Journal of the Korea institute for structural maintenance and inspection (한국구조물진단유지관리공학회 논문집)

Korea Institute for Structural Maintenance Inspection (한국구조물진단유지관리공학회)
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Hysteretic Behavior of Steel Damper for the Lateral Displacement Control

횡 변위 조절을 위한 강재 댐퍼의 이력 거동

  • Lee, Hyun-Ho (Department of Architecture & Fire Safety, Dongyang University)
  • 이현호 (동양대학교 건축소방안전학과)
  • Received : 2018.01.23
  • Accepted : 2018.03.14
  • Published : 2018.05.01
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Abstract

Detail development and performance tests were conducted for the purpose of developing a damper system capable of lateral displacement control of existing frame structures. The development details are 1) ALD designed to prevent deformation of beams between columns and 2) AWD designed to control inter-story displacement. The non-reinforced BF specimen was used as a comparative study. The evaluation variables are failure mode, load-displacement curve, envelope curve, maximum strength, stiffness degradation and energy dissipation capacity. As a result, the seismic strengthening effect of ALD and AWD was confirmed. Also, it was confirmed that the method of restraining the column with the aramid sheet is superior to the improvement of the seismic performance.

기존 골조구조물의 횡 변위 조절이 가능한 댐퍼 시스템을 개발하기 위한 목적으로 상세개발 및 성능실험을 실시하였다. 개발 상세는 기둥간 보의 변형을 방지하기 위하여 고안된 ALD및 층간변위를 제어하기 위하여 고안된 AWD로 구분되며, 기존 연구결과의 비보강 BF를 비교대상으로 사용하였다. 파괴양상, 하중-변위 곡선, 포락선, 최대강도, 강성저하 및 에너지 소산능력 등을 비교 평가하였으며, ALD 및 AWD의 내진보강효과를 확인할 수 있었다. 또한 아라미드 시트로 기둥을 구속하는 공법이 내진성능 향상에 매우 우수함을 확인하였다.

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References

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