Research Article
Nov 1972
Static Analysis of Suspension Bridges
Authors: Alan Jennings and John E. MairsAuthor Affiliations
Publication: Journal of the Structural Division
Volume 98, Issue 11
Abstract
With the advent of digital computers it has become possible to analyze suspension bridges taking account of hangers as individual members. As the behavior is nonlinear satisfactory convergence is most likely to be obtained in the solution of the governing equations if a Newton-Raphson method is used for correcting the basic variables. Compatibility and equilibrium methods are developed which produce symmetric equations to be solved at each iteration. By suitable choice and ordering of the variables these equations can be made to fit well into a variable bandwidth store thus producing an efficient form of computer solution. The most efficient of these methods is the compatibility method in which the horizontal component of hanger force is ignored. In cases where the stiffening girder is a Warren truss the compatibility method also shows advantage, but in other cases the equilibrium method is likely to be preferred because the equations are more easily constructed.
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Published In
Journal of the Structural Division
Volume 98 • Issue 11 • November 1972
Pages: 2433 - 2454
Copyright
© 1972 American Society of Civil Engineers.
History
Published in print: Nov 1972
Published online: Feb 1, 2021
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Authors
Affiliations
Alan Jennings
Reader, Civ. Engrg. Dept., Queens's Univ., Belfast, Northern Ireland; formerly Civ. Engrg. Dept., Royal Military College, Kingston, Ontario, Canada
John E. Mairs
Engr., Freeman Fox and Partners, London, England
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ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
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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.