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straining beam[′strān·iŋ ‚bēm]
A short piece of timber in a truss that holds the ends of struts or rafters. Also known as straining piece.
straining beam, straining piece, strutting piece
In a truss, a horizontal strut above the tie beam or above a line joining the feet of the rafters, commonly between the joists at midspan; esp. in a queen post truss, the strut between the upper ends of the two queen posts.