Research Article
Aug 1964
Influence Functions for Beams on Elastic Foundations
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VIEW THE REPLYPublication: Journal of the Structural Division
Volume 90, Issue 4
Abstract
Equations for beams on elastic foundations are summarized and simplified. Dimensionless influence functions are developed. Analysis of beams is reduced to simple evaluation of one-term algebraic expression. Deflection, slope, moment, and shear functions due to unit load or moment are evaluated for beams of constant elastic properties and foundation modulus. The functions are tabulated for beams of finite length and graphed for beams of semi-infinite length. The basis for comparison of functions of beams of finite with semi-infinite and infinite length is established. The tabulated and plotted data can be directly used in design or in construction of influence lines. Evaluation of functions for beams of variable elastic properties and modulus of foundation is explained, and their use in the design of a compatible beam is demonstrated.
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Published In
Journal of the Structural Division
Volume 90 • Issue 4 • August 1964
Pages: 63 - 101
Copyright
© 1964 American Society of Civil Engineers.
History
Published in print: Aug 1964
Published online: Feb 1, 2021
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Authors
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Alexander Dodge, F.ASCE
Cons. Engr., Design Branch, Corps of Engrs., Portland, Oreg.
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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.