Multi-Floor Steel Frame Office Building Prefab Structure Q235B Q355B

Multi Floors Steel Frame Office Buildings / Prefab Steel Structures Buildings. The major structure of this three floors is consisted of welded H-section steel beam and column. Galvanized steel floor decks is used to support floor concrete. Connection of the steel frame structure is by bolts.

The steel structure building has the advantages of wide span, high strength, light weight, low cost, temperature protection, energy saving, beautiful appearance, short construction time, good insulation effect, long service life, space efficiency, good seismic performance, and flexible layout.

We can provide layout drawings, 3D Tekla models, and construction drawings according to your requirements.

Our steel structure fabrication factory covers 35,000㎡ with 20,000㎡ workshop area. We are equipped with:

• Three light/heavy H steel production lines
• BOX production lines
• C/Z purlin production lines
• Various types of profiling steel sheet machines
• Advanced equipment including plasma cutting machines

• Thickness tolerance <0.25mm
• Yield and tension strength testing in-house
• Third party inspection certificate
• Supply traceable mill certificate

• 100% testing dimension tolerance <1mm
• 20% sample welding line ultrasonic testing (no fault, full penetration)
• 20% magnetic powder testing (no bubble, no defect, smooth and full)
• Supply third-party inspection assistance

• Shot blasting grade Sa. 2.5 (Metal luster, no rust, no oil dirt, no welding spatter)
• Roughness >75um
• Paint primer within 5 hours after shot blasting
• Holiday-free coatings, smooth, no dust
• Dry Film Thickness (DFT) >75UM
• Pre-assembly testing the connection details

1. We provide construction drawings before installation
2. Our engineer provides on-site guidance for installation

All structure components, panels, bolts and accessories are well packed with standard packaging suitable for ocean transportation and loaded into 40'HQ containers.