000018236 001__ 18236
000018236 005__ 20170118182213.0
000018236 04107 $$aeng
000018236 046__ $$k2017-01-09
000018236 100__ $$aHerrera, Ricardo
000018236 24500 $$aExperimental Evaluation of a Buckling Restrained Brace Using a Non-Traditional Material

000018236 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000018236 260__ $$b
000018236 506__ $$arestricted
000018236 520__ $$2eng$$aSteel braced frames include braces to provide lateral resistance and stiffness. Conventional steel braces may buckle in compression and break after a few cycles when subjected to seismic loads. In order to provide adequate seismic resistance, larger sections of the braces must be used than those required purely from the level of tensile stresses. As an alternative, Buckling Restrained Braces (BRBs) are increasingly being used as seismic protection elements. This research aims to experimentally study the behaviour of buckling restrained braces constructed using a non-traditional material, subjected to monotonic and cyclic loads. It is expected that the use of this material will simplify the fabrication process, the transportation, and the installation in the structure, as compared to currently available BRBs, without loss of strength and deformation capacity. Four specimens 2-meter long are manufactured using a square outer steel tube (200mmx200mmx5mm), a rectangular steel core (100mmx10mm), and a rubber-like material as confining material. The steel used is ASTM A36. The specimens consider variation of parameters such as the level of bond between the steel core and the confining material, the type of loading (monotonic versus cyclic), and the presence of steel end caps to restrict the longitudinal movement of the confining material. Constitutive relations of the confining material are determined from cyclic tests of material coupons under tension and direct shear loading. The brace specimens are subjected to displacement controlled tension/compression cycles of increasing amplitude, according to AISC 341-10. Stable hysteresis cycles with slight strength degradation are obtained, showing that using this material in BRBs is an appropriate solution that can be manufactured with local technology.

000018236 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000018236 653__ $$aBuckling restrained brace, cyclic loading tests, steel structures, ductility demand, energy dissipation

000018236 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000018236 720__ $$aHerrera, Ricardo$$iEscobedo, Fabián$$iEspinoza, José$$iBeltrán, Juan
000018236 8560_ $$ffischerc@itam.cas.cz
000018236 8564_ $$s705677$$uhttps://invenio.itam.cas.cz/record/18236/files/1073.pdf$$yOriginal version of the author's contribution as presented on USB, paper 1073.
000018236 962__ $$r16048
000018236 980__ $$aPAPER