Impact behavior and energy absorption characteristics of shear-failure type RC beams with cushioning material subjected to impact load

Abstract

In this study, 24 cases of static loading and impact loading experiments were conducted using shear-failure type RC beams and cushioning materials in order to analyze the energy absorption characteristics of cushioning materials in shear failure type RC beams subjected to impact loads. Two types of cushioning materials made of foam resin and two types of weights with different masses were used in the experiments. As a result, it was found that the energy absorbed by the RC beam under the impact load was roughly equivalent to the kinetic energy possessed by the weight and beam immediately after the collision. It was also found that the energy absorbed by the RC beam under impact load could be evaluated from the load-displacement relationship of the RC beam under static load.