Study on the interfacial shear behavior of steel-UHPC glued composite decks

Key Points

• Findings reveal that interfacial shear strength is significantly increased at the steel-UHPC interface, indicating improved load-carrying capacity.
• The increase in shear strength exceeds 20% compared to traditional bonding methods, highlighting a promising material performance.
• Observational analysis across multiple joint configurations shows variations in shear behavior, emphasizing design considerations for engineers.
• Potential applications include bridges and high-load structures, necessitating further study on long-term durability and environmental effects.