Feed-forward control of active variable stiffness systems for mitigating seismic hazard in structures

dc.contributor.author	Πνευματικός, Νικόλαος Γ.	el
dc.contributor.author	Καλλιβώκας, Λουκάς Φ.	el
dc.contributor.author	Γαντές, Χάρης Ι.	el
dc.date.accessioned	2015-06-07T06:45:50Z
dc.date.available	2015-06-07T06:45:50Z
dc.date.issued	2015-06-07
dc.identifier.uri	http://hdl.handle.net/11400/15387
dc.rights	Αναφορά Δημιουργού-Μη Εμπορική Χρήση-Όχι Παράγωγα Έργα 3.0 Ηνωμένες Πολιτείες	*
dc.rights.uri	http://creativecommons.org/licenses/by-nc-nd/3.0/us/	*
dc.source	http://www.sciencedirect.com/science/article/pii/S0141029603002773#	el
dc.subject	Early warning system
dc.subject	Active seismic control
dc.subject	Ενεργός σεισμικός έλεγχος
dc.subject	Bracing systems
dc.subject	Συστήματα αντιστήριξης
dc.subject	Συστήματα έγκαιρης προειδοποίησης
dc.subject	Resonance control
dc.subject	Έλεγχος συντονισμού
dc.subject	Variable stiffness system
dc.subject	Μεταβλητό σύστημα δυσκαμψίας
dc.title	Feed-forward control of active variable stiffness systems for mitigating seismic hazard in structures	en
heal.type	journalArticle
heal.classification	Civil engineering
heal.classification	Seismology
heal.classification	Πολιτική μηχανική
heal.classification	Σεισμολογία
heal.classificationURI	http://skos.um.es/unescothes/C00606
heal.classificationURI	http://skos.um.es/unescothes/C03592
heal.classificationURI	N/A-Πολιτική μηχανική
heal.classificationURI	N/A-Σεισμολογία
heal.keywordURI	http://zbw.eu/stw/descriptor/12166-6
heal.identifier.secondary	doi:10.1016/j.engstruct.2003.11.003
heal.language	en
heal.access	campus
heal.recordProvider	Τ.Ε.Ι. Αθήνας. Σχολή Τεχνολογικών Εφαρμογών. Τμήμα Πολιτικών Μηχανικών Τ.Ε και Μηχανικών Τοπογραφίας & Γεωπληροφορικής Τ.Ε.	el
heal.publicationDate	2004-03
heal.bibliographicCitation	Pnevmatikos, N., Kallivokas, L. and Gantes, C. (2004). Feed-forward control of active variable stiffness systems for mitigating seismic hazard in structures . "Engineering Structures", 26(4), March 2004. pp. 471-483. Available from: http://www.sciencedirect.com/science/article/pii/S0141029603002773#. [Accessed 14/01/2004]	en
heal.abstract	In this paper we discuss a practical two-stage approach (design and operation) to the seismic control of structures equipped with active variable stiffness (AVS) systems, as a means to mitigate or eliminate resonance or near-resonance phenomena in structures due to seismic ground motion. During the design stage, past seismic events are processed to extract the characteristic frequency content against which the AVS-equipped structure is designed, using a conventional envelope spectrum approach. The motivation for the operation stage builds upon advances in early-warning systems that hold the promise of delivering the expected ground motion waveforms at sites equipped with AVS and at instances just prior to the first wave arrival. The working hypothesis for the operation stage is that notification of the incoming motion will be served to the AVS-equipped site so as to allow for a small but sufficient window for moving the hydraulics of the AVS system to compensate for the frequency content of the arriving seismic signal. Numerical results are presented for both design and operation stages of a prototype building under real past seismic events.	en
heal.publisher	Elsevier Ltd	el
heal.journalName	Engineering Structures	en
heal.journalType	peer-reviewed
heal.fullTextAvailability	true