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Experimental analysis of reinforced concrete block masonry walls subjected to in-plane cyclic loading / Vladimir G. Haach in Journal of structural engineering, Vol. 136 N° 4 (Avril 2010) 

Public ISBD [article]  in Journal of structural engineering > Vol. 136 N° 4 (Avril 2010) . - pp. 452-462 Titre : Experimental analysis of reinforced concrete block masonry walls subjected to in-plane cyclic loading Type de document : texte imprimé Auteurs : Vladimir G. Haach, Auteur ; Graca Vasconcelos, Auteur ; Paulo B. Lourenco, Auteur Année de publication : 2010 Article en page(s) : pp. 452-462 Note générale : Génie Civil Langues : Anglais (eng) Mots-clés : Concrete  block  masonry  walls  Vertical  and  horizontal  reinforcement  In-plane  behavior  Shear  Seismic  performance Index. décimale : 624 Constructions du génie civil et du bâtiment. Infrastructures. Ouvrages en terres. Fondations. Tunnels. Ponts et charpentes Résumé : An innovative system for reinforced concrete masonry walls based on the combination of vertical and horizontal trussed reinforcement is proposed. The mechanical characterization of the seismic behavior of such reinforced masonry walls is based on static cyclic tests carried out on panels with appropriate geometry. The influence of the factors influencing the in-plane cyclic behavior of concrete masonry walls, such as the horizontal reinforcement, precompression, and masonry bond pattern, is discussed. The results are analyzed in terms of failure modes and force versus displacement diagrams, from which the seismic performance is assessed based on the ductility and energy capacity dissipation. The results stressed that the increase on the precompression level leads to a stiffer and more brittle lateral behavior of the masonry walls. The presence of horizontal reinforcement ensures better control and better distribution of cracking, even if only a marginal increase of lateral strength was found in the particular testing program. DEWEY : 624.17 ISSN : 0733-9445 En ligne : http://ascelibrary.org/sto/resource/1/jsendh/v136/i4/p452_s1?isAuthorized=no [article] Experimental analysis of reinforced concrete block masonry walls subjected to in-plane cyclic loading [texte imprimé] / Vladimir G. Haach, Auteur ; Graca Vasconcelos, Auteur ; Paulo B. Lourenco, Auteur . - 2010 . - pp. 452-462. Génie Civil Langues : Anglais (eng) in Journal of structural engineering > Vol. 136 N° 4 (Avril 2010) . - pp. 452-462 Mots-clés : Concrete  block  masonry  walls  Vertical  and  horizontal  reinforcement  In-plane  behavior  Shear  Seismic  performance Index. décimale : 624 Constructions du génie civil et du bâtiment. Infrastructures. Ouvrages en terres. Fondations. Tunnels. Ponts et charpentes Résumé : An innovative system for reinforced concrete masonry walls based on the combination of vertical and horizontal trussed reinforcement is proposed. The mechanical characterization of the seismic behavior of such reinforced masonry walls is based on static cyclic tests carried out on panels with appropriate geometry. The influence of the factors influencing the in-plane cyclic behavior of concrete masonry walls, such as the horizontal reinforcement, precompression, and masonry bond pattern, is discussed. The results are analyzed in terms of failure modes and force versus displacement diagrams, from which the seismic performance is assessed based on the ductility and energy capacity dissipation. The results stressed that the increase on the precompression level leads to a stiffer and more brittle lateral behavior of the masonry walls. The presence of horizontal reinforcement ensures better control and better distribution of cracking, even if only a marginal increase of lateral strength was found in the particular testing program. DEWEY : 624.17 ISSN : 0733-9445 En ligne : http://ascelibrary.org/sto/resource/1/jsendh/v136/i4/p452_s1?isAuthorized=no