Prestress concrete filled steel tube self-balancing type static load test table for bridge static load test

The invention relates to a bridge static load test device, in particular to a large-span simple supported beam prestress self-balancing type static load test table. The test table comprises a test beam, jacks, counter-force beams, upper cross beams, vertical pull rods, support piers, lever beams and ground counter-force piers. The counter-force beams are located on the test beam, the jacks are located between the counter-force beams and the test beam, the upper cross beams are located at the two ends of the counter-force beams, and the vertical pull rods are arranged at the two ends of the upper cross beams; the lower ends of the vertical pull rods are connected with the rear ends of the lever beams, the lever beams penetrate through the support piers through pin shaft connection, and the front ends of the lever beams are in contact with the ground counter-force piers to provide test counter-force. The counter-force beams are of a section spliced prestress structure so that a large quantity of materials can b