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논문 기본 정보

자료유형
학술저널
저자정보
Kyung, Yong-Soo (Department of Civil and Environmental Engineering, Sungkyunkwan University) Kim, Nam-Il (Department of Civil and Environmental Engineering, Myongji University) Kim, Ho-Kyung (Department of Civil Engineering, Mokpo National University) Kim, Moon-Young (Department of Civil and Environmental Engineering, Sungkyunkwan University)
저널정보
테크노프레스 Structural engineering and mechanics : An international journal Structural engineering and mechanics : An international journal 제26권 제6호
발행연도
2007.1
수록면
651 - 672 (22page)

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This study presents an improved method that uses the elastic and inelastic system buckling analyses for determining the K-factors of steel column members. The inelastic system buckling analysis is based on the tangent modulus theory for a single column and the application is extended to the frame structural system. The tangent modulus of an inelastic column is first derived as a function of nominal compressive stress from the column strength curve given in the design codes. The tangential stiffness matrix of a beam-column element is then formulated by using the so-called stability function or Hermitian interpolation functions. Two inelastic system buckling analysis procedures are newly proposed by utilizing nonlinear eigenvalue analysis algorithms. Finally, a practical method for determining the K-factors of individual members in a steel frame structure is proposed based on the inelastic and/or elastic system buckling analyses. The K-factors according to the proposed procedure are calculated for numerical examples and compared with other results in available references.

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