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2016 International Tall Building Conference
Reinventing Woolworth:Adaptive Reuse of an Historic Skyscraper
Gary Steficek, PE
ASCE Structures Congress 20152016 International Tall Building Conference
Original Design:Cathedral of Commerce
ASCE Structures Congress 20152016 International Tall Building Conference
ASCE Structures Congress 20152016 International Tall Building Conference
1990s
ASCE Structures Congress 20152016 International Tall Building Conference
1990s
ASCE Structures Congress 20152016 International Tall Building Conference
Conversion:Residential Scope
Convert upper 30 floors to residential without disrupting ongoing commercial (office) use of lower 28 floors
ASCE Structures Congress 20152016 International Tall Building Conference
Overview:The Woolworth Building
241 Meters tall
57 Floors
6 Hectares Floor Area
5,000 Windows
91 Million Kg Total Weight
21,773 metric tons Steel
6,804 metric tons Terra Cotta
17 million Bricks
$13.5 Million Construction Cost
($325 Million in 2015 Dollars)
ASCE Structures Congress 20152016 International Tall Building Conference
Original Design: Frame
Portal Arch Bracing
Full-Story Diagonal Bracing
Knee Bracing
ASCE Structures Congress 20152016 International Tall Building Conference
Original Design: Frame
ASCE Structures Congress 20152016 International Tall Building Conference
1910: Foundations
69 Pneumatic Caissons
36 Meters Deep
Grillage and Triple Girders
ASCE Structures Congress 20152016 International Tall Building Conference
1913: Erection
ASCE Structures Congress 20152016 International Tall Building Conference
1913: Erection
ASCE Structures Congress 20152016 International Tall Building Conference
Frame Design: Pinnacle
ASCE Structures Congress 20152016 International Tall Building Conference
1913: Erection
ASCE Structures Congress 20152016 International Tall Building Conference
Terracotta Arch
ASCE Structures Congress 20152016 International Tall Building Conference
Landmark Preservation:Lobby
ASCE Structures Congress 20152016 International Tall Building Conference
Vertical Transportation
Vertical transportation to new lobby and sub-cellar amenity space
ASCE Structures Congress 20152016 International Tall Building Conference
Vertical Transportation
Typical Tower Floor
Existing Conditions
ASCE Structures Congress 20152016 International Tall Building Conference
Vertical TransportationGround Floor
Existing conditions
ASCE Structures Congress 20152016 International Tall Building Conference
Vertical TransportationGround Floor
Demolition
ASCE Structures Congress 20152016 International Tall Building Conference
Vertical TransportationGround Floor
New Design
ASCE Structures Congress 20152016 International Tall Building Conference
New Residential Entry
ASCE Structures Congress 20152016 International Tall Building Conference
Vertical Transportation:Shafts
ASCE Structures Congress 20152016 International Tall Building Conference
Vertical Transportation:Elevator Pit Construction
Excavation to Water Table
ASCE Structures Congress 20152016 International Tall Building Conference
ASCE Structures Congress 20152016 International Tall Building Conference
Vertical Transportation:Elevator Pit Construction
Inner Rebar Placement
ASCE Structures Congress 20152016 International Tall Building Conference
Vertical Transportation:Elevator Pit Construction
Pit Complete
ASCE Structures Congress 20152016 International Tall Building Conference
ASCE Structures Congress 20152016 International Tall Building Conference
ASCE Structures Congress 20152016 International Tall Building Conference
29th Floor Penthouse
ASCE Structures Congress 20152016 International Tall Building Conference
29th Floor Penthouse
ASCE Structures Congress 20152016 International Tall Building Conference
ASCE Structures Congress 20152016 International Tall Building Conference
ASCE Structures Congress 20152016 International Tall Building Conference
Pinnacle
ASCE Structures Congress 20152016 International Tall Building Conference
Pinnacle:“The Great Room”
ASCE Structures Congress 20152016 International Tall Building Conference
Landmark Preservation:Façade Systems
ASCE Structures Congress 20152016 International Tall Building Conference
Pinnacle
ASCE Structures Congress 20152016 International Tall Building Conference
Pinnacle
ASCE Structures Congress 20152016 International Tall Building Conference
Pinnacle:Frame Design
ASCE Structures Congress 20152016 International Tall Building Conference
Pinnacle:Wind Load Analysis
ASCE Structures Congress 20152016 International Tall Building Conference
Pinnacle:Floor Removal andFrame Reinforcement
ASCE Structures Congress 20152016 International Tall Building Conference
Pinnacle:Scaffold
ASCE Structures Congress 20152016 International Tall Building Conference
ASCE Structures Congress 20152016 International Tall Building Conference
ASCE Structures Congress 20152016 International Tall Building Conference
2016 International Tall Building Conference
Thank You
Gary Steficek, PE, PartnerGilsanz Murray Steficek
129 West 27th StreetNew York, NY 10001United States of America
Project Team:
Client: Alchemy Properties
Design Architect: The Office of Thierry W. Despont, Ltd.
Executive Architect: SLCE Architects LLP
Structural Engineer: Gilsanz Murray Steficek LLP
Mechanical Engineer: AKF Group LLC
Façade Design: FacadeMD, Inc.
Elevator Consultant: Jenkins & Huntington, Inc.
