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The pilaster is an in classical architecture used to give the appearance of a supporting column and to articulate an extent of wall, with only an ornamental function. It consists of a flat surface raised from the main wall surface, usually treated as though it were a column, with a capital at the top, plinth (base) at the bottom, and the various other elements. In contrast to a pilaster, an engaged column or buttress can support the structure of a wall and roof above. ==Definition== In discussing Leon Battista Alberti's use of pilasters, which Alberti reintroduced into wall-architecture, Rudolf Wittkower wrote, "The pilaster is the logical transformation of the column for the decoration of a wall. It may be defined as a flattened column which has lost its three-dimensional and tactile value."〔Wittkower, ''Architectural Principles in the Age of Humanism'' (1962) 1965:36.〕 A pilaster appears with a capital〔A useful phrase to identify a section of pilaster without a capital, with only its fluting to identify its relation to a column, is "pilaster strip".〕 and entablature, also in "low-relief" or flattened against the wall. Pilasters often appear on the sides of a door frame or window opening on the facade of a building, and are sometimes paired with columns or pillars set directly in front of them at some distance away from the wall, which support a roof structure above, such as a portico. These vertical elements can also be used to support a recessed archivolt around a doorway. The pilaster can be replaced by ornamental brackets supporting the entablature or a balcony over a doorway. When a pilaster appears at the corner intersection of two walls it is known as a canton.〔Ching, Francis D. K. (1995). A Visual Dictionary of Architecture. Van Nostrand Reinhold Company. ISBN 0-442-02462-2, p. 266.〕 As with a column, a pilaster can have a plain or fluted surface to its profile and can be represented in the mode of any architectural style. During the Renaissance and Baroque architects used a range of pilaster forms. In the giant order pilasters appear as two-storeys tall, linking floors in a single unit. The fashion of using this element from Ancient Greek and Roman architecture was adopted in the Italian Renaissance, gained wide popularity with Greek Revival architecture, and continues to be seen in some modern architecture. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「pilaster」の詳細全文を読む スポンサード リンク
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