This invention is geared towards providing an assembled steel structure which would improve the assembly efficiency in the building assembly process, improve the stability of the assembly structure and meet the requirements of changeable assembly modes. Due to the usefulness of the invention, its advantages amongst others includes that the assembly efficiency in the building assembly process is improved, the stability of the assembly structure is improved, and the requirements of changeable assembly modes are met; the first fixing piece and the connecting piece are detachably connected, and when only the first fixing piece is needed to install steel, the connecting piece and the second fixing piece can also be detached, thus meeting various use modes.
ASSEMBLED STEEL STRUCTURE FOR BUILDING
