Abstract
Drop weight impact experiments, in which two kinds of mass were dropped from various height, were carried out to investigate shear failure behavior of PC beams. From the experiment on the effect of momentum and the kinetic energy of the steel weight on the shear failure, it becomes clear that the ultimate shear failure of PC beams depends on the kinetic energy of the steel weight rather than the momentum. In addition, effects of the stirrups and absorbed energy are examined. These conclusions are compared with results of static and rapid speed shear loading tests as well as existing formula
