Attention to pay in construction of steel structure
1. Before the steel structure is installed, the components shall be checked according to the detailed list of the components, and the product qualification certificate and design documents shall be checked. The pre assembled components of the factory shall be recorded in accordance with the pre assembled records when assembled on site.
2. The steel structural parts shall be checked for quality after entering the site to confirm whether there is any deformation, damage and defects in the course of transportation, and shall be dealt with in a timely manner in conjunction with the relevant departments.
3, before assembly, the construction team should check the geometric dimensions of components, weld groove, camber, paint and so on, whether it meets the design requirements, and found that the problem should be reported to the relevant departments, in principle, must be completed before lifting.
4, the main quality of construction matters
A, each process to fill out the quality data, quality inspection meets the requirements, the next process can be carried out construction.
B, construction quality problems must comply with the procedures for examination and approval.
The installation of C and truss structure shall be carried out according to the design of the construction organization, and the installation procedure shall ensure the stability of the structure and do not cause permanent deformation.
D before assembly, the component parts shall be checked according to the component list, and the product qualification certificate and design document shall be checked.
When the assembled parts of the E and the factory pre assembled are assembled on the site, they shall be carried out according to the pre assembly record.
F, the components should be clear before the lifting of the surface of oil, snow, mud and dust and other debris.
Before the assembly of the G and truss components, the alignment axis, the basic axis and the elevation of the frame shall be checked, and the basic inspection shall be carried out.
H, structural components installed in place, should be immediately corrected, fixed. The structural components installed on that day shall form a stable space system.
When assembling, installing and correcting I steel structure parts, the corresponding adjustment measures should be taken according to the influence of wind, temperature, sunshine and other factors such as welding environment and welding deformation.
J, welding construction shall be according to the corresponding construction procedures work, before construction should be professional technical personnel preparation work instruction, and make an explanation.
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