Publications by authors named "Spyridon Paschalis"
Article Synopsis
- Strengthening existing columns with additional reinforced concrete jackets is a common method to improve their structural performance, including stiffness and load-bearing capacity.
- This study focuses on using Ultra-High-Performance Fiber-Reinforced Concrete (UHPFRC) jackets to upgrade these columns, analyzing factors like jacket thickness and concrete shrinkage.
- Findings reveal that UHPFRC significantly enhances the strength and stiffness of reinforced concrete columns, especially when combined with steel bars in the jacket, leading to notable improvements in performance.
In the last few years, there has been increasing interest in the use of Ultrahigh-Performance Fibre-Reinforced Concrete (UHPFRC) layers or jackets, which have been proved to be quite effective in strengthening applications. However, to facilitate the extensive use of UHPFRC in strengthening applications, reliable numerical models need to be developed. In the case of UHPFRC, it is common practice to perform either direct tensile or flexural tests to determine the UHPFRC tensile stress-strain models.
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