1. Pre-construction preparation. The main organization of technical personnel to carry out construction design and give supporting plans, as well as for the arrangement of temporary facilities, do a good job of coordination and communication.

2、Construction alignment. According to the design requirements, the drawings with the civil engineering unit will be the elevation line, axis, etc. Check the accuracy and make a good record, if the entity found to be inconsistent with the drawings should be corrected in a timely manner, as far as possible to minimize the error.

3, foundation buried. Carefully check the size, length and position of the bolts, and fix the buried bolts.

4、Material processing and production. Including the steps of material drawing list, sample release, material placement, welding, rust removal, painting, acceptance and so on.

5、Steel structure installation. Steel structure installation should conform to the axis of foundation and foundation ground elevation, adopting the method of lifting by parts, lifting steel columns first, and then lifting steel beams after correction and fixing.