Design of Flexural Reinforcement in Concrete Slabs

by Ajaya K. Gupta, (M.ASCE), Sr. Research Engr.; IIT Research Inst., Chicago, Ill.; formerly, Supervising Engr., Sargent & Lundy, Chicago, Ill.,
Siddhartha Sen, Chf. Struct. Engr.; Sargent & Lundy, Chicago, Ill.,

Serial Information: Journal of the Structural Division, 1977, Vol. 103, Issue 4, Pg. 793-804

Document Type: Journal Paper


Reinforced concrete slabs are designed based on the equilibrium or the yield line method. The equilibrium approach is recommended because the latter method gives an upper bound on strength which may require several iterations before an acceptable solution is obtained. With the advent of digital computers, sophisticated numerical methods, such as the finite element method, are often used to obtain an equilibrium solution based on the theory of elasticity. An elasticity solution, in general, yields a set of three moments at any point, i.e., Mx, My, and Mxy. Methods for designing flexural reinforcement in slabs analyzed elastically are presented.

Subject Headings: Elastic analysis | Equilibrium | Finite element method | Reinforced concrete | Plastic design | Concrete slabs | Computing in civil engineering | Flexural strength

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