Minimum Cost Selection of One-Way Slab Thickness

by Russell H. Brown, (A.M.ASCE), Assoc. Prof. of Civ. Engrg.; Univ. of Houston, Houston, Tex.,


Serial Information: Journal of the Structural Division, 1975, Vol. 101, Issue 12, Pg. 2585-2590


Document Type: Journal Paper

Discussion: Martin Ignacio (See full record)
Discussion: Naaman Antoine E. (See full record)
Discussion: Srinivasan C. N. (See full record)
Discussion: Gustafson David P. (See full record)
Discussion: Thakkar Manhar C. (See full record)
Discussion: Rajagopalan Krishnaiyengar (See full record)
Discussion: Subrahmanyam B. V. (See full record)
Discussion: Syal Ishwar C. (See full record)
Closure: (See full record)

Abstract: Considerable cost savings can result from the design of one-way reinforced concrete slabs, beams of constant width, and footings based on cost minimization techniques of flexural capacity. Equations for minimum cost slab depth are developed and a simple iterative method of their solution is presented. Resulting slab costs are compared, one using the minimum cost procedure, the other based on minimum slab thickness requiring no deflection check. The minimum cost slab usually requires a deflection check except where steel is expensive relative to concrete or for intense design loads.

Subject Headings: Reinforced concrete | Concrete beams | Thickness | Displacement (mechanics) | Foundation design | Concrete slabs | Footings

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