Precautions To Be Taken During The Construction of Steel Structures

                                             Zhong He Production Precautions To Be Taken During The Construction of Steel Structures

        1、Before installation of steel structure, the incoming components shall be checked according to the detailed list of components, and the product qualification certificate and design documents shall be checked; when the components which have been preassembled in the factory are assembled on the site, it shall be carried out according to the preassembly record.

　　2、Quality inspection shall be carried out after the steel structure frame components enter the site to confirm whether there is any deformation, damage and defect during the transport process, and shall be handled in time together with relevant famous departments.

　　3、Construction team should check whether the geometric dimension, weld bevel, arching degree, paint, etc. of the components are in accordance with the design drawings before assembling, and should report the problems to the relevant departments, which must be dealt with before hoisting in principle.

　　4、Construction quality main matters

　　A, each process carefully fill in the quality data, quality inspection meets the requirements before the next process of construction.

　　B. The treatment of construction quality problems must be in accordance with the specified approval procedure.

　　C. Installation of truss structure shall be carried out according to the construction organisation design, and the installation procedure must ensure the stability of the structure and not lead to permanent deformation.

　　D. Before assembling, the incoming component parts shall be checked according to the detailed list of components, and the certificate of product conformity and design documents shall be checked.

　　E. When the components pre-assembled in the factory are reassembled on site, they shall be assembled according to the pre-assembly record.

　　F. Before hoisting, the members should be clear of the sundries such as oil, ice, snow, mud, sand and dust on their surface.

　　G. The positioning axis, foundation axis and elevation of tyre frame shall be checked before assembly of truss members, and foundation testing shall be carried out.

　　H. The structural members shall be corrected and fixed immediately after they are installed in position. The structural members installed on the same day shall form a stable space system.

　　I. When assembling, installing and calibrating the steel structure frame components, corresponding adjustment measures shall be taken according to the influence of wind, temperature difference, sunshine and other external environment and welding deformation and other factors.

　　J. Welding construction shall be operated according to the corresponding construction regulations, and the operation instruction shall be prepared by professional technicians and handed over before construction.

Writen by ZhongHe Engineer

Tianjin ZhongHe Weiye Machinery Manufacturing Co.,Ltd.