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The basic barrel form, which appeared first in ancient Egypt and the Middle East, is in effect a continuous series of arches deep enough to cover a three-dimensional space. It exerts the same kind of thrust as the circular arch and must be buttressed along its entire length by heavy walls with limited openings.
Roman architects discovered that two barrel vaults that intersected at right angles formed a groin vault, which, when repeated in series, could span rectangular areas of unlimited length. Because the groin vault’s thrusts are concentrated at all four corners, its supporting walls need not be massive and require buttressing only where they support the vault. The groin vault, however, requires great precision in stone cutting, an art that declined in the West with the fall of Rome. Vaulting was continued and improved in the Byzantine Empire and in the Islamic world.
Medieval European builders developed a modification, the rib vault, a skeleton of arches or ribs on which the masonry could be laid. The medieval mason used pointed arches; unlike round arches, these could be raised as high over a short span as over a long one. To cover rectangular areas, the mason used two intersecting vaults of different widths but of the same height.
Nineteenth-century builders, using new materials, could construct large iron skeletons as frameworks for vaults of lightweight materials—for example, the glass-vaulted Crystal Palace of the 1851 Great Exhibition in London. Because the new materials eliminated weight and thrust problems, the simple barrel vault returned to favour for such structures as railroad terminals and exhibition halls. In many modern frame systems the vault has lost its functional significance and become a thin skin laid over a series of arches. The reinforced-concrete shell vault, a bent or molded slab, is an important innovation. The steel-reinforced shell exerts no lateral thrust and may be supported as if it were a beam.
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architecture: VaultThe evolution of the vault begins with the discovery of the arch, because the basic “barrel” form, which appeared first in ancient Egypt and the Near East, is simply a deep, or three-dimensional, arch. Since the barrel vault exerts thrust as the arch does,…
South Asian arts: Indus Valley civilization (c. 2500–1800 bc)Corbel vaulting (arches supported by brackets projecting from the wall) was known, and, to a limited extent, timber was used together with brick; whatever architectural ornamentation existed must have been of brick or plaster.…
Western architecture: Late GothicGerman masons specialized in vault designs; and, in order to get the largest possible expanse of ceiling space, they built mainly hall churches (a type that had been popular throughout the 14th century). Important hall churches exist at Landshut (St. Martin’s and the Spitalkirche,
c.1400) and Munich (Church…