Measures to prevent the deviation of the steel structure installation.

    1. The steel structure should be checked and measured at the site, and the deformation super difference should be corrected in time. After the qualification is qualified, it can be installed.

    2, check and calibrate the measurement instrument is good, measurement verification is not expired, to ensure the accuracy of the measuring instrument.

    3, when making the steel structure, we should consider the compression deformation value of the load to the steel structure and the shrinkage deformation value of the joint weld, strictly control the welding shrinkage deformation during construction and pay attention to the change of the foundation settlement.