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Jack arch

   Also found in: Encyclopedia, Wikipedia 0.01 sec.
an arch of the thickness of one brick.

See also: Jack



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The marvellous invention of the jack arch (a combination of brick vaulting stiffened by wrought iron or steel beams and often supported on cast iron columns) allowed new perceptions of mass carried apparently effortlessly -- potentially as powerful a spatial device as the dome floated over Hagia Sophia by Isodorus of Miletus and Anthemios of Tralles.
Building with metal: metals have been used in buildings for more than ... by Davey, Peter / The Architectural Review
 
 
 
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