Semi-dome

Semi-dome
Typical Early Christian/Byzantine apse with a hemispherical semi-dome decorated in mosaic (Basilica di Sant'Apollinare in Classe in Ravenna).

A semi-dome, also called a "half-dome", is the term in architecture for half a dome ("cut" vertically), used to cover a semi-circular area.[1] Similar structures occur in nature.

Contents

Architecture

Semi-domes are a common feature of apses in Ancient Roman and traditional church architecture, and mosques and iwans in Islamic architecture.

A semi-dome, or the whole apse, may also be called a conch after the scallop shell often carved as decoration of the semi-dome (all shells were conches in Ancient Greek), though this is usually used for subsidiary semi-domes, rather than the one over the main apse.[2] Small semi-domes have been often decorated in a shell shape from ancient times,[3] as in Piero della Francesca's Throned Madonna with saints and Federigo da Montefeltro,[4] and the example in the gallery below. Islamic examples may use muqarnas decorative corbelling, while in Late Antique, Byzantine and medieval church architecture the semi-dome is the classic location for a focal mosaic, or later fresco.[5]

Looking up at the radiating semi-domes of Hagia Sophia.

Found in many Ancient Greek exedras, the semi-dome became a common feature of the apse at the end of Ancient Roman secular basilicas, which was adopted in Early Christian architecture as the commonest shape for churches, becoming the focal point for decoration. In buildings like Hagia Sophia in Byzantine architecture, apsidal openings or exhedras from the central nave appear in several directions, not just to the litugical east.[6] The tetraconch, triconch and cross-in-square are other typically Eastern Christian church plans that produce several semi-domes.

When the Byzantine styles were adapted in Ottoman architecture, which was even less concerned with maintaining a central axis, a multiplicity of domes and semi-domes becomes the dominating feature of both the internal space and the external appearance of the building. The buildings of Mimar Sinan and his pupil Sedefkar Mehmed Agha are the masterpieces of this style. Mihrabs are another common location for semi-domes.

In Western Europe the external appearance of a semi-dome is less often exploited than in Byzantine and Ottoman architecture, and is often disguised as a sloping rather than curved semi-circular roof.[7]

The Cincinnati Museum Center at Union Terminal in Cincinnati, OH features the largest semi-dome in the western hemisphere, measuring 180 feet wide and 106 feet high.[8]

Crabs

Males of the Uca lactea species of fiddler crab build mud semidomes to attract females in the mating season.[9]

Gallery

Notes

  1. ^ OED, "Semi-dome"
  2. ^ OED, Conch, 5: "The domed roof of a semi-circular apse; also, the apse as a whole".
  3. ^ Hachlili (1998), p. 373, on ancient Jewish examples.
  4. ^ Commons image
  5. ^ Talbot Rice, 118 and 123
  6. ^ Talbot Rice, 93-98
  7. ^ See illustration at Glossary of Medieval Art and Architecture, s.v "semi-dome" (retrieved on 18 April 2009).
  8. ^ Cincinnati Union Terminal Architectural Information Sheet. Cincinnati Museum Center. Retrieved on February 8, 2010.
  9. ^ Kim et al. (2004)

References


Wikimedia Foundation. 2010.

Игры ⚽ Нужна курсовая?

Look at other dictionaries:

  • semi-dome — n. 1 a half dome formed by vertical section. 2 a part of a structure more or less resembling a dome …   Useful english dictionary

  • semi-dome — noun Architecture a half dome formed by vertical section …   English new terms dictionary

  • semi — semi·abstract; semi·abstraction; semi·aerial; semi·amphibious; semi·annual; semi·annually; semi·anthracite; semi·ape; semi·aquatic; semi·arboreal; semi·arch; semi·arid; semi·auto; semi·autonomous; semi·basement; semi·beam; semi·bejan;… …   English syllables

  • Dome — For other uses, see Dome (disambiguation). Domal redirects here. For domal consonants , see Retroflex consonant. Dome of St. Peter s Basilica in Rome crowned by a cupola. Designed primarily by Michelangelo, the dome was not completed until 1590 A …   Wikipedia

  • dome — as·tro·dome; brachy·dome; cli·no·dome; dome; hemi·dome; in·ter·dome; mac·ro·dome; opis·tho·dome; or·tho·dome; plas·ti·dome; ra·dome; rhyt·i·dome; semi·dome; hal·i·dome; rhab·dome; …   English syllables

  • Dome-mae Chiyozaki Station — (ドーム前千代崎駅, Dōmu mae Chiyozaki eki?, N12) is a train station on the Osaka Municipal Subway Nagahori Tsurumi ryokuchi Line in Nishi ku, Osaka, Japan. There is Dome mae Station (ドーム前駅 …   Wikipedia

  • Dome F105 — Category Formula One Constructor Dome Designer(s) Akiyoshi Oku Technical specifications[1] …   Wikipedia

  • Dome — • An architectural term often used synonymously with cupola Catholic Encyclopedia. Kevin Knight. 2006. Dome     Dome     † …   Catholic encyclopedia

  • Dôme de Milan — Cathédrale de Milan Présentation Nom local Duomo di Milano Culte Catholique romain Type Cathédrale …   Wikipédia en Français

  • Dome of Yusuf — The Dome of Yusuf (Arabic: ‎ Qubbat Yusuf) is a free standing domed structure on the Temple Mount, located at the southern end of the Dome of the Rock terrace. It was built by Saladin in the late 12th century, and has been renovated several times …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”