Concrete stress distribution factors for high-performance concrete / R. B. Khadiranaikar in Journal of structural engineering, Vol. 138 N° 3 (Mars 2012)  

Public ISBD [article]  inJournal of structural engineering > Vol. 138 N° 3 (Mars 2012) . - pp. 402-415 Titre : Concrete stress distribution factors for high-performance concrete Type de document : texte imprimé Auteurs : R. B. Khadiranaikar, Auteur ; Mahesh M. Awati, Auteur Année de publication : 2012 Article en page(s) : pp. 402-415 Note générale : Génie Civil Langues : Anglais (eng) Mots-clés : Compression Codes Design Eccentric loads High-performance concrete Peak strain Stress Résumé : Most of the existing codes are using stress-block parameters which were derived for normal strength concrete. Several researchers in the past have reported that use of ACI 318 stress-block parameters results in un-conservative design of reinforced concrete members for high-performance concrete (HPC). Recent revision of Indian Standard Code IS 456 for design of reinforced members does not include the provisions for strength of concrete beyond 55 MPa. Present research aims at developing the stress-block parameters for wide range of concrete strength between 40–120 MPa. The experimental program includes testing of plain concrete columns, reinforced concrete members such as eccentrically loaded columns, and beams in pure flexure. Moment interaction curves are developed for the column data of the present and previous research. An error analysis is incorporated to prove the consistent conservativeness obtained by the use of the proposed stress-block parameters. DEWEY : 624.17 ISSN : 0733-9445 En ligne : http://ascelibrary.org/sto/resource/1/jsendh/v138/i3/p402_s1?isAuthorized=no [article] Concrete stress distribution factors for high-performance concrete [texte imprimé] / R. B. Khadiranaikar, Auteur ; Mahesh M. Awati, Auteur . - 2012 . - pp. 402-415. Génie Civil Langues : Anglais (eng) in Journal of structural engineering > Vol. 138 N° 3 (Mars 2012) . - pp. 402-415 Mots-clés : Compression Codes Design Eccentric loads High-performance concrete Peak strain Stress Résumé : Most of the existing codes are using stress-block parameters which were derived for normal strength concrete. Several researchers in the past have reported that use of ACI 318 stress-block parameters results in un-conservative design of reinforced concrete members for high-performance concrete (HPC). Recent revision of Indian Standard Code IS 456 for design of reinforced members does not include the provisions for strength of concrete beyond 55 MPa. Present research aims at developing the stress-block parameters for wide range of concrete strength between 40–120 MPa. The experimental program includes testing of plain concrete columns, reinforced concrete members such as eccentrically loaded columns, and beams in pure flexure. Moment interaction curves are developed for the column data of the present and previous research. An error analysis is incorporated to prove the consistent conservativeness obtained by the use of the proposed stress-block parameters. DEWEY : 624.17 ISSN : 0733-9445 En ligne : http://ascelibrary.org/sto/resource/1/jsendh/v138/i3/p402_s1?isAuthorized=no

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