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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 국제구조공학회 Steel and Composite Structures, An International Journal Steel and Composite Structures, An International Journal Vol.30 No.5
- 발행연도
- 2019.1
- 수록면
- 471 - 481 (11page)
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초록· 키워드
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Beam-columns are structural members subjected to a combination of axial and bending forces. Lateral-torsional buckling is one of the main failure modes. Beam-columns that are bent about its strong axis may buckle out of the plane by deflecting laterally and twisting as the values of the applied loads reach a limiting state. Lateral-torsional buckling failure occurs suddenly in beam-column elements with a much greater in-plane bending stiffness than torsional or lateral bending stiffness. This study intends to establish a unique convenient closed-form equation that it can be used for calculating critical elastic lateraltorsional buckling load of beam-column in the presence of a known axial load. The presented equation includes first order bending distribution, the position of the loads acting transversely on the beam-column and mono-symmetry property of the section. Effects of axial loads, slenderness and load positions on lateral torsional buckling behavior of beam-columns are investigated. The proposed solutions are compared to finite element simulations where thin-walled shell elements including warping are used. Good agreement between the analytical and the numerical solutions is demonstrated. It is found out that the lateral-torsional buckling load of beam-columns with mono-symmetric sections can be determined by the presented equation and can be safely used in design procedures.
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참고문헌 (61)
참고문헌 신청
ABAQUS / 2013 / ABAQUS Theory Guide; Version 6.13.1
Adany, S. / 2014 / Generalized Constrained Finite Strip Method for Thin-Walled Members with Arbitrary Cross Section : Primary Modes / Thin-Wall. Struct 84:150~159
A. Andrade / 2004 / Lateral-torsional buckling of prismatic and tapered thin-walled open beams: assessing the influence of pre-buckling deflections / Steel and Composite Structures, An International Journal 4(4):281~301
Andrade, A. / 2007 / On the evaluation of elastic critical moments in doubly and singly symmetric Isection cantilevers / J. Constr. Steel Res 63:894~908
Asgarian, B. / 2013 / Lateral-torsional buckling of tapered thin-walled beams with arbitrary cross-sections / Thin-Wall. Struct 62:96~108
Adany, S. / 2014 / Generalized Constrained Finite Strip Method for Thin-Walled Members with Arbitrary Cross Section : Primary Modes / Thin-Wall. Struct 84:150~159
A. Andrade / 2004 / Lateral-torsional buckling of prismatic and tapered thin-walled open beams: assessing the influence of pre-buckling deflections / Steel and Composite Structures, An International Journal 4(4):281~301
Andrade, A. / 2007 / On the evaluation of elastic critical moments in doubly and singly symmetric Isection cantilevers / J. Constr. Steel Res 63:894~908
Asgarian, B. / 2013 / Lateral-torsional buckling of tapered thin-walled beams with arbitrary cross-sections / Thin-Wall. Struct 62:96~108
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