Welding-free steel frame assembly structure

The utility model discloses a welding-free steel frame assembly structure which comprises a plurality of porous steel angles (1), connectors (4) and embedded parts (6). The section of each porous steel angle (1) is L-shaped, a plurality of holes are formed in two side surfaces of each porous steel angle (1), and each two corresponding porous steel angles (1) are intersected with each other and are fixedly connected with each other by a bolt (5) to form a basic framework unit structural part; one end of each porous steel angle (1) is fixedly connected with the corresponding embedded part (6) by a bolt, the embedded parts (6) are fixed to a building base course by main bolts (7), and the multiple porous steel angles (1) are fixedly connected with one another by bolts and the connectors (4). The welding-free steel frame assembly structure has the advantages that welding can be omitted, connection among decorative plates of the welding-free steel frame assembly structure and the base course with the porous steel angles can be optionally adjusted owing to a plane dimension adjusting characteristic of the multiple holes, accordingly, the welding-free steel frame assembly structure can be detached, modified and assembled at any time during construction, the mounting speed can be increased, the welding-free steel frame assembly structure can be corrected flexibly and conveniently, and the adjustability and the accuracy of the welding-free steel frame assembly structure can be improved; the construction period can be shortened, and purposes of environmental protection and energy conservation can be achieved.