Reinforced rigid frame structure

The invention provides a reinforced rigid frame structure, and belongs to the technical field of rigid frame reinforcement. The reinforced rigid frame structure comprises a rigid frame body, a plurality of connection seats, connection rods, and a bottom plate, a section of the rigid frame body is in a U shape, the rigid frame body is provided with a beam in the middle and upright columns on the two sides, the beam is provided with a plurality of first through holes in the length direction at intervals, the connection seats are provided with second through holes one-to-one corresponding to thefirst through holes, the connection seats are connected with the beam through bolts and nuts, the bolts penetrating through the first through holes and the second through holes are matched with the nuts, one ends of the connection rods are hinged to the connection seats, each connection seat is hinged to the two connection rods at the same time, the two ends of the bottom plate are correspondinglyprovided with the two upr