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Seismic performance evaluation of moment frames with slit-friction hybrid dampers
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  • Journal title : Earthquakes and Structures
  • Volume 9, Issue 6,  2015, pp.1291-1311
  • Publisher : Techno-Press
  • DOI : 10.12989/eas.2015.9.6.1291
 Title & Authors
Seismic performance evaluation of moment frames with slit-friction hybrid dampers
Lee, Joonho; Kim, Jinkoo;
 Abstract
This study investigates the seismic energy dissipation capacity of a hybrid passive damper composed of a friction and a hysteretic slit damper. The capacity of the hybrid device required to satisfy a given target performance of a reinforced concrete moment resisting frame designed with reduced design base shear is determined based on the ASCE/SEI 7-10 process, and the seismic performances of the structures designed without and with the hybrid dampers are verified by nonlinear dynamic analyses. Fragility analysis is carried out to investigate the probability of a specified limit state to be reached. The analysis results show that in the structure with hybrid dampers the residual displacements are generally reduced and the dissipated inelastic energy is mostly concentrated on the dampers. At the Moderate to Extensive damage states the fragility turned out to be smallest in the structure with the hybrid dampers.
 Keywords
hybrid dampers;slit dampers;friction dampers;seismic performance;fragility analysis;
 Language
English
 Cited by
1.
Seismic retrofit design method using friction damping systems for old low- and mid-rise regular reinforced concrete buildings, Engineering Structures, 2017, 146, 105  crossref(new windwow)
2.
Magneto-rheological and passive damper combinations for seismic mitigation of building structures, Earthquakes and Structures, 2016, 11, 6, 1001  crossref(new windwow)
3.
Seismic loss assessment of a structure retrofitted with slit-friction hybrid dampers, Engineering Structures, 2017, 130, 336  crossref(new windwow)
4.
Seismic performance of steel plate slit-friction hybrid dampers, Journal of Constructional Steel Research, 2017, 136, 128  crossref(new windwow)
5.
Development of box-shaped steel slit dampers for seismic retrofit of building structures, Engineering Structures, 2017, 150, 934  crossref(new windwow)
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