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Influence of steel fibers and headed bars on the serviceability of high-strength concrete corbels / Jun-Mo Yang in Journal of structural engineering, Vol. 138 N° 1 (Janvier 2012) 

Public ISBD [article]  in Journal of structural engineering > Vol. 138 N° 1 (Janvier 2012) . - pp. 123-129 Titre : Influence of steel fibers and headed bars on the serviceability of high-strength concrete corbels Type de document : texte imprimé Auteurs : Jun-Mo Yang, Auteur ; Joo-Ha Lee, Auteur ; Young-Soo Yoon, Auteur Année de publication : 2012 Article en page(s) : pp. 123-129 Note générale : Génie Civil Langues : Anglais (eng) Mots-clés : Corbels  Steel  fibers  Headed  bars  High-strength  concrete  Serviceability Résumé : Vertical loading tests are reported for six double-sided, high-strength concrete corbel specimens. The primary variables of the investigation were the percentage of steel fibers and the anchorage method of the main tension tie. The test results indicated that performance in terms of load-carrying capacities, stiffness, ductility, and crack width was improved, as the steel fibers were added and the percentage of steel fibers was increased. The corbel specimens with headed bars used as the main tension-tie reinforcement showed superior load-carrying capacities, stiffness, and ductility compared with the corbel specimens in which the main tension ties were anchored by welding to the transverse bars. From the test results, it is expected that the load-carrying capacities, serviceability, and durability of high-strength concrete corbels would be improved by using steel fibers and headed bars. Experimental results presented were also compared with various prediction models. DEWEY : 624.17 ISSN : 0733-9445 En ligne : http://ascelibrary.org/sto/resource/1/jsendh/v138/i1/p123_s1?isAuthorized=no [article] Influence of steel fibers and headed bars on the serviceability of high-strength concrete corbels [texte imprimé] / Jun-Mo Yang, Auteur ; Joo-Ha Lee, Auteur ; Young-Soo Yoon, Auteur . - 2012 . - pp. 123-129. Génie Civil Langues : Anglais (eng) in Journal of structural engineering > Vol. 138 N° 1 (Janvier 2012) . - pp. 123-129 Mots-clés : Corbels  Steel  fibers  Headed  bars  High-strength  concrete  Serviceability Résumé : Vertical loading tests are reported for six double-sided, high-strength concrete corbel specimens. The primary variables of the investigation were the percentage of steel fibers and the anchorage method of the main tension tie. The test results indicated that performance in terms of load-carrying capacities, stiffness, ductility, and crack width was improved, as the steel fibers were added and the percentage of steel fibers was increased. The corbel specimens with headed bars used as the main tension-tie reinforcement showed superior load-carrying capacities, stiffness, and ductility compared with the corbel specimens in which the main tension ties were anchored by welding to the transverse bars. From the test results, it is expected that the load-carrying capacities, serviceability, and durability of high-strength concrete corbels would be improved by using steel fibers and headed bars. Experimental results presented were also compared with various prediction models. DEWEY : 624.17 ISSN : 0733-9445 En ligne : http://ascelibrary.org/sto/resource/1/jsendh/v138/i1/p123_s1?isAuthorized=no