Laminated plate-type sandwich insulation shear wall with tie bolts and installation method thereof

A laminated plate-type sandwich insulation shear wall with tie bolts, comprising a prefabricated external wall, a sandwich insulation layer, a cast-in-place concrete layer, a prefabricated internal laminated wall board, and an external wall connector, wherein a plurality of tie bolts are disposed between the prefabricated external wall and the prefabricated internal laminated wall board, and each said tie bolt consists of a cylinder head screw, a gland, a sleeve, and a tie screw casing;

• the cylinder head screw includes a cylinder head and a tie screw, and an internal hexagonal groove is formed in a head of the cylinder head screw;
• the gland is embedded into the prefabricated external wall and has an opening located on an internal wall surface of the prefabricated external wall, and internal gland threads are arranged in the gland;
• the sleeve is embedded into the prefabricated internal laminated wall board and has an internal wall provided with internal sleeve threads, an opening in one side of the sleeve is located on an internal wall of the prefabricated internal laminated wall board, and an opening in another side of the sleeve is located on an external wall of the prefabricated internal laminated wall board;
• a round pit corresponding to the cylinder head is formed in the opening, located on the external wall of the prefabricated internal laminated wall board, of the sleeve;
• the tie screw casing is arranged outside the tie screw of the cylinder head screw and has two ends which are respectively in close contact with an edge of the opening of the gland and an edge of the opening, located on the internal wall of the prefabricated internal laminated wall board, of the sleeve;
• and the sandwich insulation layer is attached to an internal surface of the prefabricated external wall, the cylinder head screw is screwed to penetrate through the sleeve and then penetrates through the tie screw casing to be finally screwed into the gland so that the prefabricated external wall and the prefabricated internal laminated wall board are connected, and the cast-in-place concrete layer is formed between the sandwich insulation layer and the prefabricated internal laminated wall board.