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Recessed Orders
A compound arch is an arch built using multiple independent sub-arches stacked vertically, with their arcs of voussoirs placed one on the top of the other. The goal of using a compound arch is usually to increase the overall strength and reliability (if only one order is fractured, the structure still stands). Each of these sub-arches, or "rings", of which the whole compound arch is composed, is called an arch order. In some compound orders their faces are in the same plane. But as a rule the orders are successively recessed, i.e. the innermost sub-arch, or order, is narrow, the next above it broader, the next is broader still, and so on. History This system of concentric arches was employed by the Romans early in the 6th century BC, in the Cloaca Maxima at Rome; three orders were used where the Cloaca enters the Tiber. In the Anglo-Saxon architecture the use dates at least to the late 8th century ( All Saints' Church, Brixworth with two concentric orders made of Roman bricks). T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arles Amphitheatre
The Arles Amphitheatre (; ) is a Roman amphitheatre in Arles, southern France. Two-tiered, it is probably the most prominent tourist attraction in the city which thrived in ancient Rome. The towers jutting out from the top are medieval add-ons. Built in 90 AD, the amphitheatre held over 20,000 spectators of chariot races and bloody hand-to-hand battles. Nowadays, it draws smaller crowds for bullfighting during the Feria d'Arles, as well as plays and concerts in summer. In 1981, Arles Amphitheatre was listed as a UNESCO World Heritage Site, together with other Roman and medieval buildings of the city, as part of the Arles, Roman and Romanesque Monuments group. Building The building measures 136 m (446 ft) in length and 109 m (358 ft) wide, and features 120 arches. It has an oval arena surrounded by terraces, arcades on two levels (60 in all), bleachers, a system of galleries, drainage system in many corridors of access and staircases for a quick exit from ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Compound Pier
Compound pier or cluster pier is the architectural term given to a clustered column or pier which consists of a centre mass or newel, to which engaged or semi-detached shafts have been attached, in order to perform (or to suggest the performance of) certain definite structural objects, such as to carry arches of additional orders, or to support the transverse or diagonal ribs of a vault, or the tie-beam of an important roof. In these cases, though performing different functions, the drums of the pier are often cut out of one stone. There are, however, cases where the shafts are detached from the pier and coupled to it by annulets at regular heights, as in the Early English period. Compound piers can often be found in Romanesque cathedrals of France and Norman architecture of England, including cathedrals of Durham, Winchester, Ely, and Peterborough. The Gothic evolution of the idea is frequently called a clustered column or cluster column. Pilier cantonné A pilier cantonn� ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
