John Hancock Center Download PDF


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Height: Occupied
321.3 m / 1,054 ft
 
Height: Architectural
343.7 m / 1,128 ft
 
John Hancock Center Outline
  Height: To Tip
456.9 m / 1,499 ft
Height: Observatory
313.8 m / 1,030 ft
Floors Above Ground
100
# of Elevators
50
Top Elevator Speed
9.2 m/s
Tower GFA
260,126 m² / 2,799,973 ft²
# of Parking Spaces
750

Facts

Official Name John Hancock Center
Other Names Big John
Structure Type Building
Status Completed
Country United States
City Chicago
Street Address & Map 875 North Michigan Avenue
Building Function residential / office
Structural Material steel
Construction Start 1965
Completion 1969
Official Website 360 Chicago John Hancock Center
Rankings Click arrows to view the next taller/shorter buildings
Global Ranking #36 Tallest in the World
Regional Ranking #7 Tallest in North America
National Ranking #7 Tallest in United States
City Ranking #4 Tallest in Chicago

Companies Involved

Owner Hearn Company
Developer Jerry Wolman Associates
Architect
Design Skidmore, Owings & Merrill LLP
Structural Engineer
Design Skidmore, Owings & Merrill LLP
Main Contractor Tishman Construction
Other Consultant
• Wind Alan G. Davenport Wind Engineering Group
Material Supplier
• Cladding Cupples
• Elevator Otis Elevator Company
• Sealants Dow Corning Corporation

About John Hancock Center

Over forty years after completion, the John Hancock Center has established itself as one of the world’s most recognized skyscrapers and an iconic example of late twentieth century Chicago design, construction, and engineering. The building’s structural, programmatic, and architectural innovations combine to create a design that is heralded for its elegant simplicity.

As one of the world’s first mixed-use tall building projects, the John Hancock Center design was influential in its internal organization. The complex programmatic design placed commercial space on a sub-level concourse and the first five levels. This was followed by levels of parking, office, residential, and finally dining, observation, and broadcasting facilities.

The architecture of the tower is informed by its expressive structural system and gently sloping façades. This innovative form was designed to efficiently accommodate the variety of uses contained in the building. The gentle inward slope creates optimally-sized floor plans for both the lower parking and office levels and the higher residential floors. Additionally, the tapered form significantly reduces wind loads, allowing for a reduction in the size of structural members. For Chicago’s busy streetscape, the building’s shape increases the visual verticality of the building; adding perceived height to an already impressively tall tower.

The architectural form of the John Hancock Center represents a radical departure from established aesthetics of the time. Initially, critics labeled the building as too industrial, but over time it has come to symbolize the gutsy tradition of structural expression in Chicago. It is often characterized as super-rational, logical, and a representation of the machine age of architecture. It exhibits its true structure much in the tradition of bridge construction. These qualities are at the heart of why the building has endured in the minds of so many.

CTBUH Initiatives

CTBUH Belgium Study Trip to Chicago
23-28 May 2015 – Event Invite

John Hancock Center Tour
20 Oct 2009 – Tour Report

Global News

John Hancock Center Owners Want to Rock Chicago’s Streets
18 Jun 2014 – One of the owners of the John Hancock Center has…

Video: Chicago’s John Hancock Center Tilts for Thrills
12 May 2014 – Chicago’s John Hancock Center has thrown down the…

Hancock Center Considers Tilting Glass Deck Extension
9 Dec 2013 – Seeking to boost its visitor levels, Chicago’s…

More News

News Related to John Hancock Center

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John Hancock Center Owners Want to Rock Chicago’s Streets
18 Jun 2014
One of the owners of the John Hancock Center has proposed a glass-enclosed, diamond-shaped structure in front of the skyscraper, in which musicians would entertain crowds…
News Image
Video: Chicago’s John Hancock Center Tilts for Thrills
12 May 2014
Chicago’s John Hancock Center has thrown down the gauntlet when it comes to skyscraper thrills with its newest attraction, Tilt, a window that actually tilts out over the…
News Image
Hancock Center Considers Tilting Glass Deck Extension
9 Dec 2013
Seeking to boost its visitor levels, Chicago’s John Hancock Center Observatory is considering building The Tilt, a glass-enclosed extension of its 94th-floor viewing area…
News Image
John Hancock Center Sale Indicates Depreciated Value
27 Jun 2013
San Antonio-based real estate firm The Lynd Co. and its partners closed a deal for 900,000 square feet (83,000 square meters) of space at the 100-story John Hancock…

Videos

Interview: Fazlur Khan Winner: Clyde Baker
6 Nov 2013 – Clyde N. Baker, Jr., AECOM

Interview: Management of Tall Buildings
19 Sep 2012 – Tony Long, CBRE

One Nation Under Construction
Nov 2010 – Chicago Architecture Foundation

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Videos Related to John Hancock Center

Videos Related to John Hancock Center

Interview: Fazlur Khan Winner: Clyde Baker
6 Nov 2013 – 2013 Awards Ceremony/Symposium Interviews; Clyde N. Baker, Jr., AECOM
Clyde N. Baker, Jr., Fazlur R. Khan Lifetime Achievement Medal Winner, discusses his lifetime work as a geotechnical engineer including working on 7 of the 16 world's…
Interview: Management of Tall Buildings
19 Sep 2012 – 2012 Shanghai Congress Interviews; Tony Long, CBRE
Tony Long of CBRE is interviewed by Jeff Herzer during the 2012 CTBUH Shanghai Congress at the Jin Mao, Shanghai. Tony talks about the management of tall buildings and…
One Nation Under Construction
Nov 2010 – CTBUH in the Media; Chicago Architecture Foundation; Antony Wood, CTBUH
CTBUH's Executive Director Antony Wood and others discuss Chicago's John Hancock Center, measuring tall, and other tall subjects in the Chicago Architecture Foundation's…
Material-Saving Design Strategies for Tall Building Structures
2 Mar 2008 – Presentation at CTBUH 2008 8th World Congress, Dubai; Kyoung Sun Moon, University of Illinois at Urbana-Champaign
Kyoung Sun Moon from the University of Illinois at Urbana-Champaign discussed stiffness-based design methodologies for tall building structures at the CTBUH 8th World…

Browse hundreds of other videos from Council events including conferences and interviews with prominent tall building professionals in the Video Library

Research Papers

Reflections on the Hancock Concept
Jan 2000 – CTBUH Journal, Spring 2000