Assembled composite foundation load test bearing plate

The invention provides an assembled composite foundation load test bearing plate, and relates to the technical field of road and bridge detection. The assembled composite foundation load test bearing plate is formed by assembling a plurality of single-piece combined bearing plates, wherein each single-piece combined bearing plate comprises a basic bearing plate (1), a long steel stiffening beam (2), a short steel stiffening beam (3) and abutting plates (4), wherein a plurality of auxiliary splicing grooves (6) are formed in the periphery of the basic bearing plate (1), the long steel stiffening beam (2) and the short steel stiffening beam (3) which are vertically crossed are arranged on the plate surface, webs of the long steel stiffening beam (2) and the short steel stiffening beam (3) are connected, the abutting plates (4) are arranged on the outer sides of the long steel stiffening beam (2) and the short steel stiffening beam (3), and a plurality of bolt holes (5) are formed in the abutting plates (4) and