Evaluation of the bending performance of glued CLT-concrete composite floors based on the CFRP reinforcement ratio

A study was conducted on the reinforcement of cross-laminated timber (CLT) concrete composite floors with carbon fiber reinforced plastic (CFRP) to improve its mechanical performance and reliability in wood structures. four-point bending test evaluation completed three types produced different ratios (33%, 66%, 100%) entire surface tensile portion. An increase ratio led an increased capacity a slightly improved yield performance. In case floor 33%, premature failure occurred elastic region due defects CLT such as knots slopes grain. Failure mode analysis revealed that shear coexist when has CFRP 33%. contrast, 66% 100% prevented failures caused by induced consistent mode. These effects reduced variability accuracy theoretical prediction design via γ-method. Meanwhile, connections between epoxy adhesive exhibited full-composite behavior without being affected ratio.