RESEARCH ARTICLE


Research on Initial Stiffness of Top-and-Seat Angle Semirigid Connections



Liu Wei*, 1, 2, Shu Ganping2
1 Department of Architectural Engineering, Hefei University, Hefei 230022, China
2 School of Civil Engineering, South-east University, Nanjing 210096, China


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Creative Commons License
© 2015 Wei and Ganping;

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: https://creativecommons.org/licenses/by/4.0/legalcode. This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.



Abstract

Based on the mechanical characteristics, deformation characteristics of top-and-seat angle semirigid connections, the initial stiffness of the connections were studied. The initial stiffness were derived theoretically with component method. Analytical formulas and fitted formulas were obtained, and these formulas were analysed comparatively with test data and FEA results. The results of the research indicated that the initial stiffness of top-and-seat angle semirigid connections were expressed accurately by the fitted formula in the paper, and fit accurately with test data and FEA results. The results provided good condition for practical calculation method of such semirigid connections.

Keywords: Initial stiffness, semi-rigid connections, top-seat angle connections.



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