Macheng Bolted Sphere Grid Non-Destructive Testing Project, as a third-party Macheng Bolted Sphere Grid inspection agency, we are committed to multi-field certifications including steel structure inspection, Macheng steel structure safety inspection, grid steel structure inspection, steel material testing, and factory steel structure safety assessment. Our company provides fast report issuance and offers welding inspection project safety certification solutions and corresponding services.

The increasing popularity of Ma City steel structure buildings has set high requirements for non-destructive testing. It not only necessitates that inspectors strictly adhere to the procedures for non-destructive testing operations, demonstrating a rigorous, scientific, and conscientious work ethic in overseeing the steel structure buildings to ensure safety, but also calls for inspectors to utilize their professional expertise to integrate various non-destructive testing techniques, completing the testing tasks efficiently while maintaining safety guarantees.

Typical inspection steps for steel structural inserts include:
On-site investigation
2. Review of architectural and structural drawings
3. Structural Integrity Inspection
4. Conduct load-bearing calculations and analysis based on the decoration and renovation plan for the steel structure interlayer area.
5. Propose鉴定conclusions, handling opinions, and recommendations.
6. Provide a safety assessment report for the second floor steel structure interlayer.

Macheng bolt ball net frame non-destructive testing items:
Gather relevant construction documents, primarily including geological and geotechnical investigation reports, design drawings, construction logs, and certificates of material compliance.
2. Inspect the mechanical properties of steel according to the requirements of "Technical Specifications for Building Structure Testing" (GB/T50344—2004).
3. Conduct concrete strength testing in accordance with the requirements of "Technical Specification for Structural Testing of Buildings" (GB/T50344—2004), and perform carbonation depth testing in representative areas of the concrete.
4. The Macheng bolted ball net framework is inspected in accordance with the "Code for Construction and Acceptance of Steel Structure Engineering" (GB), and considering the actual conditions of the inspection site, an ultrasonic thickness gauge is used to measure the steel thickness.
5. In accordance with the requirements of the "Code for Construction and Acceptance of Steel Structure Engineering" (GB), and considering the actual conditions of the inspection site, manual testing methods are employed to inspect the welding of steel frame seams in steel structure components with all-welded-through first and second-class seams, and to check for surface defects such as air holes, slag, arc pit cracks, etc.
6. Component appearance inspection, corrosion coating thickness testing, fire retardant coating thickness testing, check for the integrity of the protective structure, and if it meets the design requirements.
7. Any testing requirements beyond the standard inspection are to be agreed upon and implemented in a written contract between the principal and the agent.
Structural steel, as one type of building structure, is widely used in industrial factories for its simple construction, energy-saving and environmental protection, and cost-effectiveness. Compared to other building structures, structural steel may have reduced durability, compressive strength, and usability. The design and construction of steel structure factories are strictly based on load-bearing principles; it is not permissible to arbitrarily add loads or floors to the steel structure factory, nor can the factory's usage capabilities be changed at will. Vibration must also comply with design specifications to prevent the lower-level structure, floors, and walls from being unable to bear excessive pressure, potentially leading to safety hazards. Therefore, it is necessary to conduct load-bearing inspections of steel structure factories before the factory goes into production.