Shield segment structure assembly type bidirectional loading bending resistance test device

The invention discloses a shield segment structure assembly type bidirectional loading bending resistance test device, which comprises: a reaction frame in an arc shape with a downward opening; the reaction frames are transversely mounted on the two concrete bases; the test piece mounting devices are respectively arranged at the left end and the right end of the shield segment and are used for mounting the shield segment; a plurality of vertical hydraulic jack groups are arranged on the bottom surface of the reaction frame; the vertical pressurizing blocks distributed in one-to-one correspondence with the vertical hydraulic jack sets are arranged on the top face of the shield segment, and solid steel bars abutting against the top face of the shield segment are arranged on the bottom faces of the vertical pressurizing blocks; every two adjacent vertical pressurizing blocks are connected through a connecting mechanism. The horizontal loading devices are arranged on the inner side faces of the concrete bases and