Prefabricated coincide reinforcing bar concrete beam

The utility model provides a prefabricated coincide reinforcing bar concrete beam, middle reinforcing bar are long and thin I -steel, the I -steel includes the web on top flange, lower flange and theupper and lower edge of a wing of connection, reinforcing bar ecderon U type stirrup surrounds in the middle of the, and between middle reinforcing bar and U type stirrup, U type stirrup all is equipped with concrete layer outward, middle reinforcing bar stretches out from the concrete layer at roof beam both ends, and fixed surface has a plurality of cant chiseis on the top flange of middle reinforcing bar, and the top flange has and is equipped with cast -in -place layer above cant chisei one side. The atress is reasonable, can reduce roof beam section size under same loading, has increasedthe span, improves a lot in intensity, rigidity, ductility, power consumption performance simultaneously, has good antidetonation dominance ability. Remove the ligature of reinforcing bar from, the processing preparation is mo