肋架拱顶

[ noun ]
vault that resembles a groined vault but has ribbed arches
<noun.artifact>

Vault \Vault\ (v[add]lt; see Note, below), n. [OE. voute, OF.
voute, volte, F. vo[^u]te, LL. volta, for voluta, volutio,
fr. L. volvere, volutum, to roll, to turn about. See
{Voluble}, and cf. {Vault} a leap, {Volt} a turn, {Volute}.]
1. (Arch.) An arched structure of masonry, forming a ceiling
or canopy.

The long-drawn aisle and fretted vault. --Gray.

2. An arched apartment; especially, a subterranean room, use
for storing articles, for a prison, for interment, or the
like; a cell; a cellar. ``Charnel vaults.'' --Milton.

The silent vaults of death. --Sandys.

To banish rats that haunt our vault. --Swift.

3. The canopy of heaven; the sky.

That heaven's vault should crack. --Shak.

4. [F. volte, It. volta, originally, a turn, and the same
word as volta an arch. See the Etymology above.] A leap or
bound. Specifically:
(a) (Man.) The bound or leap of a horse; a curvet.
(b) A leap by aid of the hands, or of a pole, springboard,
or the like.

Note: The l in this word was formerly often suppressed in
pronunciation.

{Barrel vault}, {Cradle vault}, {Cylindrical vault}, or
{Wagon vault} (Arch.), a kind of vault having two parallel
abutments, and the same section or profile at all points.
It may be rampant, as over a staircase (see {Rampant
vault}, under {Rampant}), or curved in plan, as around the
apse of a church.

{Coved vault}. (Arch.) See under 1st {Cove}, v. t.

{Groined vault} (Arch.), a vault having groins, that is, one
in which different cylindrical surfaces intersect one
another, as distinguished from a barrel, or wagon, vault.


{Rampant vault}. (Arch.) See under {Rampant}.

{Ribbed vault} (Arch.), a vault differing from others in
having solid ribs which bear the weight of the vaulted
surface. True Gothic vaults are of this character.

{Vault light}, a partly glazed plate inserted in a pavement
or ceiling to admit light to a vault below.