High-Rise Prefabricated Commercial Steel Structure Buildings
Prefabricated commercial steel structure buildings utilize steel as the primary load-bearing material. Steel components including beams, columns, and trusses are manufactured in factories and assembled on-site using bolts or welding to create the main framework. These systems integrate enclosure, floor support, fire protection, and electromechanical systems for commercial operations and service activities.
Core Characteristics
- Factory prefabrication for quality control
- Rapid on-site assembly and construction
- Large-span flexible spaces without columns
- High seismic resistance and durability
- Mainstream solution for modern commercial real estate
Structural Systems & Specifications
Portal Frame System (Light Steel Structure)
Utilizes H-beams as main beams and columns to form single or multi-span rigid frames, complemented by C/Z-shaped purlins. This is the most commonly used system in commercial buildings.
Parameters: Span 18-36m (optimal), steel consumption 20-50kg/㎡, eaves height 3-12m
Applications: Supermarkets, convenience stores, logistics warehouses, small showrooms
Steel Frame-Bracket System (Multi-Story/High-Rise)
Frame composed of steel columns and beams combined with horizontal/vertical bracing or shear walls to resist lateral forces.
Parameters: Span 6-12m, floor height 3.6-4.5m
Applications: Urban commercial complexes, office clusters, mid-range hotels up to 8 stories
Space Truss/Grid System (Large Span)
Spatial grid formed by steel members connected at nodes, serving both load-bearing and aesthetic functions.
Parameters: Column-free spans up to 100m+
Applications: Convention centers, large shopping mall atriums, airport commercial areas
Component Specifications
| Component Name |
Common Section Forms |
Common Material |
Applicable Span/Height |
Main Force Characteristics |
Typical Applications |
| Steel Column |
H-section, Box column, Circular tube |
Q235B, Q355B |
Floor height 3–12m |
Axial compression, Compression-bending |
Shopping malls, office buildings, exhibition halls |
| Main Beam |
H-section steel, Welded H-section |
Q235B, Q355B |
6–18m |
Bending, Shearing |
Commercial floors and roofs |
| Secondary Beam |
H-section, C/Z-section steel |
Q235B, Q355B |
3–9m |
Bending |
Floor slab support, Roof purlin |
| Roof Purlin |
C-section, Z-section steel |
Q235B, Q355B |
Spacing 1.5–3m |
Bending, Local stability |
Commercial roof, Wall enclosure |
| Portal Frame Inclined Beam |
Variable-section welded H-section |
Q355B |
18–36m |
Compression-bending, Large span |
Supermarkets, exhibition halls, warehouses |
| Truss/Grid Structure |
Steel tube truss, Bolted spherical grid |
Q235B, Q355B |
30–80m+ |
Axial tension/compression |
Exhibition centers, gymnasiums, atrium roofs |
Key Advantages
- Highly Efficient Construction: 80%+ factory prefabrication reduces construction period by 30-40% compared to concrete, enabling commercial operations 3-6 months earlier
- Flexible Space: Large-span column-free spaces up to 100m+ with 6-12m column spacing for adaptable layouts
- Economical & Durable: 30-50% lighter weight reduces foundation costs by 20%+, 50-year main structure lifespan with 25-year corrosion guarantee
- Safe & Reliable: High earthquake and wind resistance with lower damage rates in intensity 8 earthquake zones
- Green & Sustainable: 90%+ steel recycling rate reduces construction waste by 70%, meeting green building standards
Commercial Applications
- Commercial Retail & Complexes: Shopping malls, supermarkets, brand flagship stores, commercial streets
- Business Office Buildings: High-rise offices, creative parks, headquarters buildings
- Hotels & Cultural Tourism: High-end hotels, resorts, conference centers
- Convention & Exhibition: Convention centers, exhibition halls, museums
- Transportation Hubs: High-speed rail stations, airport terminals, subway commercial areas
- Cultural & Sports: Gyms, theaters, performing arts centers, entertainment complexes
- Logistics & Cold Chain: High-standard warehouses, cold chain facilities, e-commerce centers
- Emerging Applications: Data centers, car dealerships, new energy facilities, urban renewal projects