fan vault


Also found in: Dictionary, Thesaurus, Wikipedia.

fan vault

A concave conical vault, whose ribs, of unequal length and curvature, radiate from the springing like the ribs of a fan.
See also: Vault

fan vault

fan vault
A concave conical vault whose ribs, of equal length and curvature, radiate from the springing like the ribs of a fan.
References in periodicals archive ?
Although the Gothic vault, and to a large extent the fan vault, uses a stone vocabulary, the use of timber like that of the stalls at Gloucester reflects a more intimate scale and delicacy of construction.
Trinity Chapel is regarded as the first structural fan vault to be made of jointed masonry following the conoid form.
Because the cloister construction has to span between other existing structures and external buttresses around the cloister, the conoid pocket - that is the space behind the masonry shell - is left open to the void between the fan vault masonry and the lean-to roof above.
Unlike the Gothic vault, where the expression of forces is described by ribs and spandrels, the blocks of the fan vault conoid are free to be carved to the reticulated design of the enclosure.