Abstract
In the 40 years since the American Concrete Institute (ACI) 318-56 Code introduced the ultimate strength design method, it has become the primary method for reinforced concrete design in the United States. The concept of ultimate or limit state design has also been incorporated into building codes around the world. However, the codes of different countries do not agree on the factors used to relate the service loads to ultimate loads. This article reviews the basis for the strength design method and compares the treatment of the strength design concept by codes around the world.
Résumé
Au cours des 40 années qui ont suivi l'introduction, grâce au code de l'American Concrete Institute ACI 318-56, de la méthode de calcul de la résistance à la rupture, celle-ci est devenue la plus couramment utilisée aux États-Unis pour le calcul du béton armé. Le concept de calcul à l'état-limite ou à la rupture a également été introduit dans les codes du bâtiment de divers pays. Toutefois, ces codes ne concordent pas sur les facteurs utilisés pour établir la corrélation entre charges de service et charges ultimes. L'article analyse les bases de cette méthode de calcul et compare les diverses façons dont ce concept est traité dans les codes à travers le monde.
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References
ACI Committee 318, ‘Building Code Requirements for Reinforced Concrete (ACI 318-89)’, American Concrete Institute, Detroit, MI, USA, 1989, 111 pages. Also 318-56, 318-63, 318-71, 318-77, and 318-83
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Editorial note Dr. Tarun R. Naik is a RILEM Senior Member, Since 1992 he has been involved in the work of RILEM Technical Committee 126-IPT on in-place testing of hardened concrete.
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Zachar, J.A., Naik, T.R. The strength design method for reinforced concrete around the world. Mat. Struct. 29, 250–252 (1996). https://doi.org/10.1007/BF02485947
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DOI: https://doi.org/10.1007/BF02485947