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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: Thermal Stresses and Cracking of Concrete Bridges
Author(s): Mamdouh Elbadry and Amin Ghali
Publication: Journal Proceedings
Appears on pages(s): 1001-1009
Keywords: bridges (structures); cracking (fracturing); loads (forces); partial prestressing; precast concrete; prestressed concrete; segmental construction; structural analysis; temperature; tensile stress; thermal stresses.
Abstract:Distribution of temperature over a bridge cross section is generally nonlinear and produces stresses in the longitudinal and transverse directions. Tensile stresses due to temperature can be high enough to produce cracking; when this occurs, further increase of stresses due to temperature is greatly alleviated. A viable design approach is to employ partial prestressing, allowing cracking to limit stresses due to temperature while providing sufficient nonprestressed steel to control cracking. The feasibility of this approach to bridges in general and to precast segmental bridges is discussed.
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