Journal of Korean Society of Steel Construction (한국강구조학회 논문집)

Korean Society of Steel Construction (한국강구조학회)
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Seismic Behavior of 3-Story Steel Frame Structures Subjected to Ground Motions

지진동을 받는 3층 강재 프레임 구조물의 지진 거동

  • Hu, Jongwan (Dept. of Civil and Environmental Engineering, Incheon National University) ;
  • Cha, Youngwook (Dept. of Civil and Environmental Engineering, Incheon National University)
  • 허종완 (인천대학교, 건설환경공학부) ;
  • 차영욱 (인천대학교, 건설환경공학부)
  • Received : 2016.08.23
  • Accepted : 2016.10.01
  • Published : 2016.12.27
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Abstract

This study is intended to predict the seismic behavior of the down-scaled 3-story steel frame structures subjected to the real ground motion, and evaluate their structural damage through advanced finite element (FE) analysis results. The FE frame models are designed by considering the effect of the soft story. In addition, the effect of structural asymmetry is also taken into consideration during the nonlinear dynamic analyses. After observing the analysis results, it is reconfirmed that the damage of the steel frame building under the ground motion should be governed by the soft story column rather than the structural mass asymmetry.

두본 연구에서는 축소된 3층의 강재 프레임 구조물에 실제 지진동 데이터를 사용하여 고등적인 3차원 유한요소 해석을 통해 거동을 예측하고 손상을 평가하고자 한다. 비선형 동적 해석에서 구조물의 연약층(Soft Story)의 효과와 비대칭성(Asymmetry)을 고려하기 위하여 기둥의 단면적을 축소 시켜 기둥을 손상시키고 집중 질량을 슬래브에 가하여 프레임 모델을 설계를 하였다. 해석 결과 분석을 통해 프레임 구조물의 손상은 중량의 대칭성 보다는 기둥의 손상과 연약층의 존재에 의해서 결정됨을 본 연구를 통하여 재확인할 수 있다.

Keywords

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