Quality Control in Welded Steel Beams and Steel Supports for Pedestrian Bridges

The structural integrity of pedestrian bridges depends on the quality and precision of their welded steel beams and supports. These components are manufactured using submerged arc automatic welding in a controlled factory environment, following strict assembly and welding processes. Quality control measures, including flaw detection and film inspection, ensure that the final structure meets industry standards.

Submerged Arc Automatic Welding for Superior Strength

Submerged arc automatic welding (SAW) is widely used in the fabrication of welded steel beams and supports due to its high efficiency and strong, defect-free welds. This process involves:

- Continuous, Deep Penetration Welding – Ensures strong and uniform welds.

- Minimal Weld Defects – Reduces porosity and cracking in the welded joints.

- High Production Efficiency – Suitable for mass production of structural components.

Strict Quality Control Measures

To ensure the safety and durability of pedestrian bridges, the manufacturing process follows the ISO9000 quality system, which includes:

1. Weld and Material Inspection – All welds and raw materials undergo rigorous flaw detection and film inspection.

2. Precision Assembly – Components are assembled according to strict design specifications.

3. Rust Removal and Surface Treatment – After assembly, rust removal and protective painting are carried out as per design requirements.

Importance of ISO9000 Quality System Compliance

Following the ISO9000 quality system guarantees:

- Consistent Engineering Quality

- Compliance with Industry Standards

- Enhanced Structural Safety and Longevity

The use of welded steel beams and supports in pedestrian bridges requires precise welding techniques, stringent quality control, and adherence to international standards. By following the ISO9000 quality system, manufacturers ensure that pedestrian bridges are not only structurally sound but also built to last.