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Détail de l'auteur
Auteur Tsai, Keh-Chyuan
Documents disponibles écrits par cet auteur
Affiner la rechercheISEE: Internet-based Simulation for Earthquake Engineering - Part II: The application protocol approach / Kung-Juin Wang in Earthquake engineering structural dynamics, Vol. 36 N°15 (Decembre 2007)
[article]
in Earthquake engineering structural dynamics > Vol. 36 N°15 (Decembre 2007) . - 2307-2323 p.
Titre : ISEE: Internet-based Simulation for Earthquake Engineering - Part II: The application protocol approach Type de document : texte imprimé Auteurs : Kung-Juin Wang, Auteur ; Shiang-Jung Wang, Auteur ; Tsai, Keh-Chyuan, Auteur ; Wei-Choung Cheng, Auteur Article en page(s) : 2307-2323 p. Note générale : Génie Civil Langues : Anglais (eng) Mots-clés : internet hybrid testing ISEE pseudo-dynamic TCP/IP application protocol Essais hybrides pseudo-dynamique protocole d'application Résumé : This paper develops new techniques for integrating a number of different structural laboratories together through the Internet in order to jointly conduct a single structural experiment. A computer-networking platform, called Platform for Networked Structural Experiments (PNSE), was developed to achieve this goal. PNSE runs directly on top of the Transmission Control Protocol/Internet Protocol (TCP/IP). It is a multi-client system consisting of a number of client programs, which include one command generation program and a number of facility control programs, connected to a server program via TCP point-to-point connections across the Internet. An associated application protocol, called Networked Structural Experiment Protocol (NSEP), was developed to work with the PNSE. In addition to communication rules, the NSEP defines general experimental information, significant laboratory events, commands and signals, as well as obligated behaviours of all PNSE programs. Both domestic and transnational pseudo-dynamic (PSD) tests were performed to verify the validity and efficiency of the PNSE. Test results showed that on the PNSE: signals were correctly transmitted; significant laboratory events were promptly reflected; and data transmission was remarkably efficient, with the round-trip time (RTT) between Taiwan and the United States less than 0.1701 s. The characteristic of environment independency was also demonstrated through the successful collaboration of different facility control programs running on different operating systems.
Cette étude met au point de nouvelles techniques pour intégrer un certain nombre de différents laboratoires structurel ensemble grâce à l'Internet, afin de mener conjointement une seule structure expérience. Une plate-forme de réseaux informatiques, appelée Platform for Networked Experiments structurels (PNSE), a été élaboré pour réaliser cet objectif. PNSE tourne directement sur le dessus de la Transmission Control Protocol / Internet Protocol (TCP / IP). C'est un multi-clients un système composé d'un certain nombre de programmes clients, qui incluent un programme de génération de commandement et un certain nombre de programmes de contrôle des installations, relié à un logiciel serveur via TCP point-à-point connexions à travers l'Internet. Un protocole d'application associé, appelé Networked structurels Expérimentale Protocole (NSEP), a été conçu pour travailler avec le PNSE. En plus des règles de communication, définit les NSEP expérimentaux d'information générale, d'importantes manifestations de laboratoire, de commandes et de signaux, ainsi que l'obligation de tous les comportements PNSE programmes. Nationales et transnationales pseudo-dynamique (PSD) des essais ont été effectués afin de vérifier la validité et l'efficacité du PNSE. Les résultats des tests ont montré que sur le PNSE: les signaux sont transmis correctement; laboratoire événements significatifs ont été rapidement traduit, et la transmission de données a été remarquablement efficace, avec l'aller-retour du temps (RTT) entre Taiwan et les États-Unis à moins de 0,1701 s. La caractéristique de l'environnement de l'indépendance a également été démontré par la réussite de la collaboration de différents programmes de contrôle des installations fonctionnant sur différents systèmes d'exploitationDEWEY : 551.2 ISSN : 0098-8847 RAMEAU : Génie parasismique En ligne : http://www3.interscience.wiley.com/cgi-bin/abstract/114283523/ABSTRACT [article] ISEE: Internet-based Simulation for Earthquake Engineering - Part II: The application protocol approach [texte imprimé] / Kung-Juin Wang, Auteur ; Shiang-Jung Wang, Auteur ; Tsai, Keh-Chyuan, Auteur ; Wei-Choung Cheng, Auteur . - 2307-2323 p.
Génie Civil
Langues : Anglais (eng)
in Earthquake engineering structural dynamics > Vol. 36 N°15 (Decembre 2007) . - 2307-2323 p.
Mots-clés : internet hybrid testing ISEE pseudo-dynamic TCP/IP application protocol Essais hybrides pseudo-dynamique protocole d'application Résumé : This paper develops new techniques for integrating a number of different structural laboratories together through the Internet in order to jointly conduct a single structural experiment. A computer-networking platform, called Platform for Networked Structural Experiments (PNSE), was developed to achieve this goal. PNSE runs directly on top of the Transmission Control Protocol/Internet Protocol (TCP/IP). It is a multi-client system consisting of a number of client programs, which include one command generation program and a number of facility control programs, connected to a server program via TCP point-to-point connections across the Internet. An associated application protocol, called Networked Structural Experiment Protocol (NSEP), was developed to work with the PNSE. In addition to communication rules, the NSEP defines general experimental information, significant laboratory events, commands and signals, as well as obligated behaviours of all PNSE programs. Both domestic and transnational pseudo-dynamic (PSD) tests were performed to verify the validity and efficiency of the PNSE. Test results showed that on the PNSE: signals were correctly transmitted; significant laboratory events were promptly reflected; and data transmission was remarkably efficient, with the round-trip time (RTT) between Taiwan and the United States less than 0.1701 s. The characteristic of environment independency was also demonstrated through the successful collaboration of different facility control programs running on different operating systems.
Cette étude met au point de nouvelles techniques pour intégrer un certain nombre de différents laboratoires structurel ensemble grâce à l'Internet, afin de mener conjointement une seule structure expérience. Une plate-forme de réseaux informatiques, appelée Platform for Networked Experiments structurels (PNSE), a été élaboré pour réaliser cet objectif. PNSE tourne directement sur le dessus de la Transmission Control Protocol / Internet Protocol (TCP / IP). C'est un multi-clients un système composé d'un certain nombre de programmes clients, qui incluent un programme de génération de commandement et un certain nombre de programmes de contrôle des installations, relié à un logiciel serveur via TCP point-à-point connexions à travers l'Internet. Un protocole d'application associé, appelé Networked structurels Expérimentale Protocole (NSEP), a été conçu pour travailler avec le PNSE. En plus des règles de communication, définit les NSEP expérimentaux d'information générale, d'importantes manifestations de laboratoire, de commandes et de signaux, ainsi que l'obligation de tous les comportements PNSE programmes. Nationales et transnationales pseudo-dynamique (PSD) des essais ont été effectués afin de vérifier la validité et l'efficacité du PNSE. Les résultats des tests ont montré que sur le PNSE: les signaux sont transmis correctement; laboratoire événements significatifs ont été rapidement traduit, et la transmission de données a été remarquablement efficace, avec l'aller-retour du temps (RTT) entre Taiwan et les États-Unis à moins de 0,1701 s. La caractéristique de l'environnement de l'indépendance a également été démontré par la réussite de la collaboration de différents programmes de contrôle des installations fonctionnant sur différents systèmes d'exploitationDEWEY : 551.2 ISSN : 0098-8847 RAMEAU : Génie parasismique En ligne : http://www3.interscience.wiley.com/cgi-bin/abstract/114283523/ABSTRACT Seismic analysis of two-way asymmetric building systems under bi-directional seismic ground motions / Lin, Jui-Liang in Earthquake engineering structural dynamics, Vol. 37 N°2 (Fevrier 2008)
[article]
in Earthquake engineering structural dynamics > Vol. 37 N°2 (Fevrier 2008) . - 305 - 328 p.
Titre : Seismic analysis of two-way asymmetric building systems under bi-directional seismic ground motions Type de document : texte imprimé Auteurs : Lin, Jui-Liang, Auteur ; Tsai, Keh-Chyuan, Auteur Article en page(s) : 305 - 328 p. Note générale : Génie civil Langues : Anglais (eng) Mots-clés : Asymmetric building Modal analysis Modal stick Torsional effect Bi-directional ground motions Eccentricity Bâtiment asymétrique Analyse modale Bâton modal Effet de torsion Mouvements au sol bi-directionnels Excentricité Index. décimale : 624.151 Résumé : An approximation approach of seismic analysis of two-way asymmetric building systems under bi-directional seismic ground motions is proposed. The procedures of uncoupled modal response history analysis (UMRHA) are extended to two-way asymmetric buildings simultaneously excited by two horizontal components of ground motion. Constructing the relationships of two-way base shears versus two-way roof translations and base torque versus roof rotation in ADRS format for a two-way asymmetric building, each modal pushover curve bifurcates into three curves in an inelastic state. A three-degree-of-freedom (3DOF) modal stick is developed to simulate the modal pushover curve with the stated bifurcating characteristic. It requires the calculation of the synthetic earthquake and angle . It is confirmed that the 3DOF modal stick is consistent with single-degree-of-freedom modal stick in an elastic state. A two-way asymmetric three-story building was analyzed by UMRHA procedure incorporating the proposed 3DOF modal sticks. The analytical results are compared with those obtained from nonlinear response history analysis. It is shown that the 3DOF modal sticks are more rational and effective in dealing with the assessment of two-way asymmetric building systems under two-directional seismic ground motions.
On propose une approche d'approximation de l'analyse séismique des systèmes asymétriques bi-directionnels de bâtiment sous des mouvements au sol séismiques bi-directionnels. Les procédures de l'analyse modale désaccouplée d'histoire de réponse (UMRHA) sont prolongées aux bâtiments asymétriques bi-directionnels simultanément passionnants par deux composants horizontaux de mouvement au sol. En construisant les rapports avec des cisaillements bas bi-directionnels contre des traductions bi-directionnelles de toit et du couple bas contre la rotation de toit dans ADRS composé pour un bâtiment asymétrique bi-directionnel, chaque courbe modale de facilité bifurque dans trois courbes dans un état non élastique. Un bâton modal de la trois-degré-de-liberté (3DOF) est développé pour simuler la courbe modale de facilité avec la caractéristique de bifurcation indiquée. Il exige le calcul du tremblement de terre et de l'angle synthétiques. On le confirme que le bâton 3DOF modal est conformé au bâton modal de simple-degré-de-liberté dans un état élastique. Un bâtiment asymétrique bi-directionnel d'trois-histoire a été analysé par le procédé d'UMRHA incorporant les bâtons 3DOF modaux proposés. Les résultats analytiques sont comparés à ceux obtenus à partir de l'analyse non-linéaire d'histoire de réponse. On lui montre que les bâtons 3DOF modaux sont plus raisonnables et efficaces en faisant face à l'évaluation des systèmes asymétriques bi-directionnels de bâtiment sous des mouvements au sol séismiques deux-directionnels.DEWEY : 551.2 ISSN : 0098-8847 RAMEAU : Vibrations -- Analyse modale En ligne : http://www3.interscience.wiley.com/journal [article] Seismic analysis of two-way asymmetric building systems under bi-directional seismic ground motions [texte imprimé] / Lin, Jui-Liang, Auteur ; Tsai, Keh-Chyuan, Auteur . - 305 - 328 p.
Génie civil
Langues : Anglais (eng)
in Earthquake engineering structural dynamics > Vol. 37 N°2 (Fevrier 2008) . - 305 - 328 p.
Mots-clés : Asymmetric building Modal analysis Modal stick Torsional effect Bi-directional ground motions Eccentricity Bâtiment asymétrique Analyse modale Bâton modal Effet de torsion Mouvements au sol bi-directionnels Excentricité Index. décimale : 624.151 Résumé : An approximation approach of seismic analysis of two-way asymmetric building systems under bi-directional seismic ground motions is proposed. The procedures of uncoupled modal response history analysis (UMRHA) are extended to two-way asymmetric buildings simultaneously excited by two horizontal components of ground motion. Constructing the relationships of two-way base shears versus two-way roof translations and base torque versus roof rotation in ADRS format for a two-way asymmetric building, each modal pushover curve bifurcates into three curves in an inelastic state. A three-degree-of-freedom (3DOF) modal stick is developed to simulate the modal pushover curve with the stated bifurcating characteristic. It requires the calculation of the synthetic earthquake and angle . It is confirmed that the 3DOF modal stick is consistent with single-degree-of-freedom modal stick in an elastic state. A two-way asymmetric three-story building was analyzed by UMRHA procedure incorporating the proposed 3DOF modal sticks. The analytical results are compared with those obtained from nonlinear response history analysis. It is shown that the 3DOF modal sticks are more rational and effective in dealing with the assessment of two-way asymmetric building systems under two-directional seismic ground motions.
On propose une approche d'approximation de l'analyse séismique des systèmes asymétriques bi-directionnels de bâtiment sous des mouvements au sol séismiques bi-directionnels. Les procédures de l'analyse modale désaccouplée d'histoire de réponse (UMRHA) sont prolongées aux bâtiments asymétriques bi-directionnels simultanément passionnants par deux composants horizontaux de mouvement au sol. En construisant les rapports avec des cisaillements bas bi-directionnels contre des traductions bi-directionnelles de toit et du couple bas contre la rotation de toit dans ADRS composé pour un bâtiment asymétrique bi-directionnel, chaque courbe modale de facilité bifurque dans trois courbes dans un état non élastique. Un bâton modal de la trois-degré-de-liberté (3DOF) est développé pour simuler la courbe modale de facilité avec la caractéristique de bifurcation indiquée. Il exige le calcul du tremblement de terre et de l'angle synthétiques. On le confirme que le bâton 3DOF modal est conformé au bâton modal de simple-degré-de-liberté dans un état élastique. Un bâtiment asymétrique bi-directionnel d'trois-histoire a été analysé par le procédé d'UMRHA incorporant les bâtons 3DOF modaux proposés. Les résultats analytiques sont comparés à ceux obtenus à partir de l'analyse non-linéaire d'histoire de réponse. On lui montre que les bâtons 3DOF modaux sont plus raisonnables et efficaces en faisant face à l'évaluation des systèmes asymétriques bi-directionnels de bâtiment sous des mouvements au sol séismiques deux-directionnels.DEWEY : 551.2 ISSN : 0098-8847 RAMEAU : Vibrations -- Analyse modale En ligne : http://www3.interscience.wiley.com/journal Seismic performance evaluation of a 34-story steel building retrofitted with response modification elements / Yuan-Tao Weng in Earthquake engineering structural dynamics, Vol. 38 N° 6 (Mai 2009)
[article]
in Earthquake engineering structural dynamics > Vol. 38 N° 6 (Mai 2009) . - pp. 759-781
Titre : Seismic performance evaluation of a 34-story steel building retrofitted with response modification elements Type de document : texte imprimé Auteurs : Yuan-Tao Weng, Auteur ; Tsai, Keh-Chyuan, Auteur ; Pei-Ching Chen, Auteur Article en page(s) : pp. 759-781 Note générale : Génie Civil Langues : Anglais (eng) Mots-clés : seismic retrofit; BRB; EBF; welded moment connection; nonlinear analysis; ground motion scaling method Index. décimale : 624.1 Infrastructures.Ouvrages en terre. Fondations. Tunnels Résumé : The original structural design of this case study consisted of five basement floors and a 34-story hotel tower in Kaohsiung, Taiwan. The construction started in 1993, and the erection of the entire steel frame and the pouring of concrete slabs up to the 26th floor were completed before 1996. However, construction of the original hotel was subsequently suspended for 10 years. Recently, this building has been retrofitted for residential purposes. Buckling restrained braces (BRBs) and eccentrically braced frames were incorporated into the seismic design of the new residential tower. This paper presents the seismic resisting structural system, seismic design criteria, full-scale test results of one BRB member and the as-built welded moment connections. Test results confirm that the two side web-plate stiffening details can effectively improve the rotational capacity of welded moment connection. The paper also discusses the analytical models for simulating the experimental responses of the BRB members and the welded moment connections. Nonlinear response history analyses (NLRHA) indicate that the inelastic deformational demands of the original and the redesigned structures induced by the maximum considered earthquakes are less than those found in the seismic building codes or laboratory tests. This paper also proposes a ground motion scaling method considering multi-mode effects for NLRHA of the example building. It is shown that the proposed scaling method worked well in reducing the scatter in estimated peak seismic demands. ISSN : 0098-8847 En ligne : http://www3.interscience.wiley.com/journal/121520031/abstract [article] Seismic performance evaluation of a 34-story steel building retrofitted with response modification elements [texte imprimé] / Yuan-Tao Weng, Auteur ; Tsai, Keh-Chyuan, Auteur ; Pei-Ching Chen, Auteur . - pp. 759-781.
Génie Civil
Langues : Anglais (eng)
in Earthquake engineering structural dynamics > Vol. 38 N° 6 (Mai 2009) . - pp. 759-781
Mots-clés : seismic retrofit; BRB; EBF; welded moment connection; nonlinear analysis; ground motion scaling method Index. décimale : 624.1 Infrastructures.Ouvrages en terre. Fondations. Tunnels Résumé : The original structural design of this case study consisted of five basement floors and a 34-story hotel tower in Kaohsiung, Taiwan. The construction started in 1993, and the erection of the entire steel frame and the pouring of concrete slabs up to the 26th floor were completed before 1996. However, construction of the original hotel was subsequently suspended for 10 years. Recently, this building has been retrofitted for residential purposes. Buckling restrained braces (BRBs) and eccentrically braced frames were incorporated into the seismic design of the new residential tower. This paper presents the seismic resisting structural system, seismic design criteria, full-scale test results of one BRB member and the as-built welded moment connections. Test results confirm that the two side web-plate stiffening details can effectively improve the rotational capacity of welded moment connection. The paper also discusses the analytical models for simulating the experimental responses of the BRB members and the welded moment connections. Nonlinear response history analyses (NLRHA) indicate that the inelastic deformational demands of the original and the redesigned structures induced by the maximum considered earthquakes are less than those found in the seismic building codes or laboratory tests. This paper also proposes a ground motion scaling method considering multi-mode effects for NLRHA of the example building. It is shown that the proposed scaling method worked well in reducing the scatter in estimated peak seismic demands. ISSN : 0098-8847 En ligne : http://www3.interscience.wiley.com/journal/121520031/abstract Self-centering steel connections with steel bars and a discontinuous composite slab / Chung-Che Chou in Earthquake engineering structural dynamics, Vol. 38 N°4 (Avril 2009)
[article]
in Earthquake engineering structural dynamics > Vol. 38 N°4 (Avril 2009) . - pp. 403-422
Titre : Self-centering steel connections with steel bars and a discontinuous composite slab Type de document : texte imprimé Auteurs : Chung-Che Chou, Auteur ; Tsai, Keh-Chyuan, Auteur ; Cheng, Ming-Yang, Auteur Article en page(s) : pp. 403-422 Note générale : Génie Civil Langues : Anglais (eng) Mots-clés : Post-tensioned steel connection; Strands; Energy-dissipating bar; Composite slab Index. décimale : 624.1 Infrastructures.Ouvrages en terre. Fondations. Tunnels Résumé : Six cyclic tests were conducted on three full-scale subassemblies to investigate the behavior of interior beam-to-column post-tensioned (PT) connections. Strands were placed along each side of the steel beam web, passing through the steel column to provide precompression between the beams and a column. Top and bottom energy-dissipating (ED) bars, passing through the column and welded to the beam, were used to increase the moment capacity and ED capacity of the connection. One of the subassemblies also had a composite concrete slab with discontinuity at the column centerline to eliminate restraint from the metal deck, reinforcement, and welded wire mesh. The objectives of this paper were to investigate the following: the durability of the connection by loading each specimen twice, the ED capacity of the ED bar, and the effects that the type of ED bar and type of composite slab have on the self-centering behavior of the connection. The experimental results showed that: (1) the connection could sustain severe inelastic cyclic loading at least twice without strength degradation, (2) the ED capacity of the bar was much larger than that dissipated by a single AISC loading protocol, and (3) a specimen with a discontinuous composite slab, which opened freely at the centerline of the column, ensured the same self-centering hysteretic behavior as the bare steel specimen. However, the decompression moment of the PT connection decreased significantly at each interstory drift, resulting in an early opening of a gap at the beam-column interface. ISSN : 0098-8847 En ligne : http://www3.interscience.wiley.com/journal/121411419/abstract [article] Self-centering steel connections with steel bars and a discontinuous composite slab [texte imprimé] / Chung-Che Chou, Auteur ; Tsai, Keh-Chyuan, Auteur ; Cheng, Ming-Yang, Auteur . - pp. 403-422.
Génie Civil
Langues : Anglais (eng)
in Earthquake engineering structural dynamics > Vol. 38 N°4 (Avril 2009) . - pp. 403-422
Mots-clés : Post-tensioned steel connection; Strands; Energy-dissipating bar; Composite slab Index. décimale : 624.1 Infrastructures.Ouvrages en terre. Fondations. Tunnels Résumé : Six cyclic tests were conducted on three full-scale subassemblies to investigate the behavior of interior beam-to-column post-tensioned (PT) connections. Strands were placed along each side of the steel beam web, passing through the steel column to provide precompression between the beams and a column. Top and bottom energy-dissipating (ED) bars, passing through the column and welded to the beam, were used to increase the moment capacity and ED capacity of the connection. One of the subassemblies also had a composite concrete slab with discontinuity at the column centerline to eliminate restraint from the metal deck, reinforcement, and welded wire mesh. The objectives of this paper were to investigate the following: the durability of the connection by loading each specimen twice, the ED capacity of the ED bar, and the effects that the type of ED bar and type of composite slab have on the self-centering behavior of the connection. The experimental results showed that: (1) the connection could sustain severe inelastic cyclic loading at least twice without strength degradation, (2) the ED capacity of the bar was much larger than that dissipated by a single AISC loading protocol, and (3) a specimen with a discontinuous composite slab, which opened freely at the centerline of the column, ensured the same self-centering hysteretic behavior as the bare steel specimen. However, the decompression moment of the PT connection decreased significantly at each interstory drift, resulting in an early opening of a gap at the beam-column interface. ISSN : 0098-8847 En ligne : http://www3.interscience.wiley.com/journal/121411419/abstract