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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Behavior of Continuous Prestressed Concrete Beams
Author(s): Neil M. Hawkins, Mete A. Sozen,
and Chester P. Siess
Publication: Special Publication
Appears on pages(s): 259-294
Abstract:With discussion by Milik Tichy. The results of 22 tests of two-span continuous prestressed concrete beams are described and analyzed. The pretensioned beams were loaded to failure with concentrated, stationary loads placed at the middle of each span. The variables in the tests were: Shape of cross section, concrete strength, amount of longitudinal reinforcement, effective depth, and web reinforcement. The behavior of the beams is described in terms of deflections, strains, and crack patterns. The characteristic features of failuresunder the primary influence of shear and of flexure are distinguished. The requirements for moment redistribution are discussed. The phenomenon of inclined tension cracking, of critical importance in moment redistribution, is studied quantitatively. The effect of web reinforcement in compensating for the influence of inclined cracking is evaluated.
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