Research Article
Aug 1972
Load Balancing Analysis of Cable Stayed Bridges
Authors: Benjamin E. Lazar, M.ASCE, Michael S. Troitsky, M.ASCE, and Matthew McC. Douglass, M.ASCEAuthor Affiliations
Publication: Journal of the Structural Division
Volume 98, Issue 8
Abstract
The cable stayed bridge is a structure well suited for load balancing, that is for reduction of bending moments and displacements throughout the structure by post-tensioning the cables. The problem was approached frist from the point of view of reducing bending moments. A procedure was developed to achieve this reduction. The first step of this method consists of determining the bending moments due to a unit force applied successively along each cable of the bridge system. Next, a system of equations is written to express the condition that the sum of the bending moments due to unknown post-tensioning forces in the cables, shall be opposite in sign and equal to a fraction of the bending moment caused by the action of the dead load. By solving this system of equations, the post-tensioning forces in cables are determined. A computer program was written in FORTRAN language to carry out the computations.
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Information
Published In
Journal of the Structural Division
Volume 98 • Issue 8 • August 1972
Pages: 1725 - 1740
Copyright
© 1972 American Society of Civil Engineers.
History
Published in print: Aug 1972
Published online: Feb 1, 2021
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Authors
Affiliations
Benjamin E. Lazar, M.ASCE
Asst. Prof. of Civ. Technology and Head of Construction Program, Univ. of Houston, Houston, Tex
Michael S. Troitsky, M.ASCE
Assoc. Prof. of Civ. Engrg., Sir George Williams Univ., Montreal, Canada
Matthew McC. Douglass, M.ASCE
Assoc. Prof. and Chmn., Dept. of Civ. Engrg., Sir George Williams Univ., Montreal, Canada
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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.