RESEARCH PAPERS: Vibrations Papers

Natural Frequency Determination of Long Span Floor Slabs

[+] Author and Article Information
J. Chadha

Hydro Electric Power Commission of Ontario, Toronto, Canada

D. L. Allen

Department of Mechanical Engineering, University of Toronto, Toronto, Canada

J. Eng. Ind 94(2), 660-664 (May 01, 1972) (5 pages) doi:10.1115/1.3428223 History: Received May 11, 1971; Online July 15, 2010


This paper presents a general procedure for calculating the natural frequencies of rectangular plate structures which have beam stiffeners in the interior and at the boundaries. The technique of analysis accounts for shear deflections and rotary inertia of the plate. The effect of torsional and flexural reactions of the supporting beams on the plate-beam structure has also been included. The natural frequencies are compared with experimental values and also with those obtained by orthotropic plate approximation and Rayleigh’s method.

Copyright © 1972 by ASME
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