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A steel column is extended by welding or bolting splice plates on the flanges and webs or walls of the columns to provide a few inches or feet of load transfer from the upper to the lower column section. A timber column is usually extended by the use of a steel tube or wrapped-around sheet-metal plate bolted onto the two connecting timber sections.
The best-known and most-copied examples are those of the six figures of the Caryatid porch of the Erechtheion on the Acropolis at Athens. One of those original six figures, removed by Lord Elgin in the early 19th century in an act which severely damaged the temple and is widely considered to be vandalism and looting, is currently in the British ...
Post and lintel construction of the Airavatesvara Temple, India, a World Heritage Monument site Leinster House in Dublin retains column-shaped pilasters under a pediment for aesthetic reasons. Post and lintel (also called prop and lintel , a trabeated system , or a trilithic system ) is a building system where strong horizontal elements are ...
While Greek temples employed columns for load-bearing purposes, Roman architects often used columns more as decorative elements. [27] They tend to use fluting less often than the Greeks in the Ionic and Corinthian orders, and to mix fluted and unfluted columns in the same building more often.
An umbral or lintel was added for support of the viga along with vertical posts in these spaces. [12] The porch's roof treatment was the same as in the interior room, but the space provided was used for different purposes. Vigas were usually installed with the smaller ends to one side of the roof to facilitate good drainage. [12]
The capital rests on the shaft. It has a load-bearing function, which concentrates the weight of the entablature on the supportive column, but it primarily serves an aesthetic purpose. The necking is the continuation of the shaft, but is visually separated by one or many grooves. The echinus lies atop the necking.
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