Welded Steel Box Columns and Beams for Structural Buildings

Welded steel box beams and columns are widely used in steel structure projects. Compared to H-shaped steel columns which have only one strong axis, box columns provide strong axes in both X and Y directions. With stiffening plates at nodes, they form strong node domains with superior force conditions compared to rolled H-beams. We offer customized fabrication to meet specific project requirements.

1. Using the cover plate as assembly reference, partition plates and side web assembly lines are marked according to construction drawings
2. Upper cover and partition assembly on tire mold with welding completion before next process
3. Web assembly after flatness verification, with middle stiffener positioning first
4. Complete box structure assembly after U-shaped structure completion with web edge correction
5. Final separator side welding using electroslag pressure welding with specialized equipment

Note: Can be processed according to drawings including shot blasting, punching, stiffening, and painting processes.

Our facility features three steel structure production lines equipped with flame cutting machines, H-section steel assembly machines, gantry welding machines, shot-blasting machines, and paint spray booths. We have dedicated space for fabrication of heavy-duty and large structural steel components.

• Structural steel fabrication, painting, galvanizing, pre-assembly
• Design, fabrication and installation of prefabricated steel structures
• Shop drawing development based on architectural and construction drawings
• Engineering consulting services

• Light gauge prefabricated steel warehouses, workshops, sheds
• Heavy industrial steel warehouses and workshops
• Steel structures with crane systems
• Truss roof steel warehouses and workshops
• Steel frame cold storage facilities
• Prefabricated steel houses, villas, and high-rise buildings
• Car parking structures and garages
• Structural steel fabrication for heavy industrial applications

• Professional design team for customized solutions
• Skilled fabrication team with advanced equipment and project-specific schedules
• One-stop service with integrated project proposals
• Quality control team ensuring product and service compliance
• Comprehensive after-sales service including maintenance support