PSI - Issue 73

Přemysl Pařenica et al. / Procedia Structural Integrity 73 (2025) 125 – 129 Přemysl Pařenica and Petr Lehner / Structural Integrity Procedia 00 (2025) 000–000

129

5

Based on the performed numerical simulations and comparison with the conclusions of previous studies, the following conclusions can be drawn: • bolting of the purlin web to the supporting structure in conjunction with the reinforcing clip leads to an increase in the overall load-bearing capacity of the connection. • numerical results show that the use of a reinforcing clip without additional web bolting can increase the load bearing capacity by 67% (for a span of 3.1 m) to 29% (for a span of 5.0 m) compared to the connection without a clip. • addition of bolting further increases the load-bearing capacity by another 32% (for a span of 3.1 m) or 14% (for a span of 5.0 m). These conclusions support the use of reinforcing clips and additional web bolting for tall thin-walled purlins, allowing for design optimization and increased load-bearing capacity of structures. Acknowledgements The authors express their gratitude for the financial assistance provided by the VŠB-Technical University of Ostrava, Faculty of Civil Engineering, which was made possible through the Czech Ministry of Education, Youth, ANSYS, 2020. ANSYS Meshing User’s Guide [WWW Document]. ANSYS User Guide. URL https://customercenter.ansys.com/ (accessed 10.29.20). Bathe, K.-J., 2008. Finite Element Method, in: Wiley Encyclopedia of Computer Science and Engineering. John Wiley & Sons, Inc., Hoboken, NJ, USA. https://doi.org/10.1002/9780470050118.ecse159 Carbas, S., Saka, M.P., 2016. Optimum design of cold-formed thin-walled sections subjected to axial and bi-axial bending using artificial bee colony algorithm. Research on Engineering Structures & Materials. https://doi.org/10.17515/resm2015.13st0816 Flodr, J., Krejsa, M., Mikolášek, D., Sucharda, O., Žídek, L., 2014. Mathematical Modelling of Thin -Walled Cold-Rolled Cross-Section. Applied Mechanics and Materials 617, 171–174. https://doi.org/10.4028/www.scientific.net/AMM.617.171 Gutierrez, R., Loureiro, A., Lopez, M., Moreno, A., 2011. Analysis of cold-formed purlins with slotted sleeve connections. Thin-Walled Structures 49. https://doi.org/10.1016/j.tws.2011.02.008 Obeydi, M., Daei, M., Zeynalian, M., Abbasi, M., 2021. Numerical modeling on thin-walled cold-formed steel clip angles subjected to pull-out failures. Thin-Walled Structures 164. https://doi.org/10.1016/j.tws.2021.107716 Pařenica, P., Krejsa, M., Brožovský, J., Lehner, P., 2024. Verification of Numerical Models of High Thin -Walled Cold-Formed Steel Purlins. Materials 17. https://doi.org/10.3390/ma17174392 Pařenica, P., Lehner, P., Brožovský, J., Krejsa, M., 2021. Numerical models of the connection of thin -walled z-profile roof purlins. Materials 14. https://doi.org/10.3390/ma14216573 Pařenica, P., Mynarčík, P., Lehner, P., 2023. Experimental study of high thin -walled cold-rolled Z cross-sections purlins. J Constr Steel Res 208. https://doi.org/10.1016/j.jcsr.2023.108017 Sheta, A., Ma, X., Zhuge, Y., ElGawady, M., Mills, J.E., Abd-Elaal, E., 2023. Axial compressive behaviour of thin-walled composite columns comprise high-strength cold-formed steel and PE-ECC. Thin-Walled Structures 184, 110471. https://doi.org/10.1016/J.TWS.2022.110471 Tomà, A., Sedlacek, G., Weynand, K., 1993. Connections in cold -formed steel. Thin-Walled Structures 16, 219–237. https://doi.org/10.1016/0263-8231(93)90046-D and Sports. References