INVESTIGADORES
CURADELLI raul oscar
artículos
Título:
Performance of tuned mass damper on nonlinear structures subjected to near-fault earthquakes
Autor/es:
DOMIZIO MARTÍN; AMBROSINI, DANIEL; CURADELLI, OSCAR
Revista:
SMART STRUCTURES AND SYSTEMS
Editorial:
TECHNO-PRESS
Referencias:
Lugar: Korea; Año: 2015 vol. 16 p. 725 - 742
ISSN:
1738-1584
Resumen:
uned mass dampers (TMD) are devices employed in vibration control since the beginning ofthe twentieth century. However, their implementation for controlling the seismic response in civil structuresis more recent. While the efficiency of TMD on structures under far-field earthquakes has beendemonstrated, the convenience of its employment against near-fault earthquakes is still under discussion. Inthis context, the study of this type of device is raised, not as an alternative to the seismic isolation, which isclearly a better choice for new buildings, but rather as an improvement in the structural safety of existingbuildings. Seismic records with an impulsive character have been registered in the vicinity of faults thatcause seismic events. In this paper, the ability of TMD to control the response of structures that experienceinelastic deformations and eventually reach collapse subject to the action of such earthquakes is studied.The results of a series of nonlinear dynamic analyses are presented. These analyses are performed on anumerical model of a structure under the action of near-fault earthquakes. The structure analyzed in thisstudy is a steel frame which behaves as a single degree of freedom (SDOF) system. TMD with differentmass values are added on the numerical model of the structure, and the TMD performance is evaluated bycomparing the response of the structure with and without the control device.