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The evolution of the pointed arch in Islamic architecture was associated with increases between the centers of the circles forming the two sides of the arch (making the arch less "blunt" and more "sharp"), from 1 ⁄ 10 of the span in Qusayr 'Amra (712-715 AD), to 1 ⁄ 6 in Hammam as-Sarah (725-730), to 1 ⁄ 5 in Qasr Al-Mshatta (744), and ...
With the bulk of Roman masonry bridges resting on semi-circular arches, or, to a lesser extent, on segmental arches, [8] the Karamagara Bridge represents an equally rare and early instance of the use of pointed arches not only in late antique bridge building, but also in the history of architecture overall. [9]
This was to be the longest arch bridge for a thousand years both in terms of overall and individual span length, while the longest extant Roman bridge is the 790 m-long (2,590 ft) long Puente Romano at Mérida. The late Roman Karamagara Bridge in Cappadocia may represent the earliest surviving bridge featuring a pointed arch. [10]
Byzantine architecture is the architecture of the Byzantine Empire, or Eastern Roman Empire, usually dated from 330 AD, ... the pointed arch of Karamagara Bridge, ...
The largest pointed arch bridge by span was the Karamagara Bridge in Cappadocia with a clear span of 17 m. Constructed in the 5th or 6th century AD across a tributary of the Euphrates, the now submerged structure is one of the earliest known examples of pointed architecture in late antiquity, and may even be the oldest surviving pointed arch ...
A similar arch that uses a mixture of curved and straight segments [71] or exhibits sharp turns between segments [72] is a mixed-line arch (or mixtilinear arch). In Moorish architecture the mixed-line arch evolved into an ornate lambrequin arch, [73] also known as muqarnas arch.
Construction of a four-centred arch. A four-centred arch (Commonwealth spelling) or four-centered arch (American spelling) is a low, wide type of arch with a pointed apex.Its structure is achieved by drafting two arcs which rise steeply from each springing point on a small radius, and then turning into two arches with a wide radius and much lower springing point.
Pointed arch Saint-Martial Bridge (Limoges) Also known as a broken arch, the pointed arch is formed by two circular arcs meeting at the keystone. This shape is ancient but was widely used in the Middle Ages because it reduces horizontal forces, making it easier to construct multi-span bridges. [60] Segmental arch Pont des Invalides