Open Access Articles- Top Results for X-bracing


The John Hancock Tower has visible X-bracing on its exterior

X-bracing is a structural engineering practice where the lateral load on a building is reduced by transferring the load into the exterior columns.

X-bracing was used in the construction of the 1908 Singer Building, then the tallest building in the world.[1]

Some skyscrapers by engineer Fazlur Khan, such as the 1969 John Hancock Center, have a distinctive X-bracing exterior, allowing for both higher performance from tall structures and the ability to open up the inside floorplan (and usable floor space) if the architect desires.[2]


  1. ^ Semsch, Otto Francis (1908). A History of the Singer Building Construction: Its Progress from Foundation to Flag Pole. Trow Press. 
  2. ^ Ali Mir (2001), Art of the Skyscraper: the Genius of Fazlur Khan, Rizzoli International Publications, ISBN 0-8478-2370-9

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