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The dome chamber in the Palace of Ardashir, the Sassanid king, in Firuzabad, Iran, is the earliest surviving example of the use of the squinch. [7] [8] After the rise of Islam, it remained a feature of Islamic architecture, especially in Iran, and was often covered by corbelled stalactite-like structures known as muqarnas.
Byzantine architecture is the architecture of the Byzantine Empire, or Eastern Roman Empire, usually dated from 330 AD, when Constantine the Great established a new Roman capital in Byzantium, which became Constantinople, until the fall of the Byzantine Empire in 1453.
Nero introduced the dome into Roman palace architecture in the 1st century and such rooms served as state banqueting halls, audience rooms, or throne rooms. The Pantheon's dome, the largest and most famous example, was built of concrete in the 2nd century and may have served as an audience hall for Hadrian.
The curved squinch forms used by the Fatimids were replaced by the Ayyubids with more angular forms. An interior zone of transition with three tiers of squinches was first used by the Ayyubids, resulting in a higher dome. The earliest example was in wood in the dome of Mausoleum of Imam al-Shafi'i (1211).
In architecture, a pendentive is a constructional device permitting the placing of a circular dome over a square room or of an elliptical dome over a rectangular room. [1] The pendentives, which are triangular segments of a sphere, taper to points at the bottom and spread at the top to establish the continuous circular or elliptical base needed for a dome. [2]
In the case of the simple dome, the pendentives are part of the same sphere as the dome itself; however, such domes are rare. [8] In the case of the more common compound dome, the pendentives are part of the surface of a larger sphere below that of the dome itself and form a circular base for either the dome or a drum section. [7]
An oculus (from Latin oculus 'eye'; pl.: oculi) is a circular opening in the center of a dome or in a wall. Originating in classical architecture, it is a feature of Byzantine and Neoclassical architecture. A horizontal oculus in the center of a dome is also called opaion (from Ancient Greek ὀπαῖον '(smoke) hole'; pl.: opaia).
The characteristic multi-domed profile of the Byzantine Hagia Sophia, the first pendentive dome in history, has shaped Orthodox and Islamic architecture alike. [1] This is a list of Byzantine inventions. The Byzantine or Eastern Roman Empire represented the continuation of the Roman Empire after a part of it collapsed.