A Generalized Deflection Theory for Suspension Bridges
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VIEW THE REPLYPublication: Transactions of the American Society of Civil Engineers
Volume 100, Issue 1
Abstract
An improved and extended Deflection Theory for suspension bridges is presented in this paper. The theory is generalized to include structures of any number of spans, continuous or non-continuous, symmetrical or unsymmetrical, and with or without tie cables.
The more general adoption of the continuous type of suspension bridge, offering advantages of economy and rigidity, has been retarded by the lack of an accurate theory for its analysis. The Deflection Theory for simple-span suspension bridges has been available to the Engineering Profession for more than forty-five years; but, thus far, the corresponding theory for the suspension bridge with continuous stiffening truss has been lacking.
In order to supply this deficiency, the writer has undertaken to develop a Generalized Deflection Theory, applicable to both continuous and non-continuous, three-span, and multiple-span structures. By simply dropping the recognizable terms due to continuity, the formulas are reduced to those for the simpler case of stiffening trusses hinged at the towers. In the development of the analysis herein presented, maximum simplicity of formulas and ease of practical application have been governing considerations. Incidentally, new simplifications are here developed and introduced in the working formulas hitherto published for the two-hinged type.
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Published In
Transactions of the American Society of Civil Engineers
Volume 100 • Issue 1 • January 1935
Pages: 1133 - 1170
Copyright
© 1935 American Society of Civil Engineers.
History
Published in print: Jan 1935
Published online: Feb 10, 2021
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