Abstract
Self-drilling screws have been used extensively in cold-formed steel structures. The American Specification and Australian Standard both provide design checks for different limit states of screwed connections. However, in a connection undergoing bending, while a screw may fail, other screws may be still in the elastic state. Therefore, investigation in the load-deflection response of screw connectors before failure is required for further understanding of complex screwed connections. This paper describes a shear test using 3 screws connecting in G450 steel sheets. A 3D finite element (FE) model was developed and validated using ABAQUS software. The simulation is able to reproduce the experiment’s results in term of shear strength, stiffness and ductility of the connections. The simplicity of this model allows it to be adapted into full scale connection modeling.
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References
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Acknowledgments
This research was carried out under the research grants “Hybrid steel-framed structural systems for mid-rise buildings” from Australian Research Council/Discovery Projects, with the support of the University of Sydney. The first author’s research degree was supported by the Research Training Program (RTP) Fee Scholarship by the Australian Government. The steel sheets were provided by BlueScope Steel. The authors gratefully acknowledge for the supports.
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Huynh, M.T., Pham, C.H., Hancock, G.J. (2018). On the Finite Element Modeling of the Screwed Connections of Cold-Formed Steel. In: Tran-Nguyen, HH., Wong, H., Ragueneau, F., Ha-Minh, C. (eds) Proceedings of the 4th Congrès International de Géotechnique - Ouvrages -Structures. CIGOS 2017. Lecture Notes in Civil Engineering , vol 8. Springer, Singapore. https://doi.org/10.1007/978-981-10-6713-6_21
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DOI: https://doi.org/10.1007/978-981-10-6713-6_21
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