Performance of CFRP strengthened full-scale SHS connections subjected to cyclic loading
Article
Article Title | Performance of CFRP strengthened full-scale SHS connections subjected to cyclic loading |
---|---|
Article Category | Article |
Authors | Tafsirojjaman, T., Thambiratnam, David P., Sulong, N.H. Ramli and Fawzia, Sabrina |
Journal Title | Thin-Walled Structures |
Journal Citation | 175, pp. 1-14 |
Article Number | 109211 |
Number of Pages | 14 |
Year | 2022 |
Place of Publication | United Kingdom |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.tws.2022.109211 |
Web Address (URL) | https://www.sciencedirect.com/science/article/pii/S0263823122001793 |
Abstract | Square hollow section (SHS) beam–column connections are prevalent in steel structures and extensively used in high seismic risk regions due to their significant architectural and structural benefits. Rehabilitation and strengthening of SHS connections are important considerations due to the vulnerable effects of cyclic loading. Studies on the structural performance of CFRP strengthened SHS connections under large displacement cyclic loading are, however, very limited and the finite element (FE) modelling numerical approach not yet been developed. The objective of the current research is to develop a FE modelling numerical approach to simulate the cyclic response of CFRP strengthened SHS beam–column connections. The modelling techniques are validated by comparing the FE model simulated results with the authors’ experimental results. A detailed parametric study is then conducted to study the effects of the thickness of the beam and column section, moment arm, and the strengthening scheme on the cyclic performance of CFRP strengthened SHS beam–column connections. CFRP strengthened SHS beam–column connections have shown improvements in structural performance with respect to moment hysteresis response, stiffness and energy dissipation capacity. Moreover, CFRP strengthened connections showed less tendency for buckling compared to their bare counterparts. Research findings of the present study will be beneficial to restore the structural integrity of SHS beam–column connections through CFRP strengthening. |
Keywords | CFRP; Cyclic loading; FE modelling; Parametric study; Square hollow section (SHS) beam–column connections; Strengthening |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Funder | Queensland University of Technology |
Byline Affiliations | Centre for Future Materials (Operations) |
Queensland University of Technology | |
Library Services |
https://research.usq.edu.au/item/wq783/performance-of-cfrp-strengthened-full-scale-shs-connections-subjected-to-cyclic-loading
36
total views0
total downloads2
views this month0
downloads this month