strut
strut. Any member in compression that keeps two others apart. It is found, for example, in roof structures between a tie-beam and a collar. Types of strut include:king-strut: vertical timber set on a collar or tie-beam extending to the apex of a pitched roof (with a ridge-piece, -plate, or -purlin);queen-strut: one of two vertical members framed between a tie-beam and a collar;rafter-strut: as raking-strut but vertical;raking-strut: one of a pair of straight or curved members set at an angle on the tie-beam and framed into a principal rafter, often supporting a purlin.
Bibliography
Alcock,, Barley,, Dixon,, & and Meeson (1996)
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