Research Article
Jan 1954
Lateral Buckling of Channels and Z-Beams
Publication: Transactions of the American Society of Civil Engineers
Volume 119, Issue 1
Abstract
Beams having moments of inertia that differ when referred to the two principal axes may buckle in the direction of least stiffness when loaded in the· direction of greater stiffness. The author presents the results of a series of investigations into the lateral buckling of channel sections and Z-sections that are loaded in the direction of greater stiffness. The investigations included tests on beams and an analytical consideration of the problem which were aimed at devising a rational procedure for the design of such beams. Because of the resistance to twist, arising from the restraint to warping of the cross sections of the beams, the torsion-bending factor is introduced. This factor is shown to be a property of the cross section as vital to proper design as the commonly used section modulus and moment of inertia.
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© 1954 American Society of Civil Engineers.
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Published in print: Jan 1954
Published online: Feb 10, 2021
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H. N. Hill, M.ASCE
Asst. Chf., Eng. Design Div., Aluniinum Co. of America, New Kensington, Pa.
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Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
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