강재 댐퍼의 스트럿 형상과 높이에 따른 록킹 거동
Rocking Behavior of Steel Dampers according to Strut Shapes and Heights of Steel dampers
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초록
본 연구에서는 벽체의 록킹 거동을 고려한 내진보강 기법을 개발하였다. 록킹 거동은 벽체 수직 축을 중심으로 좌우로 회전하는 것으로, 개발 시스템은 변위 큰 부분에 댐퍼 등을 설치하여 에너지를 소산 시키는 방법이다. 댐퍼는 강재댐퍼를 사용하였으며, 스트럿 형상 및 높이를 변수로 선정하였다. 실험결과 스트럿 높이가 짧을수록 강도 능력이, 길수록 변형능력이 우수한 것으로 평가되었다. I형과 S형 스트럿 능력을 평가한 결과, S형이 우수한 내진 성능을 보유한 것으로 평가되었다.
Abstract
In this study, the seismic strengthening technique considering the rocking behavior of the wall was developed. The rocking system rotatesleft and right around the vertical axis of the wall. The development system is a method of dissipating energy by installing a damper which was attachedat a large displacement portion. The damper was made of a steel material, and the shape and height of the strut were selected as variables. Experimentalresults showed that in case of shorter strut make strength capacity increasement and in case of longer strut make deformation capacity increasement. As a result of comparing the abilities according to I and S type strut shapes, it was evaluated that S type has better seismic performance.
참고문헌 (7)
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