Rib vault
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A rib vault or ribbed vault is an architectural feature for covering a wide space, such as a church nave, composed of a framework of crossed or diagonal arched ribs. Variations were used in Roman arch
Romanesque rib vaulting, Peterborough Cathedral (begun 1118) south aisle
Gothic rib vaulting, Tours Cathedral, nave
Rib vaulted ceiling of Noyon Cathedral, one of the first Gothic cathedrals built in France
Rib vault from Villa Sette Bassi, Rome (c.150)
Vault (architecture)
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In architecture, a vault is a self-supporting arched form, commonly of stone or brick, serving to cover a space with a ceiling or roof. As in building an arch, a temporary support is needed while ring
Gothic rib vault ceiling of the Saint-Séverin church in Paris
In a pitched-brick vault the bricks lean (are pitched) against an existing wall.
St Paul's Cathedral Choir looking east, London
Pointed barrel vault showing direction of lateral forces