Device for testing I-type fracture performance of ultra-high performance concrete

The invention discloses an I-type fracture performance testing device for ultra-high performance concrete. The I-type fracture performance testing device comprises a test block made of ultra-high performance concrete, a movable support, two force transmission modules and a wedge-shaped loading frame, wherein the test block is arranged on the movable support, a crack with a preset length is formed in the test block, and the crack vertically extends from the upper surface of the test block to the lower surface of the test block; the two force transmission modules are arranged on the two sides of the crack and penetrate through the block body of the test block; the wedge-shaped loading frame is arranged on the test block in a crossing mode, and the wedge-shaped end of the wedge-shaped loading frame is arranged between the two force transmission modules and makes contact with the two force transmission modules. The wedge-shaped loading frame is used for transmitting a vertical loading force borne by the wedge-sha