Plastic Design of Web Openings in Steel Beams

by Marvin A. Larson, (F.ASCE), Struct. Supervisor; Dept. of Commercial and Institutional Projects, Kaiser Engrs., Oakland, Calif.,
Kirit N. Shah, (M.ASCE), Project Engr.; Transportation Div., Kaiser Engrs., Oakland, Calif.,

Serial Information: Journal of the Structural Division, 1976, Vol. 102, Issue 5, Pg. 1031-1041

Document Type: Journal Paper


Steel beams and girders used in building construction are sometimes required to accommodate the passage of ductwork or piping through openings in the web. A method is presented for the determination of the amount of reinforcing required at such a rectangular web opening and for estimating the load capacity in shear and flexure using plastic design principles.

Subject Headings: Plastic design | Steel beams | Web beams | Webs (structure) | Steel construction | Load bearing capacity | Girders | Pipes

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