Portal rigid frame warehousing structure with belt conveyor trestle

The invention discloses a portal rigid frame warehousing structure with a belt conveyor trestle. The portal rigid frame comprises the belt conveyor trestle, a plurality of portal rigid frames connected in sequence, and lower chord bracing structures matched with the portal rigid frames in number, wherein the lower chord bracing structures are arranged in the portal rigid frames and used for connecting the portal rigid frames and the belt conveyor trestle, and the belt conveyor trestle and the portal rigid frame form an integral structure through a connecting node of the belt conveyor trestle and each portal rigid frame. According to the portal rigid frame warehousing structure with the belt conveyor trestle, a trestle tower and steel columns are omitted, lower warehousing space is expanded, and therefore, the economical efficiency of the warehousing structure is remarkably improved; the portal rigid frames can be restrained by the lower chord steel beams when deforming under the action of loads, the tensile c