Multifunctional steel structure and manufacturing method thereof

The invention discloses a multifunctional steel structure and a manufacturing method thereof, and belongs to the technical field of steel structure machining, the multifunctional steel structure comprises a steel column of a hollow structure and a plurality of sleeve plates transversely arranged outside the steel column, the sleeve plates are also of hollow structures, and the side faces of the sleeve plates are connected with vertical supporting plates; a plurality of triangular plates with the lifting and stabilizing functions are connected between the vertical supporting plates and the sleeve plates, a plurality of L-shaped assembling plates matched with the steel columns are connected to the side faces of the vertical supporting plates, the assembling plates of every two adjacent vertical supporting plates are arranged in a staggered mode, and the assembling plates are fixedly connected with the steel columns through two fixing bolts. The vertical supporting plate is fixedly connected with the steel colum