Tunnel Vault
From LoveToKnow 1911
TUNNEL VAULT, the term in architecture given to the semicircular or elliptical vault over underground passages, in contradistinction to the wagon or barrel vault of edifices above ground.
Tunnel vault - see Barrel vault
Vaulting shaft - The vertical member leading to the springer of a vault.
Velarium - An awing hung over a courtyard or, in ancient Rome, over an amphitheatre ...
tunnel vault: a continuous stone roof, either semicircular or pointed in section.
ribbed vault
tunnel vault
vault
wagon vault
He looked out through the side door in time to see a pair of long legs vaulting over the picket fence.
A barrel or tunnel vault, semicylindrical in cross section, is in effect a deep arch or an uninterrupted series of arches, one behind the other, over an oblong space.
barrel vault or tunnel vault
The simplest form of a vault, consisting of a continuous surface of semicircular or pointed sections. It resembles a barrel or tunnel which has been cut in half lengthwise.
Nave with barrel or tunnel vault. Nave elevation formed of nave arcade with gallery above.
Barrel Vault with transverse arches connected to attached half columns that extend down to compound piers.
Being semicircular in section, barrel or tunnel vaults are inherently limited in span, and they exert lateral thrust. Two Roman inventions of enormous importance overcame this.
Barrel vault - the simplest vault, also called a wagon or tunnel vault. A continuous vault usually semi-circular in section.
Boss - a knob or projection covering the intersection of ribs, usually decorated or carved, very often foliated.
barrel vault - or tunnel vault; a series of pressed-together arches, they were heavy and had enormous thrust or pressure downward and outward, usually had heavy walls because of this.
of a gable, forming triangles by tapering into horizontal courses.Tunnel vaultThe simplest kind of vault, in the form of a continuous semicircular or pointed arch; also called a barrel vault.Tuscan ...
Tunnel Vault: See Barrel Vault. Turning Bridge: A drawbridge that pivots in the middle. Turret: Small tower, round or polygonal; usually a lookout; A small tower rising above and resting on one of the main towers, usually used as a look out point.
 See also: Tunnel, Vault, Barrel, Barrel vault, Architecture
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