Capacity design and seismic performance of multi-storey precast structures / Fabio Biondini in European journal of environmental and civil engineering, Vol. 14 N° 1 (Janvier 2010)  

Public ISBD [article]  inEuropean journal of environmental and civil engineering > Vol. 14 N° 1 (Janvier 2010) . - pp. 11-28 Titre : Capacity design and seismic performance of multi-storey precast structures Type de document : texte imprimé Auteurs : Fabio Biondini, Auteur ; Giandomenico Toniolo, Auteur ; Georgios Tsionis, Auteur Année de publication : 2010 Article en page(s) : pp. 11-28 Note générale : Génie Civil Langues : Anglais (eng) Mots-clés : Precast structures Capacity design Behaviour factor Seismic performance Index. décimale : 624 Constructions du génie civil et du bâtiment. Infrastructures. Ouvrages en terres. Fondations. Tunnels. Ponts et charpentes Résumé : The seismic design of multi-storey precast structures is at present not covered by specific provisions of the European seismic codes. To fill such gap, capacity design criteria for multi-storey precast concrete frames with hinged beams are presented. Based on the same approach prescribed by the codes for monolithic cast-in-place frames, a distribution of floor forces and a value of behaviour factor are assumed to perform a static linear analysis of the structure. A parametric study aimed to validate the design method is carried out by varying, within the range of practical interest, the main design parameters such as the number of storeys, the mass-over-stiffness ratios and the stiffness characteristics of the columns. The results of dynamic modal analyses and non linear static analyses show that the proposed method can safely be applied to ordinary multi-storey concrete precast frames characterized by structural regularity and limited flexibility. DEWEY : 624 ISSN : 1964-8189 En ligne : http://ejece.revuesonline.com/resnum.jsp [article] Capacity design and seismic performance of multi-storey precast structures [texte imprimé] / Fabio Biondini, Auteur ; Giandomenico Toniolo, Auteur ; Georgios Tsionis, Auteur . - 2010 . - pp. 11-28. Génie Civil Langues : Anglais (eng) in European journal of environmental and civil engineering > Vol. 14 N° 1 (Janvier 2010) . - pp. 11-28 Mots-clés : Precast structures Capacity design Behaviour factor Seismic performance Index. décimale : 624 Constructions du génie civil et du bâtiment. Infrastructures. Ouvrages en terres. Fondations. Tunnels. Ponts et charpentes Résumé : The seismic design of multi-storey precast structures is at present not covered by specific provisions of the European seismic codes. To fill such gap, capacity design criteria for multi-storey precast concrete frames with hinged beams are presented. Based on the same approach prescribed by the codes for monolithic cast-in-place frames, a distribution of floor forces and a value of behaviour factor are assumed to perform a static linear analysis of the structure. A parametric study aimed to validate the design method is carried out by varying, within the range of practical interest, the main design parameters such as the number of storeys, the mass-over-stiffness ratios and the stiffness characteristics of the columns. The results of dynamic modal analyses and non linear static analyses show that the proposed method can safely be applied to ordinary multi-storey concrete precast frames characterized by structural regularity and limited flexibility. DEWEY : 624 ISSN : 1964-8189 En ligne : http://ejece.revuesonline.com/resnum.jsp

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Cellular finite beam element for nonlinear analysis of concrete structures under fire / Fabio Biondini in Journal of structural engineering, Vol. 137 N° 5 (Mai 2011)  

Public ISBD [article]  inJournal of structural engineering > Vol. 137 N° 5 (Mai 2011) . - pp. 543-558 Titre : Cellular finite beam element for nonlinear analysis of concrete structures under fire Type de document : texte imprimé Auteurs : Fabio Biondini, Auteur ; Andrea Nero, Auteur Année de publication : 2011 Article en page(s) : pp. 543-558 Note générale : Génie Civil Langues : Anglais (eng) Mots-clés : Concrete structures Finite element method Fire resistance Heat transfer Nonlinear analysis Index. décimale : 624 Constructions du génie civil et du bâtiment. Infrastructures. Ouvrages en terres. Fondations. Tunnels. Ponts et charpentes Résumé : A novel approach to nonlinear finite-element analysis of concrete structures exposed to fire is presented. The proposed formulation refers to frame systems, but it can be extended to other types of structures. The main novelty of this formulation is the use of a special class of evolutionary algorithms, known as cellular automata, to describe the heat transfer process induced by fire and to create an effective link between the simulation of the thermal process and the structural analysis. The heat transfer process is reproduced by considering heat conduction, heat convection, and thermal radiation. The temperature effects on the structural performance are taken into account by means of temperature-dependent thermal and mechanical properties of concrete and steel. In this way, the general criteria for nonlinear finite-element analysis of concrete structures are applied to formulate a cellular reinforced concrete beam element with temperature-dependent characteristics. The effectiveness and applicability in engineering practice of the proposed formulation is demonstrated through applications. The results prove the accuracy of the proposed procedure and show that, for statically indeterminate structures, fire safety needs to be evaluated at the global level by taking into account the actual role played by the structural scheme. DEWEY : 624 ISSN : 1090-0241 En ligne : http://ascelibrary.org/sto/resource/1/jsendh/v137/i5/p543_s1?isAuthorized=no [article] Cellular finite beam element for nonlinear analysis of concrete structures under fire [texte imprimé] / Fabio Biondini, Auteur ; Andrea Nero, Auteur . - 2011 . - pp. 543-558. Génie Civil Langues : Anglais (eng) in Journal of structural engineering > Vol. 137 N° 5 (Mai 2011) . - pp. 543-558 Mots-clés : Concrete structures Finite element method Fire resistance Heat transfer Nonlinear analysis Index. décimale : 624 Constructions du génie civil et du bâtiment. Infrastructures. Ouvrages en terres. Fondations. Tunnels. Ponts et charpentes Résumé : A novel approach to nonlinear finite-element analysis of concrete structures exposed to fire is presented. The proposed formulation refers to frame systems, but it can be extended to other types of structures. The main novelty of this formulation is the use of a special class of evolutionary algorithms, known as cellular automata, to describe the heat transfer process induced by fire and to create an effective link between the simulation of the thermal process and the structural analysis. The heat transfer process is reproduced by considering heat conduction, heat convection, and thermal radiation. The temperature effects on the structural performance are taken into account by means of temperature-dependent thermal and mechanical properties of concrete and steel. In this way, the general criteria for nonlinear finite-element analysis of concrete structures are applied to formulate a cellular reinforced concrete beam element with temperature-dependent characteristics. The effectiveness and applicability in engineering practice of the proposed formulation is demonstrated through applications. The results prove the accuracy of the proposed procedure and show that, for statically indeterminate structures, fire safety needs to be evaluated at the global level by taking into account the actual role played by the structural scheme. DEWEY : 624 ISSN : 1090-0241 En ligne : http://ascelibrary.org/sto/resource/1/jsendh/v137/i5/p543_s1?isAuthorized=no

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