John Hancock center
| John Hancock center | |
|---|---|
 | |
| Facilities information | |
| The location |  Illinois Chicago City north Michigan-cho 875 |
| State | Completion |
| Construction period | From 1965 to 1969 |
| Use | Compound use |
| Freeboard | |
| The most top | 457.2m |
| The roof | 343.5m |
| The top floor | 328.6m |
| Various specifications | |
| Number of floors | The 100th floor |
| Deferred floor space | 260,126 m² |
| The number of the elevators | 50 |
| Affiliates | |
| Design | SOM |
The John Hancock center (English: John Hancock Center) is a skyscraper in United States of America Illinois Chicago City. It was designed by world-famous building design company, structure engineer of skid more オーウィングズ and Meryl, ファズラー Khan (Bangladeshi American Dhaka-born for Fazlur Khan, 1,929 years). It becomes the representative high-rise along with the Willis tower (old Sears Tower) in Chicago.
Table of contents
Summary of the building
The location is downtown of the city, Michigan avenue 875N. The 100-story skyscraper was high second place next to the empire state building of New York of the world by height of 1, Chicago at the time of completion of 1969. I am next to Willis tower, cards international hotel and tower, the AON center as of 2009 and, with the Chicago fourth place, am a high-rise building of the U.S. fifth place. The use of the building is included in the residence in the high place of the world's best number of floors by an office and the compound use with the condominium like 700 commercial (restaurants) others in these condominiums. The name of the building is associated with leader John Hancock of the American War of Independence.
While there is prestigious restaurant "The Signature Room on the 95th Floor" eminent on the 95th floor of the building in Chicago, and the visitor looks at Lake Michigan; can eat. A fine-view floor for public is on the 94th floor. The view from the Hancock center and the fine-view facilities make Willis tower and two excellent things in the contralateral Wall Street of the downtown area. There are the maps which I explained a thing seen in display about Chicago City and each direction in a fine-view floor to, and, as for part of the prospects floor, it is in the outdoors protected with wire netting, and the audience can feel wind of 314m above the ground. There is the indoor pool in the highest floor in the 44th-floor sky lobby in the United States.
Structure, design
The unique appearance that length and breadth and an X-shaped thick frame showed features the John Hancock center. It is an example of the structure expressionism architecture that this does not cover the structure body supporting a building and lets go outside as the same design and can feel the existence of tube structure and the steel frame which support the weight of this skyscraper if I see the appearance.
I make a pipe-formed structure body with the frame which I arranged outside of a building, and the tube structure to hang the whole, and to support protects a building from the shaking of wind and the earthquake and is a technical idea to enable the super high stratification to lightweighting and higher than of the building the 100th floor, and the afterwards finished World Trade Center and AON center adopt this structure, too. I reinforce in particular it with an X-shaped frame other than a lengthwise direction and a lateral direction in this building. This does the structure of the skyscraper more soundly and is invention to avoid a situation to lose the pillar in the building as much as possible, and to be lined with pillars in the office (the economy increased by having increased the areas that I reduced a pillar and could lease to the office).
The unique appearance that the frame which seems to be firm covers the wall surface assumes John Hancock center monument-like existence in the building history. The Norman Foster and others who dealt with Hong Kong and Shanghai Banking, Hong Kong head office Building after the 1980s used many technique of hi-tech, building it of such a structure expressionism, but ファズラー Khan who was Engineer structure played pioneer role.
The interior decoration was renovated in 1995 and travertine and entering design marble was set in the lobby and did it. The oval-formed open space accessible to anyone of the building outside becomes the citizen's oasis with the waterfall of flower and 3.7m (12 feet) of the season. When it is night, I am lighted up white and can look at the building upper part from the whole Chicago, and the color of the light up changes more every holiday.
Other
- A part of the swing stage for the window cleaning that was able to tear it dropped from the 43rd floor, and, on March 9, 2002, three people who crushed a lower car, and were to two died of a strong wind of 100km per an hour (wind velocity approximately 28m/s). The left part shook by a strong wind and hit the building outer wall many times, and damage such as letting I shattered outer wall materials and a windowpane, and the ground drop appeared.
- It was in the home which there was in the John Hancock center that the Chris fur lei of a comedian, the movie star who was a live regular died of the overdoughs of the drug in the night on Saturday on December 18, 1997.
- On December 10, 2006, the John Hancock center was sold to Goldman Sachs for 385 million dollars by real estate agency Shorenstein Properties LLC of San Francisco. This supplier bought a building for 220 million dollars in 1998.
- Race "Hustle improving the Hancock" running up the stairs from annual event, the Michigan avenue to the 94th-floor observation deck is held every year on a day on the last day in February. The race is carried out as charity for the American pulmonary association Chicago metropolis branch office. The past record was nine minutes 39 seconds on the run from a road to the 94th floor.
- It is said that 1, Chicago is beautiful in the night view to see from the observation deck of this building.
Outside link
This article is taken from the Japanese Wikipedia John Hancock center
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