Research Article
Feb 1967
Computer Analysis of Highway Bridge Girders
Publication: Journal of the Structural Division
Volume 93, Issue 1
Abstract
A computational procedure is presented for computer analysis of continuous highway bridge girders with unlimited number of spans and variable moment of inertia with or without floor beams. The length of the girder is subdivided into many elements. Then, by using the Moment Area method of analysis, the influence lines for deflection, reactions, moment, and shear are determined. For automatic computation of impact effects, a new method is proposed which uses impact modified influence lines. The influence lines are then loaded with dead loads and standard AASHO live loads. The loading of influence lines with moving loads can be formulated as a mathematical programming problem consisting of optimization of the effects of moving loads subject to constraints and limitations between the spacing of axles and vehicles. The envelope of maximum, minimum, and absolute maximum effects are obtained and the stresses are determined. This computational procedure is programmed in ALGOL-60 Compiler for an 1107-Univac Digital Computer. A numerical example is presented.
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Information
Published In
Journal of the Structural Division
Volume 93 • Issue 1 • February 1967
Pages: 319 - 341
Copyright
© 1967 American Society of Civil Engineers.
History
Published in print: Feb 1967
Published online: Feb 1, 2021
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Authors
Affiliations
Reza Razani, AM.ASCE
Assoc. Prof. of Structures, Pahlavy Univ., Shiraz, Iran
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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.
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.
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.