groin vault


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Related to groin vault: tunnel vault

groin vault

n.
A vault formed by the intersection of two or more barrel vaults. Also called cross vault.
References in periodicals archive ?
Of note are the groin vault ceilings, delicate wainscoting and elaborate fireplace mantels.
A 321-metre-long curving shed over the high-level east west platforms intersects with a shorter arched shed covering the station from north to south, creating--as at Brunel's Paddington a century and a half earlier--a metallic groin vault. So the cathedral analogy becomes irresistible--as is the thought that the railway station, and not the airport, can be the representative building of the 21st century as well as of the 19th.
The starfish vault, in which the four arrises of the groin vault are flattened and embellished to form a four-pointed star, was to become something of a Soane speciality after its use in the Breakfast Room.