechanical Breadth - Conc. Slab = 24 PSF is used - 3” to 1.5” tapered insulation  Analysis 3: Prefabrication  Summary of Analyses Total = 94 PSF - 5/8” cover board  Acknowledgements - Single ply EPDM membrane

Bay One Bay Two Bay Three Demension 30'X32' 30'X26' 30'X32' PRESENTATION OUTLINE  Project Introduction Beam Size W18X35 W14X22 W30X108 Shear = WL/2  Analysis 1: Curtain Wall Timeline Beam Spacing 10' 7.5' 10'  Analysis 2: Green Roof Addition Moment = WL^2/8  Shear 15.04 kip 9.17 kip 15.04 kip Structural Breadth  Mechanical Breadth Shear Capacity 159 kip 96 kip 488 kip - All beams were considered simply supported  Analysis 3: Prefabrication - Bare beam capacity was used despite a composite Moment 120.32 kip-ft 58.96 kip-ft 120.32 kip-ft  Summary of Analyses beam system  Acknowledgements Moment 249 kip-ft 125 kip-ft 1300 kip-ft Capacity - Girders were also determined to be sufficiently sized