Dynamic Response and Damage State of CFRP-Jacketed Reinforced Concrete Columns under Vehicle Collision

Key Points

• The study aims to analyze the dynamic response and damage state of CFRP-jacketed reinforced concrete columns under vehicle collision loads.
• Conducted numerical analysis validated by existing collision experiments
• Assessed parameters like impact force, lateral displacement, and energy dissipation
• Expanded model application to simulate vehicle collision scenarios on full-scale bridge piers
• Performed parametric studies on column diameter, layer number of CFRP jackets, and stacking angles
• Applied rotation angle-based damage classification for evaluation.
• CFRP jacketing significantly improves impact resistance, especially in smaller diameter columns
• The numerical model showed high accuracy in comparison to experimental data for various impact indicators
• Findings support the practical application of CFRP jacketing to enhance collision performance of concrete piers.