Material bending test device for construction site

The utility model discloses a material bending test device for a construction site. The material bending test device comprises a lower cross beam, an upper cross beam, a movable cross beam, an upright post, a lead screw mechanism, an upper clamp and a lower clamp, the bottom of the stand column is connected to the lower beam, the top of the stand column is connected with the upper beam, and the movable beam is located between the upper beam and the lower beam and can axially move along the stand column. The two ends of a lead screw in the lead screw mechanism are connected to the lower beam and the upper beam respectively, and the lead screw rotates to drive the movable beam to move back and forth in the axial direction of the stand column. When the bending performance testing device is used for testing the bending performance, a test block with a standard size does not need to be prepared, cutting sampling can be generally carried out on a reinforced construction wall surface, then high-ductility concrete of