Mechanical behavior investigation of steel connections using a modified component method

Shizhe Chen; Jianrong Pan; Hui Yuan; Zhuangning Xie; Zhan Wang; Xian Dong

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자료유형: 학술저널

저자정보: Shizhe Chen (South China University of Technology) Jianrong Pan (South China University of Technology) Hui Yuan (South China University of Technology) Zhuangning Xie (South China University of Technology) Zhan Wang (South China University of Technology) Xian Dong (South China University of Technology)

저널정보: 국제구조공학회 Steel and Composite Structures, An International Journal Steel and Composite Structures, An International Journal Vol.25 No.1

발행연도: 2017.1

수록면: 117 - 126 (10page)

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The component method is an analytical approach for investigating the moment.rotation relationship of steel connections. In this study, the component method was improved from two aspects: (i) load analysis of mechanical model; and (ii) combination of spring elements. An optimized component method with more reasonable component models, spring arrangement position, and boundary conditions was developed using finite element analysis. An experimental testing program in two major-axis and two minor-axis connections under symmetrically loading was carried out to verify this method. The initial rotational stiffness obtained from the optimized component method was consistent with the experimental results. It can be concluded that (i) The coupling stiffness between column and beam flanges significantly affects the effective height of the tensile-column web. (ii) The mechanical properties of the bending components were obtained using an equivalent t-stub model considering the bending capacity of bolts. (iii) Using the optimized mechanical components, the initial rotational stiffness was accurately calculated using the spring system. (iv) The characteristics of moment.rotation relationship for beam to column connections were effectively expressed by the SPRING element analysis model using ABAQUS. The calculations are simpler, and the results are accurate.

참고문헌 (21)

참고문헌 신청

Beg, D. / 2004 / On the rotation capacity of moment connections / J. Constr. Steel Res 60(3):601~620

1998 / CEN, Eurocode 3, Design of steel structures. Part 1.1:General rules and rules for buildings / European Committee for Standardization

2001 / CEN, Eurocode 4, Design of composite steel and concrete structures. Part 1.1: General rules and rules for buildings / European Committee for Standardization

Chen, S. Z. / 2015 / Application of modified and improved component method in the constitutive relation research for steel connections

Daniunas, A. / 2008 / Analysis of the steel frames with semi-rigid beam-to-beam and beam-to-column knee joints under bending and axial forces / Eng. Struct 30(11):3114~3118

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