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In July 1978, a possible structural flaw was discovered in Citicorp Center, a skyscraper that had recently been completed in New York City. Workers surreptitiously made repairs over the next few months. The building, now known as Citigroup Center, occupied an entire block and was to be the headquarters of Citibank.
The building was designed by architect Hugh Stubbins, associate architect Emery Roth & Sons, and structural engineer William LeMessurier. The Citigroup Center takes up much of a city block bounded clockwise from the west by Lexington Avenue, 54th Street, Third Avenue, and 53rd Street. Land acquisition took place from 1968 to 1973; St. Peter's ...
Later, another young student, Lee deCarolis, prompted LeMessurier to redo his analysis. He discovered that the contractor had replaced the required welded joints with lower-cost, and potentially weaker bolted joints. This weakness could contribute to the building collapsing in "quartering" winds.
In exchange, Citicorp funded a $8.5 million improvement to the nearby Court Square–23rd Street station and created a 16,000 square feet (1,500 m 2) plaza for public use. It also built a 750-car parking garage nearby. [14] Citicorp initially intended to lease part of the building, but eventually decided to occupy the entire space itself.
In most building designs, the weight of the structure is much larger than the weight of the material that it will support beyond its own weight. In technical terms, the dead load, the load of the structure, is larger than the live load, the weight of things in the structure (people, furniture, vehicles, etc.). As such, the amount of structural ...
Residential building: 34 dead, 40 injured 1971: 2000 Commonwealth Avenue collapse: Boston, Massachusetts, US: Condominium building under construction: 4 dead, 30 injured 1971: South Bridge Koblenz, Rhineland-Palatinate, West Germany: Bridge under construction: 13 dead, 13 injured 1971: 1971 Certej dam failure: Certeju de Sus, Hunedoara County ...
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Google Maps: 601 Lexington, NYC, street address-- This is the CitiCorp building. -- as described by its street address 601 Lexington. 70.24.251.208 ( talk ) 13:16, 4 June 2012 (UTC) [ reply ] Comment : The Sears Tower seems a significantly different case, this is not quite so prominent a building.