돔형 스페이스 프레임의 부재강성변화에 따른임계좌굴하중과 유효좌굴길이계수
분야
공학 > 건축공학
저자
손수덕 ( Su Deok Shon ) , 이승재 ( Seung Jae Lee )
발행기관
한국공간구조학회
간행물정보
한국공간구조논문집 2013년, 제13권 제1호, 87~96페이지(총10페이지)
파일형식
2a101115.pdf [무료 PDF 뷰어 다운로드]
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    This study investigated characteristics of buckling load and effective buckling length by member rigidity of dome-typed space frame which was sensitive to initial conditions. A critical point and a buckling load were computed by analyzing the eigenvalues and determinants of the tangential stiffness matrix. The hexagonal pyramid model and star dome were selected for the case study in order to examine the nodal buckling and member buckling in accordance with member rigidity. From the numerical results, an effective buckling length factor of adopted models was bigger than that of Euler buckling for the case of fixed boundary. These numerical models indicated that the influence of nodal buckling was greater than that of member buckling as member rigidity was higher. Besides, there was a tendency that the bifurcation appeared on the equilibrium path before limit point in the member buckling model.
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