Power actuated fasteners in sort of mechanical methods have appeared to be an alternative to metallurgical methods in the connection of H-beam and shear connector. Power actuated fasteners can be driven by power actuated tools or by pneumatically driven tools. This mechanical connection method has many advantages over metallurgical connection methods. First of all, a power supply is unnecessary and there are no concerns about an electrical accident. However, the handling of the mechanical connection method takes severs caution. Since the sound at the time of installation is loud, discretion is needed in a quiet place. Four specimens were tested so as to compare the structural behavior of the proposed composite beams with that of the classical composite beam in condition of vertical load. In the results, the proposed composite beam proposed in this paper, having shear connector using driving pins, showed sufficient plastic ductility and strength. And, yielding and maximum strength specimens in suggested composite beams using suggested shear connectors are 1.05~1.06 times than those of CB-SB specimen, which is composite beams using stud bolts.