The Structural Engineer > Archive > Volume 10 (1932) > Issues > Issue 8 > Correspondence. Laterally Unsupported Beams
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Correspondence. Laterally Unsupported Beams

SIR,-with reference to Mr. Procter’s interesting paper on “Laterally Unsupported Beams” in your July issue, I note that the adopts for J the effective polar moment of inertia for an I-beam section in torsion, the approximate formula ...