In-Plane Buckling of Crane Jibs with Toplis Reeving

by John M. Leigh, (A.M.ASCE), Sr. Research Officer; BHP Melbourne Research Lab., Clayton, Victoria, Australia,
Maxwell G. Lay, (M.ASCE), Executive Dir.; Australian Research board, Clayton, Victoria, Australia,


Serial Information: Journal of the Structural Division, 1978, Vol. 104, Issue 5, Pg. 795-808


Document Type: Journal Paper

Abstract: This paper describes a method for determining the degree of in-plane restraint imposed by the load ropes at the jib head of luffing cranes with Toplis reeving. Stability relationships have been developed for jibs with uniform, tapered, and parabolic chords and design formulas have been derived for determining the effective length factor in each case. Reference is also made to solutions for the out-of-plane case.

Subject Headings: Cranes | Live loads | Load factors | Paraboloid | Effective length | Buckling

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