flying buttress(redirected from Arcboutant)
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flying buttress:see buttressbuttress,
mass of masonry built against a wall to strengthen it. It is especially necessary when a vault or an arch places a heavy load or thrust on one part of a wall. In the case of a wall carrying the uniform load of a floor or roof, it is more economical to buttress it at
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A characteristic feature of Gothic construction in which the lateral thrusts of a roof or vault are carried by a segmental masonry arch, usually sloping, to a solid pier or support that is sufficiently massive to receive the thrust.See also: Buttress
flying buttress[¦flī·iŋ ′bə·trəs]
A buttress connected by an arch to the building it supports.
A characteristic feature of Gothic construction, in which the lateral thrusts of a roof or vault are taken up by a straight bar of masonry, usually sloping, carried on an arch, and a solid pier or buttress sufficient to receive the thrust.
a buttress supporting a wall or other structure by an arch or part of an arch that transmits the thrust outwards and downwards