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SIIA Público
SISTEMA INTEGRAL DE INFORMACIÓN ACADÉMICA - PÚBLICO
Título del libro: A Study Of The Damping Provided By Buckling-Restrained Braces (brbs) Within Their Linear-Elastic Response
Disaster prevention; Disasters; Energy dissipation; Seismic design; Buckling restrained braces; Damping ratio; Experimental investigations; Linear elastic; Linear elastic response; Performance based seismic design; Shaking tables; Small displacement; Damping
Resumen:
This paper presents an experimental investigation aimed at measuring the
increases of damping produced by buckling-restrained braces (BRBs)
working within their linear-elastic range. For that purpose, five
one-storey one-bay steel frames, working in parallel, were tested on a
shaking table. First, the frames were tested without BRBs and then BRBs
were provided to form dual systems. A test with a conventional brace was
also included for comparison purposes. The values of the damping ratio
were calculated for each case. The results show that the BRBs increase
the damping ratio on structures significantly. This happens even under
linear-elastic behaviour. The contribution of each BRB to the damping is
quantified and presented in this paper. The findings of this study are
significant because they show that BRBs start dissipating energy at very
small displacement levels, and this energy dissipation must be taken
into account in the context of performance-based seismic design, in
order to estimate the behaviour of BRB-equipped structures reliably.
Entidades citadas de la UNAM:
Fuente:
ISBN: 9780784480427 Editorial: American Society of Civil Engineers (ASCE)
