Novel assembly type steel concrete simple supported slab bridge hinge joint and construction method thereof

The invention relates to a novel assembly type steel concrete simple supported slab bridge hinge joint comprising a plurality of steel concrete precast slabs. One side of the long edge of each steel concrete precast slab is provided with a transverse protruded strip, and the other side of the long edge of the steel concrete precast slab is provided with a transverse groove which is in inserted splicing with the transverse protruded strip of the adjacent steel concrete precast slab; and an upper plate block of the transverse groove is in clearance fit with one side of the long edge and the transverse protruded strip of the adjacent steel concrete precast slab so as to form a hinge joint gap in which micro-expansion concrete is filled. The invention further relates to a construction method of the novel assembly type steel concrete simple supported slab bridge hinge joint. The novel assembly type steel concrete simple supported slab bridge hinge joint and the construction method of the novel assembly type steel concrete simple supported slab bridge hinge joint avoid the defects of the traditional tongue and groove type concrete hinge joint including complex construction, indeterminate stress, difficulty in maintenance and the like, and have the advantages and characteristics of simple construction, definite and reliable stress, easy maintenance in late stages and the like.