Rear hoop method profiled steel beam construction method

The invention discloses a rear hoop method profiled steel beam construction method which comprises the following steps that I-shaped steel is cut, and a lifting ring is welded to the I-shaped steel; supporting upright column concrete at the two ends of a profiled steel beam are poured and tamped, and floating is performed; a profiled steel beam bracket and a template are built between the supporting upright columns at the two ends; a main rib, a waist rib and a stirrup of the profiled steel beam are processed, wherein the stirrup comprises a horizontal bottom stirrup, a vertical stirrup, a long inclined barb stirrup and a short barb stirrup; the bottom rib, the waist rib, the main rib, a main rib and the stirrup of the profiled steel beam are placed in the template, the main rib at the toplayer is not installed, and the long inclined barb stirrup is inclined upwards to form an opening, into which the I-shaped steel is hoisted; the I-shaped steel is hoisted and placed in a beam die through the opening, and the