한국공간구조학회논문집 (Journal of Korean Association for Spatial Structures)

  • 제23권1호
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  • Pages.61-68
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  • 2023
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  • 1598-4095(pISSN)
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  • 2287-7401(eISSN)
한국공간구조학회 (Korean Association for Spatial Structures)
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횡좌굴 방지방식에 따른 비좌굴가새의 이력특성 분석

Analysis of Hysteresis Characteristics of Buckling Restrained Brace According to Lateral buckling prevention Method

  • 투고 : 2023.02.06
  • 심사 : 2023.02.09
  • 발행 : 2023.03.15
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초록

Buckling Restrained Braces can not only express the strength considered at the time of design, but also reduce the seismic load by energy dissipation according to the plastic behavior after yield deformation of the steel core. The physical characteristics and damping effect may be different according to the buckling prevention method of the steel core by the lateral restraint element. Accordingly, in this study, To compare hysteresis characteristics, Specimen(BRB-C) filled with mortar, specimen(BRB-R) combined with a buckling restraint ring and Specimen(BRB-EP) filled with engineering plastics was fabricated, and a cyclic loading test was performed. As a result of the cyclic loading test, the maximum compressive strength, cumulative energy dissipation and ductility of each test specimen was similar. But in case of the cumulative energy dissipation and ductility, BRB-C filled with the mortar specimen showed the lowest. This is considered to be because the gap between the steel core and the reinforcing material for plastic deformation was not uniformly formed by pouring mortar around the core part.

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과제정보

이 논문은 2023년도 정부(과학기술정보통신부)의 재원으로 한국연구재단(NRF-2021R1A2C109464212)에 의해 수행되었습니다.

참고문헌

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