Journal of Engineering Research
Abstract
This investigative research delves into the correlation between dry joint ultimate load and varied applied confinement stress levels – low at 2 MPa, moderate at 4 MPa, and high at 6 MPa – within structural joints. The focus is on diverse configurations of shear key quantities (single, dual, and triple shear keys) within these joints. Additionally, an examination was conducted on the influence of concrete types –Normal Strength Concrete (NSC) rated at 30 MPa, High Strength Concrete (HSC) at 60 MPa, and Ultra-High Strength Concrete (UHSC) at 120 MPa – alongside the aforementioned confinement stress levels on load capacity. The findings underscore a consistent enhancement in load capacity with escalating concrete strength, notably observed with UHSC exhibiting substantial advancements, particularly under conditions of mild to moderate confinement stresses. The study uncovers a nuanced association between confinement stress and load capacity, with results diverging for HSC and UHSC under scenarios of heightened confinement stresses. Furthermore, an in-depth exploration is conducted into the impact of shear-keyed joint configurations on joint performance, underscoring the pivotal role of shear-key design in ensuring structural resilience. These discoveries furnish invaluable insights for fine-tuning structural performance by judiciously selecting concrete strengths and shear key configurations tailored to specific confinement stress circumstances.
Recommended Citation
Ramzy, Khaled and Abdel Aziz, Mahmoud Ahmed Mohammed
(2024)
"Investigating the Influence of Confinement Stress and Concrete Type on the Performance of Precast Segmental Dry shear-keyed Joints,"
Journal of Engineering Research: Vol. 8:
Iss.
4, Article 26.
Available at:
https://digitalcommons.aaru.edu.jo/erjeng/vol8/iss4/26