Chapter 9: Column Analysis and Design
Chapter 9: Column Analysis and Design Introduction columns are usually considered as vertical structural elements, but they can be positioned in any orientation ( diagonal and horizontal compression elements in a truss). columns are used as major elements in trusses, building frames, and sub-structure supports for bridges ( piers). columns support compressive loads from roofs, floors, or bridge decks. columns transmit the vertical forces to the foundations and into the subsoil. The work of a Column is simpler than the work of a beam. The loads applied to a Column are only axial loads.
Long columns fail by buckling at stress levels that are below the elastic limit of the column material. • Very short column lengths require extremely large loads to cause the member to buckle. • Large loads result in high stresses that cause crushing rather than buckling. Buckling in long, slender columns is due to the following.
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