The use of Tuned Mass Dampers with a large mass ratio (LM-TMD) can represent an efficient means for seismic retrofitting of existing structures, intended as a superelevation of the pre-existing layout having a mass up to 20– 30% of the structural mass. The mechanical properties of the LM-TMD should be designed to reproduce a proper dynamic coupling with the remaining structural system but there is still a limited knowledge about its effectiveness. Hence, this study presents a coupled numerical modelling of a soil-structure system equipped with a LM-TMD, implemented in OpenSees, as a benchmark to test the effectiveness of the non-conventional device. The full model simulates the nonlinear response of the soil-structure-TMD system and the multi-directionality of the seismic motion. The soil-structure interaction effects are quantified by comparing the results of the full model with those obtained in the case of structure with fixed-base. The results highlight the significant improvement of the structural performance when the LM-TMD is used, and the influence of soil-structure interaction on its effectiveness, as an additional source of energy dissipation not affected by the presence of the anti-seismic device.

Assessment of the Seismic Performance of Large Mass Ratio Tuned Mass Dampers in a Soil-Structure System / Gorini, D. N.; Clarizia, G.; Nastri, E.; Marrazzo, P. R.; Montuori, R.. - (2022), pp. 747-754. - GEOTECHNICAL, GEOLOGICAL AND EARTHQUAKE ENGINEERING. [10.1007/978-3-031-11898-2_48].

Assessment of the Seismic Performance of Large Mass Ratio Tuned Mass Dampers in a Soil-Structure System

Gorini D. N.
;
2022

Abstract

The use of Tuned Mass Dampers with a large mass ratio (LM-TMD) can represent an efficient means for seismic retrofitting of existing structures, intended as a superelevation of the pre-existing layout having a mass up to 20– 30% of the structural mass. The mechanical properties of the LM-TMD should be designed to reproduce a proper dynamic coupling with the remaining structural system but there is still a limited knowledge about its effectiveness. Hence, this study presents a coupled numerical modelling of a soil-structure system equipped with a LM-TMD, implemented in OpenSees, as a benchmark to test the effectiveness of the non-conventional device. The full model simulates the nonlinear response of the soil-structure-TMD system and the multi-directionality of the seismic motion. The soil-structure interaction effects are quantified by comparing the results of the full model with those obtained in the case of structure with fixed-base. The results highlight the significant improvement of the structural performance when the LM-TMD is used, and the influence of soil-structure interaction on its effectiveness, as an additional source of energy dissipation not affected by the presence of the anti-seismic device.
2022
Geotechnical, Geological and Earthquake Engineering
978-3-031-11897-5
978-3-031-11898-2
Non-conventional TMD; Nonlinear soil-structure-TMD model; OpenSees; Soil-structure interaction; Vibration control
02 Pubblicazione su volume::02a Capitolo o Articolo
Assessment of the Seismic Performance of Large Mass Ratio Tuned Mass Dampers in a Soil-Structure System / Gorini, D. N.; Clarizia, G.; Nastri, E.; Marrazzo, P. R.; Montuori, R.. - (2022), pp. 747-754. - GEOTECHNICAL, GEOLOGICAL AND EARTHQUAKE ENGINEERING. [10.1007/978-3-031-11898-2_48].
File allegati a questo prodotto
File Dimensione Formato  
Gorini_Assessment_2022.pdf

solo gestori archivio

Note: articolo
Tipologia: Documento in Post-print (versione successiva alla peer review e accettata per la pubblicazione)
Licenza: Tutti i diritti riservati (All rights reserved)
Dimensione 1.28 MB
Formato Adobe PDF
1.28 MB Adobe PDF   Contatta l'autore

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1671724
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 2
  • ???jsp.display-item.citation.isi??? ND
social impact