Diagrid

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Diagrid (a portmanteau of diagonal grid) is a design for constructing large buildings with steel that creates triangular structures with diagonal support beams. It requires less structural steel than a conventional steel frame. Hearst Tower reportedly uses 21 percent less steel than a standard design. The Diagrid also obviates the need for large corner columns and provides a better distribution of load in the case of a compromised building. Another building designed by Sir Norman Foster, 30 St Mary Axe, known as "the Gherkin", also makes use of this structural system.

[edit] Buildings utilizing diagrid

• Hearst Tower (New York City)
• 30 St Mary Axe - Swiss Re building ("the Gherkin")
• The first design for the Freedom Tower at the World Trade Center site in New York, New York included the use of a diagrid perimeter.
• CCTV Headquarters in Beijing, China

[edit] External links

• Diagrid at the Freedom Tower