Stable in structure's beam column of filling span of a man's arms

The utility model discloses a stable in structure's beam column of filling span of a man's arms, including relative C shaped steel and the 2nd C shaped steel that sets up of two openings, a C shaped steel includes first bottom plate, a pair of first curb plate and a pair of first buckle, and the both sides of first bottom plate are located respectively perpendicularily to a pair of first curb plate, and a pair of first buckle is located respectively on a pair of first curb plate, and a pair of first buckle is all parallel with first bottom plate, the 2nd C shaped steel includes second bottom plate, a pair of second curb plate and a pair of second buckle, and the both sides of second bottom plate are located respectively perpendicularily to a pair of second curb plate, and a pair of secondbuckle is located respectively on a pair of second curb plate, and a pair of second buckle is all parallel with the second bottom plate, be equipped with first locating hole on the first buckle, be equipped with the first ret