Flanged Reinforced Concrete Flexural Members

by S. Somayaji, (M.ASCE), Asst. Prof.; Dept. of Architectural Engrg., California Polytechnic State Univ., San Luis Obispo, Calif.,
R. B. Patel, Structural Engr.; Gopipura, Surat, India,

Serial Information: Civil Engineering—ASCE, 1983, Vol. 53, Issue 12, Pg. 50-53

Document Type: Feature article


Design aids in the forms of charts and tables are available for design of reinforced concrete flexural members. Many of these design aids were developed for design of rectangular cross sections, and may be used for design of flanged sections with some reservations. An alternate graphical method, known as the equilibrium diagram method, makes use of the equilibrium equations for forces and moments. The method can be used to find the effective depth of flanged cross sections for known or assumed reinforcement ratio, or to find the area of tension reinforcement in a known cross section. The diagrams are constructed solely for design of flanged sections, and the method of construction and use of the diagrams are detailed.

Subject Headings: Reinforced concrete | Cross sections | Flanges | Flexural strength | Equilibrium | Construction methods | Graphic methods | Moment (mechanics)

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