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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: Deformations and Stresses in Flanged Concrete Structures Due to Temperature Differentials
Author(s): Fahim A. Batla, Patrick R. Reisnour,
and Divakar V. Pathak
Publication: Special Publication
Appears on pages(s): 395-406
Keywords: box beams; bridges (structures); deflection; defor-mation;
finite element method; flanges; reinforced concrete;
roofs; T-beams; temperature; thermal stresses.
Abstract:A difference in temperatures exist among the various components of a flanged concrete structure which are exposed to different ambient temperatures. An experimental study indicates that a substantial temperature differential between the top flange and the bottom portion of a prestressed concrete box girder bridge superstructure can exist due to the daily and seasonal variations of the surrounding atmospheric temperatures. This paper presents methods which may be used for the computation of deformations and stresses in concrete structures due to temperature differentials. Analyses of a T-beam and of a box girder bridge superstructure are also presented as illustrative examples. These examples indicate a need of revising the design codes to emphasize the effects of the temperature differential in flanged concrete structures.
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