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Behaviour of Large-Panel Connections
This article briefly summarises experiments, including very recent work, at the NTU in Athens, on the connections of large precast reinforced concrete panels when subjected to monotonic, repetitive-dynamic and cyclic shearing actions. Conclusions as to the seismic behaviour of such connections are also presented. For monotonic loading, a theoretical model for predicting ultimate bearing capacity of the connections is shown schematically, accompanied by a design formula. The relevant behaviour under repetitive-dynamic loading is represented by a 'fatigue curve'. For rational seismic design of the connections, experimental data show cyclic-strain reactions, such as shear-force response, shear-stiffness degradation, hysteretic damping, ultimate (static) bearing capacity and residual strength. These lead to a proposed approximate behavioural model for possible use in computer analyses of composite walls, and to design values (together with degradation factors) for estimating the bearing capacity of vertical and horizontal keyed joints under seismic conditions. Cet article resume brievement des experiences dont certaines tres recentes, realisees au NTU d'Athenes, sur les connexions de grands panneaux prefabriques en beton arme soumis a des actions de cisaillement uniformes, dynamiques et repetitives, ou cycliques. Il avance egalement des conclusions sur le comportement de ces connexions en cas de seisme. En ce qui concerne le chargement uniforme, les auteurs donnent un modele theorique permettant de prevoir la capacite porteuse maximale de connexions, ainsi que des formules de calcul. Le comportement correspondant sous chargement dynamique repetitif est represente par une « courbe de fatigue». Pour le calcul rationnel des connexions en cas de seisme, des donnees experimentales montrent les reactions cycliques de deformation telles que reactions aux forces de cisaillement, degradation de la rigidite au cisaillement, amortissement par hysteresis, capacite porteuse (statique) maximale et resistance residuelle. Ce travail a abouti a un modele approche de comportement susceptible de servir pour des analyses sur ordinateur de murs composites et a des valeurs de calcul (avec des coefficients de degradation) pour l'estimation de la capacite porteuse des joints a cle de serrage verticaux et horizontaux soumis a des charges sismiques.
Behaviour of Large-Panel Connections
This article briefly summarises experiments, including very recent work, at the NTU in Athens, on the connections of large precast reinforced concrete panels when subjected to monotonic, repetitive-dynamic and cyclic shearing actions. Conclusions as to the seismic behaviour of such connections are also presented. For monotonic loading, a theoretical model for predicting ultimate bearing capacity of the connections is shown schematically, accompanied by a design formula. The relevant behaviour under repetitive-dynamic loading is represented by a 'fatigue curve'. For rational seismic design of the connections, experimental data show cyclic-strain reactions, such as shear-force response, shear-stiffness degradation, hysteretic damping, ultimate (static) bearing capacity and residual strength. These lead to a proposed approximate behavioural model for possible use in computer analyses of composite walls, and to design values (together with degradation factors) for estimating the bearing capacity of vertical and horizontal keyed joints under seismic conditions. Cet article resume brievement des experiences dont certaines tres recentes, realisees au NTU d'Athenes, sur les connexions de grands panneaux prefabriques en beton arme soumis a des actions de cisaillement uniformes, dynamiques et repetitives, ou cycliques. Il avance egalement des conclusions sur le comportement de ces connexions en cas de seisme. En ce qui concerne le chargement uniforme, les auteurs donnent un modele theorique permettant de prevoir la capacite porteuse maximale de connexions, ainsi que des formules de calcul. Le comportement correspondant sous chargement dynamique repetitif est represente par une « courbe de fatigue». Pour le calcul rationnel des connexions en cas de seisme, des donnees experimentales montrent les reactions cycliques de deformation telles que reactions aux forces de cisaillement, degradation de la rigidite au cisaillement, amortissement par hysteresis, capacite porteuse (statique) maximale et resistance residuelle. Ce travail a abouti a un modele approche de comportement susceptible de servir pour des analyses sur ordinateur de murs composites et a des valeurs de calcul (avec des coefficients de degradation) pour l'estimation de la capacite porteuse des joints a cle de serrage verticaux et horizontaux soumis a des charges sismiques.
Behaviour of Large-Panel Connections
Tassios, T. P. (author) / Tsoukantas, S. G. (author)
Building Research & Information ; 11 ; 226-232
1983-08-01
7 pages
Article (Journal)
Electronic Resource
English
Behaviour of Large-Panel Connections
| Taylor & Francis Verlag | 1983
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