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Effect of fabric webs on the static response of spindle-shaped tensairity columns / Thomas E. Wever 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. 410-418 Titre : Effect of fabric webs on the static response of spindle-shaped tensairity columns Type de document : texte imprimé Auteurs : Thomas E. Wever, Auteur ; Theofanis S. Plagianakos, Auteur ; Rolf H. Luchsinger, Auteur Année de publication : 2010 Article en page(s) : pp. 410-418 Note générale : Génie Civil Langues : Anglais (eng) Mots-clés : Tensairity  Lightweight  structures  Inflatable  structures  Fabrics  Axial  compression  Full-scale  tests  Webs Index. décimale : 624 Constructions du génie civil et du bâtiment. Infrastructures. Ouvrages en terres. Fondations. Tunnels. Ponts et charpentes Résumé : Tensairity is a lightweight structural concept comprising struts and cables stabilized by a textile membrane which is inflated by low pressurized air. This paper addresses the effect of fabric webs inside the membrane hull on the static response of spindle-shaped Tensairity columns to axial compression. Two full-scale spindle-shaped columns, one without and one with webs, were fabricated and tested. The columns were subjected to axial compressive loading for various levels of internal air pressure to quantify its effect on the global structural response. It was found that the stiffness and the load bearing capacity for both columns increased with increasing air pressure. The experimental results also revealed the benefits of including fabric webs in the spindle configuration in terms of axial stiffness and buckling load. Comparisons with an analytical solution and finite-element predictions showed good correlation for the axial stiffness in the case without webs. For the case with web deviations between predicted and experimental results indicated that structural detailing and imperfections in the manufacturing process strongly influence the performance of Tensairity columns with internal webs. DEWEY : 624.17 ISSN : 0733-9445 En ligne : http://ascelibrary.org/sto/resource/1/jsendh/v136/i4/p410_s1?isAuthorized=no [article] Effect of fabric webs on the static response of spindle-shaped tensairity columns [texte imprimé] / Thomas E. Wever, Auteur ; Theofanis S. Plagianakos, Auteur ; Rolf H. Luchsinger, Auteur . - 2010 . - pp. 410-418. Génie Civil Langues : Anglais (eng) in Journal of structural engineering > Vol. 136 N° 4 (Avril 2010) . - pp. 410-418 Mots-clés : Tensairity  Lightweight  structures  Inflatable  structures  Fabrics  Axial  compression  Full-scale  tests  Webs Index. décimale : 624 Constructions du génie civil et du bâtiment. Infrastructures. Ouvrages en terres. Fondations. Tunnels. Ponts et charpentes Résumé : Tensairity is a lightweight structural concept comprising struts and cables stabilized by a textile membrane which is inflated by low pressurized air. This paper addresses the effect of fabric webs inside the membrane hull on the static response of spindle-shaped Tensairity columns to axial compression. Two full-scale spindle-shaped columns, one without and one with webs, were fabricated and tested. The columns were subjected to axial compressive loading for various levels of internal air pressure to quantify its effect on the global structural response. It was found that the stiffness and the load bearing capacity for both columns increased with increasing air pressure. The experimental results also revealed the benefits of including fabric webs in the spindle configuration in terms of axial stiffness and buckling load. Comparisons with an analytical solution and finite-element predictions showed good correlation for the axial stiffness in the case without webs. For the case with web deviations between predicted and experimental results indicated that structural detailing and imperfections in the manufacturing process strongly influence the performance of Tensairity columns with internal webs. DEWEY : 624.17 ISSN : 0733-9445 En ligne : http://ascelibrary.org/sto/resource/1/jsendh/v136/i4/p410_s1?isAuthorized=no