한국강구조학회 논문집 (Journal of Korean Society of Steel Construction)

  • 제22권3호
  • /
  • Pages.229-239
  • /
  • 2010
  • /
  • 1226-363X(pISSN)
  • /
  • 2287-4054(eISSN)
한국강구조학회 (Korean Society of Steel Construction)
권호 표지

다이아그리드 구조 시스템의 내진성능계수 평가

Evaluation of Seismic Performance Factors of Diagrid Structural System

  • 김경환 (고려대학교 대학원 건축사회환경공학부) ;
  • 주영규 (고려대학교 건축사회환경공학부) ;
  • 김상대 (고려대학교 건축사회환경공학부)
  • 투고 : 2008.11.15
  • 심사 : 2010.02.01
  • 발행 : 2010.06.27
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초록

새롭게 제안된 다이아그리드 구조 시스템은 경사진 기둥을 통해 구조물의 중력하중과 횡력을 모두 저항하는 시스템이다. 하지만 현재 내진설계 기준은 새로운 구조시스템에 대한 적절한 반응수정계수가 없다. 이에 새로운 시스템의 반응수정계수를 포함한 내진설계시 고려되는 내진성능계수들을 산정하기 위해 ATC-63(안)이 새롭게 제안되었다. ATC-63(안)에서는 구조 시스템의 여러 변수에 의해 다른 값을 가지게 되는 반응수정계수를 보완하기 위해 붕괴여유비를 함께 고려하여 건물의 내진성능을 판단한다. 본 논문에서는 4층에서 36층의 서로 다른 높이의 대각가 새 구조물을 설계하여 ATC-63(안)의 방법론에 따라 비선형정적해석과 동적해석을 통해 대각가새 구조의 내진성능계수를 평가하였다.

As a new structural system, the diagrid system resists both gravity and lateral loads with diagonal columns. In current seismic design provisions, however, the response modification factor for a new structural system is not provided yet. ATC-63 provides a new methodology for defining various seismic performance factors, including the response modification factor. ATC-63 includes the collapse margin ratio in modifying the response modification factor, which can vary with many structural systems. In this paper, a non-linear static analysis and a dynamic analysis were conducted for four different diagrid models with 4-to 36-story heights. From these analyses, the response modification factor of the diagrid system was evaluated.

키워드

참고문헌

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