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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.41 No.1
- 발행연도
- 2021.10
- 수록면
- 1 - 11 (11page)
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This paper proposes a NSTS (new steel tube slab) structure by connecting the longitudinal steel tubes with small steel tubes in transverse, in order to decrease the construction difficulty and improve the bearing capacity of existing NTR (new tubular roof) or STS (steel tube slab) structures. Experimental study on the bending performance and influences of following parameters are carried out: the connection type of the steel tube, the diameter and eccentricity of the small steel tube, and the thickness of the bottom steel plate. The results show that the NSTS members present progressive ductile flexural failure under concentrated load. The connection type has important effect on the mechanical behavior, and the bolts fixed T-shaped plate (B+T) connection method, which provides much higher bending stiffness, is proved to be the most reliable connection type. The increase of small steel tube diameter enhances the bending performance as expected, which also confirms the effectiveness of the B+T connection, while the tube eccentricity presents little impact on the bearing capacity. The bottom steel plate significantly improves the bearing capacity and stiffness and reduces the mid-span deflection. Furthermore, the bending capacity calculation method is proposed and the calculated values show good agreement with the test results. Also, the effect rules of the diameter-thickness ratio of the small tube, the length-diameter ratio of the member and the thickness variety of the bottom steel plate on the bending capacity of NSTS members are further investigated based on the proposed theoretical method.
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참고문헌 (37)
참고문헌 신청
2016 / ANSI/AISC 360 Specification for Structural Steel Buildings / American Institute of Steel Construction (AISC)
G. J. Bae / 2005 / Homogenization framework for three-dimensional elastoplastic finite element analysis of a grouted pipe-roofing reinforcement method for tunnelling / International Journal for Numerical and Analytical Methods in Geomechanics 29(1):1~24
William Bergeson / 2014 / Review of long drive microtunneling technology for use on large scale projects / Tunnelling and Underground Space Technology 39:66~72
2012 / CECS 28 Technical specification for concrete-filled steel tubular structures / Association for Engineering Construction Standardization
B.L. Chen / 2019 / Experimental study on hollow steel-reinforced concrete-filled GFRP tubular members under axial compression / Steel and Composite Structures, An International Journal 32(1):59~66
G. J. Bae / 2005 / Homogenization framework for three-dimensional elastoplastic finite element analysis of a grouted pipe-roofing reinforcement method for tunnelling / International Journal for Numerical and Analytical Methods in Geomechanics 29(1):1~24
William Bergeson / 2014 / Review of long drive microtunneling technology for use on large scale projects / Tunnelling and Underground Space Technology 39:66~72
2012 / CECS 28 Technical specification for concrete-filled steel tubular structures / Association for Engineering Construction Standardization
B.L. Chen / 2019 / Experimental study on hollow steel-reinforced concrete-filled GFRP tubular members under axial compression / Steel and Composite Structures, An International Journal 32(1):59~66
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