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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.
Timber framing is a general term for building with wooden posts and beams. The term post is the namesake of other general names for timber framing such as post-and-beam, post-and-girt construction and more specific types of timber framing such as Post and lintel, post-frame, post in ground, and ridge-post construction.
Spiral columns are cylindrical columns with a continuous helical bar wrapping around the column. The spiral acts to provide support in the transverse direction and prevent the column from barreling. The amount of reinforcement is required to provide additional load-carrying capacity greater than or equal to that attributed from the shell as to ...
The shaft is wider at the bottom than at the top, because its entasis, beginning a third of the way up, imperceptibly makes the column slightly more slender at the top, although some Doric columns, especially early Greek ones, are visibly "flared", with straight profiles that narrow going up the shaft.
The large columns at Persepolis have as many as 40 or 48 flutes, with smaller columns elsewhere 32; the width of a flute is kept fairly constant, so the number of flutes increases with the girth of the column, in contrast to the Greek practice of keeping the number of flutes on a column constant and varying the width of the flute. [15]
Column – in most larger, multi-storey buildings, vertical loads are primarily borne by columns / pillars instead of structural walls; Tube frame structure – Some of the world's tallest skyscrapers use load-bearing outer frames – be it single tube (e.g. the old WTC Twin Towers), or bundled tube (e.g. the Willis Tower or the Burj Khalifa)
The two earliest Egyptian capitals of importance are those based on the lotus and papyrus plants respectively, and these, with the palm tree capital, were the chief types employed by the Egyptians, until under the Ptolemies in the 3rd to 1st centuries BC, various other river plants were also employed, and the conventional lotus capital went through various modifications.
An Islamic architectural term for the tribune raised upon columns, from which the Koran is recited and the prayers intoned by the Imam of the mosque. [28] Temples which have a double range of columns in the peristyle, as in the temple of Diana at Ephesus. [29] Distyle in antis Having two columns. A portico having two columns between two anta [30]