Hanshan District Factory Safety Inspection and Appraisal Project

Hanwan District Factory Safety Inspection & Appraisal Projects, Wuhan Factory Inspection Institution Inspection Items: Focuses on the three combined projects of load-bearing structural system, structural layout and support system, and enclosure structural system. Comprehensive factory appraisal is conducted based on the structural system, process layout, structural status, usage conditions, and appraisal objectives, dividing the entire factory, structural, or section systems into one or more appraisal units for comprehensive evaluation.

Factory safety inspection and certification object:
1. At the factory surrounding the construction site, to assess the safety before and after construction, determine the extent of damage, and analyze the causes, a safety evaluation of the factory is required both before and after the construction.
2. When the temporary factory is in need of an extended usage period, a safety assessment of the factory is required to provide recommendations for the subsequent years of use.
3. The factory has reached a certain age and shows signs of aging, such as cracks or tilting in the main structure, which threaten the building's safety. A safety assessment of the factory is required.
4. Alteration of the factory's usage function, resulting in a significant increase in load, may pose safety risks. A safety assessment of the factory is required.
5. Natural disasters (such as floods, fires, typhoons, earthquakes) have occurred, affecting the normal operation of the factory; a safety assessment of the factory is required.
6. Other situations that threaten the safety and normal operation of the factory.

Test Results Summary
1. The building is used as a light industrial workshop, with non-corrosive environment, no vibration loads, and no high-temperature conditions.
2. The main structure is constructed using fully cast-in-place reinforced concrete, with the arrangement of beams and columns in accordance with the drawings.
3. The building shows no overall tilt or uneven settlement deformation, and the main components have no apparent quality defects affecting their load-bearing capacity.
4. The actual dimensions of the beams and columns in Wuhan's factory inspection institution match the design drawings.
5. The column concrete estimated strength in Wuhan factory is 14.4MPa, and the beam concrete estimated strength is 20.1MPa.
6. The measured quantity and arrangement of steel reinforcement in beams and columns are in accordance with the design drawings. Identification Conclusion: The structural calculation results show that the frame columns and beams have sufficient bearing capacity, meeting the requirements of the "Building Seismic Evaluation Standard"; the safety of the foundation, superstructure, and protective system reaches Grade A standard; the comprehensive safety grade of the building is Grade A, and its structural safety meets the requirements for normal use, and no secondary structural safety inspection and identification is required. Treatment Suggestions: Ensure normal use and maintenance of the building in its future use; it is recommended to limit the floor loading of the factory building to below 3.5 kN/m2. When the loading reaches this value, structural reinforcement should be carried out. Do not arbitrarily construct partition walls, add floors, or change the building's use function. When adding floors or changing use functions are necessary, entrust a unit with design qualifications to review the structure and provide treatment opinions. Considering the durability of the building, it is recommended to seal visible temperature contraction cracks as soon as possible.