The technology needed to install the steel structure:

1. Before steel structure equipment, all kinds of records and statements such as the factory certificate of components, data test statement, weld nondestructive inspection side statement, etc. shall be checked to see whether the appearance of components meets the planning requirements, and any problems found shall be corrected immediately.2. Fabricate the steel structure installation flow chart, and carry out the equipment according to the flow chart. Before the equipment, check the accuracy of all the anchor bolts embedded, and timely correct the spatial orientation and planning diagram if there is someone out, so as to ensure the accuracy of the anchor bolt orientation.3. The components and equipment shall be carefully planned to form a rigid body quickly, so as to keep the equipment stable and eliminate the faults during the installation of steel structure. 4. Necessary checking calculation shall be carried out for the hoisting of components. For the components with small lateral stiffness, methods shall be adopted to prevent distortion and damage 5. During the installation of column or Guiyang steel structure, equipment beam and support shall be timely provided, and cable wind rope shall be added for temporary fixation if necessary.6. For the equipment of steel column, pay attention to the influence of temperature difference on the perpendicularity of components, adjust the side amount to the perpendicularity of the first standard column, and recheck other columns 7.In column equipment, the positioning axis of each column must be directly led up from the control axis on the ground, and the top axis of the next column shall not be used as the positioning axis of the last column 8. At the steel structure installation site, the welding environment, welding position, high altitude operation, air temperature and humidity affect the hapless factors, which are easy to cause weld defects. Therefore, it is necessary to adopt corresponding methods to defeat the influence of these hapless factors. Unqualified weld rework and repair shall not exceed twice 9. It is necessary to calibrate the torque wrench used for high-strength bolts before use. After use, it should be calibrated. Once it is found that the error of torque calibration exceeds the allowed plan, the bolts screwed by the wrench are all unqualified. After the final tightening of high-strength bolts, it should be checked. The nuts can be knocked one by one by using the small hammer knock method.The torque shall also be inspected by sampling 10. After the completion of steel structure installation, the vacant space between the column base plate and the foundation top surface shall be grouted twice in time to make the base plate and the foundation surface touch tightly