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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: Design of Concrete Bridges for Temperature Gradients
Author(s): M. J. Nigel Priestley
Publication: Journal Proceedings
Appears on pages(s): 209-217
Keywords: box beams;bridges (structures);continious beams;cracking (fracturing); delfection;girder bridges;heat transfer;prestressed concrete;reinforced concrete;serviceablity;stresses;structural analysis;thermal gradient;thermal stresses.
Abstract:This paper reviews the state of the art of ambient thermal loading of prestressed and reinforced concrete bridges. Discussion is generally confined to the behavior under vertical temperature gradients induced by solar radiation input to the deck surface. Methods for predicting design tempurature gradients from local metorlogical conditions are discussed, and a general analytical method for predicting the vertical distribution of thermally induced stress is developed. Results from laboratory and in situ experiments confirm the validity of the analytical approach. The influence of cracking on the thermal response and the sgnificance of thermal loading to ultimate capacity are briefly discussed.
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