Auxiliary device for steel structure installation

The invention relates to the technical field of steel structure installation, and discloses an auxiliary device for steel structure installation, the auxiliary device comprises a concave plate, first adjusting assemblies extending to the inner side of the concave plate are arranged on the two sides of the concave plate, and the device clamps and limits the two sides of a steel structure through the first adjusting assemblies; according to the device, the electromagnet is arranged on the first adjusting assembly, a heavy steel structure can be clamped and limited conveniently, the clamping force of the first adjusting assembly on the steel structure can be adjusted after the electromagnet adsorbs the steel structure, and the steel structure can be conveniently moved and butt-jointed, the steel structure is driven to move through the second adjusting assembly, and the electromagnet adsorbs the steel structure to drive the steel structure to move and butt-jointed; in the moving process of the connecting plate an