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UBC Theses and Dissertations

Simplified calculation of cable tension in suspension bridges Richmond, Kenneth Marvin

Abstract

This thesis presents a method which facilitates rapid determination of the cable tension in suspension bridges. A set of tables and curves is included for use in the application of the method. The method is valid for suspension bridges with stiffening girders or trusses either hinged at the supports or continuous. A modified superposition method is discussed and the use of influence lines for cable tension in non-linear suspension bridges is demonstrated. A derivation of the suspension bridge equations is included and various refinements in the theory are discussed. A computer program to analyse suspension bridges was written as an aid in the research and for the purpose of testing the manual method proposed. A description of the program is included along with Its Fortran listing.

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