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The Quarterly Journal of Mechanics and Applied Mathematics 1951 4(3):257-259; doi:10.1093/qjmam/4.3.257
© 1951 by Oxford University Press
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BUCKLING OF A TRIANGULAR PLATE BY SHEARING FORCES

J. M. KLITCHIEFF

( Belgrade )

The dimensions of built-up plate girders are often taken so as to eliminate buckling of the web under service conditions. The corresponding spacing of transverse stiffeners is usually determined by considering a portion of the web between two stiffeners as a simply supported rectangular plate under the action of shearing forces.

In addition to transverse stiffeners, the web is often reinforced by diagonal stiffening ribs. To estimate their effect it is necessary, however, to know the value of the shearing force for which a simply supported triangular plate first begins to buckle (Fig.).

In what follows the spacing of transverse stiffeners is assumed equal to the depth of the web, so that the problem is that of the buckling of a right-angled isosceles triangle.


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