Method for filling hinge joint of fabricated prestressed hollow beam slab

The invention provides a method for filling a hinge joint of a fabricated prestressed hollow beam slab, and belongs to the technical field of bridge engineering. The method comprises the steps as follows: inserting a screw type blocking strip into a bottom gap of the hinge joint, wherein the top surface of the screw type blocking strip comprises two split parts, one part is lapped on the other part, the length of the lapping position is 3-5 cm, and rubber strips are arranged on wing plates on the two sides of the screw type blocking strip; filling the middle of the hinge joint with micro-expansion concrete; when the concrete of the hinge joint reaches enough age period, filling the top of the hinge joint with bituminous grout; and when the bituminous grout reaches the design performance, pouring a pavement layer on the top surface of the hollow beam slab. When the micro-expansion concrete is poured, the top surface of the screw type blocking strip is open, so that the space of a vertical column is communicate