Huangshan District steel structure engineering quality inspection and identification level: The beams of the roof structure have 8 mid-span deflection deformations exceeding the relevant design specifications, yet they do not significantly affect normal use; they are rated as B-grade based on the deformation criteria, with the rest of the steel roof structure beams rated as A-grade. The ridge of axes 12 and 13 has experienced long-term deformation due to ground subsidence, yet it does not significantly affect normal use; it is rated as B-grade based on the deviation criteria, with the rest of the steel components rated as A-grade. The surface anti-corrosion coating of the steel components is intact, and no severe corrosion of the steel components has been found to weaken the cross-sectional material properties; it is rated as A-grade based on the corrosion and anti-corrosion criteria.

Factory safety inspections include the following basic contents:
1. Investigate the property's usage history and structural system.
2. Measure the house's tilting and uneven settlement conditions.
3. Document the damaged areas, extent, and scope of the factory's main structure and load-bearing components using methods such as text, drawings, photos, or videos.
4. The testing items for the mechanical properties of the factory building structure materials should be determined based on the requirements of the structural bearing capacity calculation.
5. As necessary, establish a calculation model based on the characteristics of the building structure. According to the actual mechanical properties of the building materials and the actual loadings, verify the safety reserve of the building structure in accordance with current specifications.
6. Analyze the cause of the factory damage.
7. Comprehensively assess the damage condition of the factory building structure to determine the level of danger of the building.
Factory safety inspections should be conducted in accordance with the "Standard for Identification of Dangerous Buildings" CJ13. When conducting safety inspections on industrial factories, they should also comply with the provisions of relevant standards such as the "Standard for Identification of Industrial Factory Qualities" GBJ144-90.

What documents are required for a factory building inspection report and structural assessment in Wuhan?
1. Prepare the necessary factory construction information materials. Before drafting the report for the client, ensure all relevant factory construction documents are in place. These materials include the site investigation report for the factory, design plans, construction records, and acceptance documents from relevant parties upon completion, as well as other pertinent information.
2. Verify relevant information during the factory construction process. During this inspection, cross-check the physical structure of the factory with the design drawings, examine the structural layout and construction connections, and conduct a thorough check for any tilting or uneven settlement of the factory, providing the results of the inspection.
3. When issuing a factory structure inspection and appraisal, it should also be checked for cracks, displacements, and deformations in the components. Detailed records of any issues found should be made through recruitment, drawings, and other means.
Additionally, there are many details to be meticulously noted by Wuhan's factory inspection agency when issuing structural inspection and certification reports for factories. This is due to the responsibility it holds for both the property owner and the nature of the work.