A DOME IS A CONVEX ROOF. Domes are categorized according to the shapes of both the base and the section through the center of the dome. The base may be circular, square, or polygonal (many-sided), depending on the plan of the drum (the walls on which the dome rests). The section of a dome may be the same shape as any arch. Various types of dome are illustrated here: a hemispherical dome, which has a circular base and a semicircular section; a saucer dome, which has a circular base and a segmental (less than a semicircle) section; a polyhedral dome, which is a dome on a polygonal base whose sides meet at the top of the dome; and an onion dome, which has a circular or polygonal base and an ogee-shaped section. Many domes have a lantern (a turret with windows) to provide light inside.
Domes
in
ARCHITECTURE
published on 8:41 AM
A DOME IS A CONVEX ROOF. Domes are categorized according to the shapes of both the base and the section through the center of the dome. The base may be circular, square, or polygonal (many-sided), depending on the plan of the drum (the walls on which the dome rests). The section of a dome may be the same shape as any arch. Various types of dome are illustrated here: a hemispherical dome, which has a circular base and a semicircular section; a saucer dome, which has a circular base and a segmental (less than a semicircle) section; a polyhedral dome, which is a dome on a polygonal base whose sides meet at the top of the dome; and an onion dome, which has a circular or polygonal base and an ogee-shaped section. Many domes have a lantern (a turret with windows) to provide light inside.
