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Hemispherical dome. The hemispherical dome is a surface formed by the rotation around a vertical axis of a semicircle. Like other "rotational domes" formed by the rotation of a curve around a vertical axis, hemispherical domes have circular bases and horizontal sections and are a type of "circular dome" for that reason.
They were customarily hemispherical in shape and partially or totally concealed on the exterior. In order to buttress the horizontal thrusts of a large hemispherical masonry dome, the supporting walls were built up beyond the base to at least the haunches of the dome and the dome was then also sometimes covered with a conical or polygonal roof ...
A geodesic dome is a hemispherical thin-shell structure (lattice-shell) based on a geodesic polyhedron. The rigid triangular elements of the dome distribute stress throughout the structure, making geodesic domes able to withstand very heavy loads for their size.
In geometry, a spherical cap or spherical dome is a portion of a sphere or of a ball cut off by a plane. It is also a spherical segment of one base, i.e., bounded by a single plane. If the plane passes through the center of the sphere (forming a great circle ), so that the height of the cap is equal to the radius of the sphere, the spherical ...
Typical early Christian Byzantine apse with a hemispherical semi-dome in the Basilica of Sant'Apollinare in Classe Typical floor plan of a cathedral, with the apse shaded. In architecture, an apse (pl.: apses; from Latin absis, 'arch, vault'; from Ancient Greek ἀψίς, apsis, 'arch'; sometimes written apsis; pl.: apsides) is a semicircular recess covered with a hemispherical vault or semi ...
A dome for Sant'Alessandro was built in 1626 and demolished in 1627, perhaps due to the use of an inadequate number of iron ties. Although the dome had a timburio, it may also have had a lower and less stable hemispherical form. [84] Autographed drawings from the period indicate it was a ribbed hemispherical dome with a lantern and timburio.
The Florence Cathedral's dome has octagonal supporting walls, like the Dome of Soltaniyeh. The Dome of Soltaniyeh is the third largest brick dome in the world (after Florence Cathedral and Hagia Sophia). Hagia Sophia is older than the Dome of Soltaniyeh, but the Hagia Sophia is a single shell brick dome. [55] 1659 – 1937 44 140 Gol Gumbaz
Characteristics of lava dome eruptions include shallow, long-period and hybrid seismicity, which is attributed to excess fluid pressures in the contributing vent chamber. Other characteristics of lava domes include their hemispherical dome shape, cycles of dome growth over long periods, and sudden onsets of violent explosive activity. [10]