Deflections of Multiple-Panel Reinforced Concrete Floor Slabs

by Mortimer D. Vanderbilt,
Mete A. Sozen,
Chester P. Siess,

Serial Information: Journal of the Structural Division, 1965, Vol. 91, Issue 4, Pg. 77-102

Document Type: Journal Paper


An approximate method is developed to calculate the short-time deflections of multiple-panel reinforced concrete floor slabs. The results of the method are compared with those of exact solutions and tests on five multiple-panel reinforced concrete test structures. The short-time deflections of reinforced concrete slabs under existing working loads are predicted better on the basis of the uncracked sections because a large part of the slab area is uncracked. Slab construction may owe its successful behavior under working loads primarily to the tensile strength of the concrete.

Subject Headings: Reinforced concrete | Ultimate strength | Displacement (mechanics) | Concrete slabs | Floors | Structure reinforcement | Load factors | Material tests

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