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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: Temperature Distributions and Stresses in Concrete Bridges
Author(s): D. S. Prakash Rao
Publication: Journal Proceedings
Appears on pages(s): 588-596
Keywords: beams (supports); box beams; bridges (structures); concrete slabs;
continuous beams; finite difference theory; finite strip method; heat transfer;
solar radiation; temperature; thermal stresses.
Abstract:Temperature distribution and the resultant stresses in a concrete bridge depend upon several factors, of which ambient conditions and support details are the most important. A series solution is adopted for linear heat flow analysis and the results are compared with those from the Finite Difference Method. The influence of dissimilar climatic data of Christchurch, New Zealand, Melbourne, Australia, and New Delhi, India on the temperature distribution is studied, and design temperature distributions for the Melbourne data are proposed. The influences of the blacktop thickness and ventilation of the air-cell in box girders are also studied. Some of the inferences drawn from these studies are at variance with the results available in the published literature. The proposed temperature distributions can be used for ambient climatic data similar to those adopted in this article.
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