In this paper the performance of an hybrid control system for the seismic retrofit of irregular reinforced concrete buildings is investigated. The control system is made of Active Tuned Mass Dampers (ATMDs) capable of mitigating the translational and torsional responses. For an irregular structure with coupled modes, the purely passive control system, although properly tuned to the first 3 modes, is not always able to warrantee the 3D response control. To overcome this problem, one possible solution is to upgrade towards the hybrid approach which allows the mitigation of the response regardless of the characteristics of the seismic input. To demonstrate the effectiveness of the control system for irregular structures subjected to seismic loading, parametric analyses are carried out on the direction of the earthquake and on the type of seismic excitation.
Seismic retrofitting of irregular RC buildings using Active Tuned Mass Dampers
VENANZI, ILARIA;MATERAZZI, Annibale Luigi
2012
Abstract
In this paper the performance of an hybrid control system for the seismic retrofit of irregular reinforced concrete buildings is investigated. The control system is made of Active Tuned Mass Dampers (ATMDs) capable of mitigating the translational and torsional responses. For an irregular structure with coupled modes, the purely passive control system, although properly tuned to the first 3 modes, is not always able to warrantee the 3D response control. To overcome this problem, one possible solution is to upgrade towards the hybrid approach which allows the mitigation of the response regardless of the characteristics of the seismic input. To demonstrate the effectiveness of the control system for irregular structures subjected to seismic loading, parametric analyses are carried out on the direction of the earthquake and on the type of seismic excitation.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
