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Steel and Composite Structures Volume 44, Number 4, August25 2022 , pages 545-555 DOI: https://doi.org/10.12989/scs.2022.44.4.545 |
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Nonlinear numerical model of headed shear stud anchors for composite open web steel joists |
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Sergio J. Yanez, David W. Dinehart, Juan Carlos Pina and Carlos Felipe Guzmán
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Abstract | ||
Empirical relationships that capture the nonlinear behavior of headed steel shear stud anchors have been derived from standard push out tests, where the specimens are comprised of large wide flanged steel sections attached to flat concrete slabs via the anchors. However, many composite systems used in practice utilize much smaller steel members and/or steel decking as part of the slab system. Composite open web steel joist systems generally include both of these elements and consequently the nonlinear performance ofthe anchor is not accurately represented by existing models. In this paper, a new empirical relation is presented for open web steel joist systems based on experimental results from a modified push out test that more realistically represent a composite open web steel joist system. The methodology for obtaining the proposed nonlinear function where the response of the system is characterized by two parameters( | ||
Key Words | ||
composite open web steel joist system; headed shear stud anchor; nonlinear behavior; push-out test; Savitzki-Golay filter | ||
Address | ||
Sergio J. Yanez:University of Santiago of Chile (USACH), Faculty of Engineering, Civil Engineering Department, Chile David W. Dinehart:Villanova University, Department of Civil and Environmental Engineering, USA Juan Carlos Pina:University of Santiago of Chile (USACH), Faculty of Engineering, Civil Engineering Department, Chile Carlos Felipe Guzman:University of Santiago of Chile (USACH), Faculty of Engineering, Civil Engineering Department, Chile | ||