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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 국제구조공학회 Structural Engineering and Mechanics, An Int'l Journal Structural Engineering and Mechanics, An Int'l Journal Vol.73 No.2
- 발행연도
- 2020.1
- 수록면
- 167 - 179 (13page)
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초록· 키워드
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This study provides a simplified method for the evaluation of shear lag stress in rectangular box T-joints. The occurrence of shear lag phenomenon in the box T-joint generates stress concentration localized at both web-flange junctions of the beam, which leads to cracking or failure in the weld region of the joint. To prevent such critical circumstance, peak stress at the weld region is required to be checked during a preliminary design stage. In this paper, the shear lag stresses in the T-joints were evaluated using least-work solution in which the longitudinal displacements of the beam flange and web were presumed. The evaluation process considered particularly the effect of column flange flexibility, which was represented by an axial spring model, on the shear lag stress distribution. A simplified method for stress evaluation was provided to avoid solving complex mathematical problems using a stress modification factor βs from a parametric study. The results showed that the proposed method was valid for predicting the shear lag stress in the box T-joints manually, as well compared with finite element results. The results are further summarized, discussed, and clarified that more flexible column flange caused higher stress concentration.
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참고문헌 (31)
참고문헌 신청
Abaqus / 2017 / User’s Manual / Vélizy-Villacoublay
AIJ / 2008 / Recommendations for Design and Construction of Concrete Filled Steel Tubular Structures / Architectural Institute of Japan
ANSI / 2010 / AISC 360-10, Specification for Structural Steel Buildings / American Institute of Steel Construction
Chang, S. T. / 1987 / Negative shear lag in cantilever box girder with constant depth / J. Struct. Eng 113(1):20~35
Chen, J. / 2014 / Closed-form solution for shear lag with derived flange deformation function / J. Constr. Steel Res. 102(2014):104~110
AIJ / 2008 / Recommendations for Design and Construction of Concrete Filled Steel Tubular Structures / Architectural Institute of Japan
ANSI / 2010 / AISC 360-10, Specification for Structural Steel Buildings / American Institute of Steel Construction
Chang, S. T. / 1987 / Negative shear lag in cantilever box girder with constant depth / J. Struct. Eng 113(1):20~35
Chen, J. / 2014 / Closed-form solution for shear lag with derived flange deformation function / J. Constr. Steel Res. 102(2014):104~110
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