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Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/11861

Authors: Al-Zaid, Naaman, A.E., R.Z.,
Nowak, A.S.
Keywords: Engineering controlled terms: COMPOSITE MATERIALS CREEP; CONCRETE CONSTRUCTION - Prestressing; STEEL; STRESSES - Strain
Issue Date: 1988
Publisher: American Society of Civil Engineers
Citation: Journal of Hydraulic Engineering Volume 114, Issue 2, February 1988, Pages 269-291
Abstract: A general time-step analysis procedure for prestressed and partially prestressed concrete composite beams is presented. The analytical model considers the effects of creep (time and cyclic dependent), shrinkage of concrete, and relaxation of prestressing steel. The model developed satisfies equilibrium of forces and compatibility of strains with time and leads to the prediction of stresses and strains in the constituent materials at any time t and number of cycles N//t. For the initial time or the first cycle, the model is shown to reduce to existing models applicable to the analysis of partially prestressed beams under short-term static loading. Solutions for uncracked composite sections as well as cracked and uncracked noncomposite sections are derived as special cases. A computerized parametric evaluation is briefly described and numerical examples are developed to illustrate the application of the method.
URI: http://hdl.handle.net/123456789/11861
ISSN: 07339429
Appears in Collections:College of Engineering

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