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Founded in 1904 and headquartered in Farmington Hills, Michigan, USA, the American Concrete Institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensus-based standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete design, construction, and materials, who share a commitment to pursuing the best use of concrete.
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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: A Constitutive Law for Concrete at Transient High Temperature Conditions
Author(s): Y. Anderberg and S. Thelandersson
Publication: Special Publication
Appears on pages(s): 187-206
Keywords: tion; high temperature rise
tern erature; strains;
in concrete); thermal
concretes; creep properties; deforma-stress-
strain relationships; tempera-expansion;
thermal gradient; thermal
Abstract:A computer-oriented constitutive model for concrete in compresslon, valid at first heating of concrete up to 800 C is described. The total deformation is expressed in terms of thermal, instantaneous stress-related, creep and transient strain components, where the transient strain is a concept introduced to describe the particular behavior under changing temperature. Comparisons with independent tests demonstrate that the material behaviour is described in a very appropriate way. The model is applied in a simple example calculation, showing that thermal stresses due to non-uniform temperature distribution are very insignificant or even nonexistant.Stresses due to restrained thermal expansion cannot in themselves contribute to compression failure of concrete.
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