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CLASSICAL CIVILIZATIONS. 3. Rome. Ancient Roman Design Drew Extensively on Greek Precedents.
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CLASSICAL CIVILIZATIONS 3. Rome
The links were the Etruscan civilization on the Italian peninsula, which had in turn been influenced by the Greek colonies in Italy, and the direct contact that occurred as the Roman invaded Greece.
Known only from surviving traces, and from the verbal description provided by the Roman writings of Vitruvius.
Houses followed the Greek Megaron type, Made with Mud-brick and Wood as the primary materials.
Columned front portico with a gabled pediment above suggests the Greek style temple architecture. • An order based on Greek practice was used simplified Doric column with base similar to the Ionic order. As taken over and executed in stone later by the Romans, this became known as the Tuscan order, the first of the five orders identified as Roman.
Rome was founded according to tradition in 753 B.C.E. expanded its power to control all of Italy. • By 300 B.C.E. the City-State has expanded its power to control all of Italy. • From 150 B.C. E. to 400 C.E. it controlled most of the known Western Civilized World.
In design, the Romans were content to borrow the aesthetic concepts of the Greeks, expanding , elaborating, and ornamenting them as they chose.
The Romans were mastered of OrganizationalandTechnical skills. • It is in great engineering works: Roads, Bridges, and Aqueducts. • The achievement of the Romans most striking is the creation of vast interior spaces.
The use of arches in spanning wide openings with permanent materials was known to the Egyptians and to the Greeks, but arched constructions was used in limited, general utilitarian ways by these civilizations.
Romans explore the full possibilities of the arch and apply them in the creation of interior spaces within major buildings.
An arch: is an arrangement of wedge-shaped stones put together so that each stone, or Voussoir, is held trapped between its neighbors on either side.
Arches are most often made in the familiar curved form; its semicircularform is often called a Roman Arch.
Arches pose two technical problems: • The First involves construction technique; all of the stones of an arch must be in place before it will stand.
The Second problem of arch construction results from the fact that the Wedging Action of the Voussoirs transmits pressure sideways through the arch, generating an outward force or THRUST that must be resisted in some way.
Arches can span wide openings, but masonry roofing of an interior space requires the extension of an arch to form a Vault.
The simple extended arch vault, called BARREL VAULT or (Tunnel Vault) must rest on massive walls on either side to absorb its thrust.
A more complex vault results from the form generated by the right-angle Intersection of two Barrel Corners vaults. This requires support only at its four corners as it exerts outward thrust in two directions at those points.
Roman developed the DOME; a kind of round vault having the form of a half or smaller segment of a SPHERE
A Dome can cover only a circular space and requires support around its perimeter.
In addition to the Arch, Vault and Dome building in neatly cut stone called ASHLAR, the Romans added the use of a strong and lasting thin, flat squaresFIRED BRICK
ASHLER The term is frequently used to describe the dressed stone work of Prehistoric Greece and Crete.
Romans developed: • 1. Concrete: A mix of cement or mortar (Romans use volcanic ash called Pozzolana) with stones or gravel and water to make a substance that would flow into place in any desired form and subsequently hardeninto an artificial stone.
2. Stone was the material (most used for visible exterior and interior surfaces)
Roman engineering was put to use in the building of huge stadium amphitheaters, such as the famous Coliseum in Rome (72-80 C.E).
