The round arch and barrel valult are similar in shape. The barrel vault is an extension of the round arches which form the vault or roof of a structure.
It's a vault made of two intersecting barrel vaults (a barrel vault is basically a series of ordinary semi-circular arches, making for a long semi-circular ceiling) that have the same diameter as one another. See the wikipedia article on groin vaults for more information.
A barrel vault is a structure that spans an open area. It is a ceiling that is like half of a cylinder. Take a soup can and cut it in half from the top to bottom, and then look inside. The shape is that of a barrel vault.
A vault formed by the intersection at right angles of two barrel vaults.cross vault
That would be a barrel vault.
That would be a barrel vault.
A barrel vault can span the length of a tunnel.
Hometime - 1986 Barrel Vault Basement was released on: USA: 14 November 2009
What advantages did the Romans find in using a cross vault instead of a barrel vault?
A barrel vault is a simple roof with a curved, semi-circular cross section, used to span large distances, such as found in railway stations and churches.
Cross vault
barrel vault