[2225] SHEAR BEHAVIOR OF UFC-RC HYBRID BEAMS WITH PBO FIBER
キーワード：bond stress, fiber length, hybrid beam, PBO, shear capacity, UFC, volume content of fiber
The UFC is a cementitious composite reinforced by fiber with excellent properties. And PBO has the highest tensile strength among the organic fibers. This study is aimed to use PBO fiber reinforced UFC to strengthen the RC beams. And it investigates the shear behavior of UFC-RC hybrid beams with the parameters of different kinds of fiber. In addition, the method for evaluating the shear capacity of UFC-RC hybrid beams was proposed. The calculated values showed good agreement with the experimental results.