Publication: Stress-strain behavior of square concrete columns confined with hybrid B-CSM composites and development of novel prediction models
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Issued Date
2024-07-01
Resource Type
eISSN
26666820
Scopus ID
2-s2.0-85187341869
Journal Title
Composites Part C: Open Access
Volume
14
Rights Holder(s)
SCOPUS
Bibliographic Citation
Composites Part C: Open Access Vol.14 (2024)
Suggested Citation
Thansirichaisree P., Mohamad H., Ejaz A., Saingam P., Hussain Q., Suparp S. Stress-strain behavior of square concrete columns confined with hybrid B-CSM composites and development of novel prediction models. Composites Part C: Open Access Vol.14 (2024). doi:10.1016/j.jcomc.2024.100448 Retrieved from: https://hdl.handle.net/20.500.14740/20867
Corresponding Author(s)
Other Contributor(s)
Abstract
This paper presents a comprehensive investigation into the behavior of concrete confined with hybrid Basalt and Chopped Strand Mat (B-CSM) fibers. The newly proposed B-CSM confinement technique substantially enhances the brittle compressive stress-strain behavior, leading to a noteworthy increase in peak strength (approximately 90%) and ultimate strain (approximately 461 %). The efficiency of B-CSM confinement is affected by the strength of plain concrete, with lower-strength specimens indicating a more pronounced enhancement. The performance of existing analytical models for FRP confinement in predicting ultimate strength and strain in B-CSM confined concrete is assessed, highlighting the need for tailored models. Regression-based equations are proposed for characteristic points along the stress-strain curve, enabling accurate prediction of material behavior. The predicted stress-strain curves exhibit a high level of agreement with experimental results. These findings provide valuable insights for the design and application of B-CSM confinement techniques in structural engineering, facilitating improved performance and ductility of concrete structures under compressive loading conditions.