structural-shape

Struc"tur*al shape. (Engin. & Arch.) Defn: The shape of a member especially adapted to structural purposes, esp. in giving the greatest strength with the least material. Hence, Colloq., Defn: any steel or iron member of such shape, as channel irons, I beams, T beams, etc., or, sometimes, a column, girder, etc., built up with such members.

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