Research Article
Jan 1926
Secondary Stresses in Bridges
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VIEW THE REPLYPublication: Transactions of the American Society of Civil Engineers
Volume 89, Issue 1
Abstract
The paper first describes all the methods which have been proposed for the complete analysis of secondary stresses due to the rigidity of the joints in bridge trusses. Approximate methods, however, such as those of Engesser and Landsberg, which neglect the effect of the web system, are not included.
A typical through railway bridge of six panels is analyzed by each method in turn, using unsymmetrical loading, in order to test more thoroughly the advantages and disadvantages of each method. A critical comparison is then made of the methods thus applied.
Influence lines are developed for the secondary stresses in all the members of the main trusses, in the top chords as effected by the top lateral system, and in a typical cross-frame. These influence lines are then combined for the purpose of computing the maximum secondary stresses in certain typical members.
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© 1926 American Society of Civil Engineers.
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Published in print: Jan 1926
Published online: Feb 10, 2021
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Cecil Vivian von Abo, J.ASCE
Care, Chf. Civ. Engr., South African Rivers and Harbors, Johannesburg, Transvaal, South Africa.
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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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