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Modular high-force seismic magneto-rheological fluid damper / F. Gordaninejad in Journal of structural engineering, Vol. 136 N° 2 (Fevrier 2010) 

Public ISBD [article]  in Journal of structural engineering > Vol. 136 N° 2 (Fevrier 2010) . - pp. 135-143 Titre : Modular high-force seismic magneto-rheological fluid damper Type de document : texte imprimé Auteurs : F. Gordaninejad, Auteur ; X. Wang, Auteur ; G. Hitchcock, Auteur Année de publication : 2011 Article en page(s) : pp. 135-143 Note générale : Génie Civil Langues : Anglais (eng) Mots-clés : Damping  Seismic  effects  Rheology  Vibration  Structural  control Index. décimale : 624 Constructions du génie civil et du bâtiment. Infrastructures. Ouvrages en terres. Fondations. Tunnels. Ponts et charpentes Résumé : In this work, a large-scale magneto-rheological fluid (MRF) bypass valve damper for seismic mitigation applications is designed, constructed, and tested. The damper utilizes a simple design, with a modular bypass MRF valve, connected to a passive commercial seismic damper. The modular feature of the new MRF valve provides the flexibility of adding as much force as needed to the damper with minimal modification to an existing passive viscous damper. The performance of the MRF valve and the combined semiactive bypass MRF damper are examined through quasi-static and dynamic tests. It is demonstrated that the proposed modular MRF bypass damper can provide a maximum damping force over 200 kN which meets the high-force requirements of a semiactive seismic damper for large-scale structure vibration control. DEWEY : 624.17 ISSN : 0733-9445 En ligne : http://ascelibrary.org/sto/resource/1/jsendh/v136/i2/p135_s1?isAuthorized=no [article] Modular high-force seismic magneto-rheological fluid damper [texte imprimé] / F. Gordaninejad, Auteur ; X. Wang, Auteur ; G. Hitchcock, Auteur . - 2011 . - pp. 135-143. Génie Civil Langues : Anglais (eng) in Journal of structural engineering > Vol. 136 N° 2 (Fevrier 2010) . - pp. 135-143 Mots-clés : Damping  Seismic  effects  Rheology  Vibration  Structural  control Index. décimale : 624 Constructions du génie civil et du bâtiment. Infrastructures. Ouvrages en terres. Fondations. Tunnels. Ponts et charpentes Résumé : In this work, a large-scale magneto-rheological fluid (MRF) bypass valve damper for seismic mitigation applications is designed, constructed, and tested. The damper utilizes a simple design, with a modular bypass MRF valve, connected to a passive commercial seismic damper. The modular feature of the new MRF valve provides the flexibility of adding as much force as needed to the damper with minimal modification to an existing passive viscous damper. The performance of the MRF valve and the combined semiactive bypass MRF damper are examined through quasi-static and dynamic tests. It is demonstrated that the proposed modular MRF bypass damper can provide a maximum damping force over 200 kN which meets the high-force requirements of a semiactive seismic damper for large-scale structure vibration control. DEWEY : 624.17 ISSN : 0733-9445 En ligne : http://ascelibrary.org/sto/resource/1/jsendh/v136/i2/p135_s1?isAuthorized=no