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Prefabricated Multi Floor Steel Structure Construction Building for Steel Structure Warehouse/Hotel/Office/Apartment Building
China Prefabricated Multi-Floor Steel Structure Building & Steel Mezzanine Platform
Advantages:
| Items | Specification Details | |
|---|---|---|
| Main Steel Frame | Column | Q235B, Q355B, Q345B Welded or Hot Rolled H Section Steel |
| Beam | Q235B, Q355B, Q345B Welded or Hot rolled H Section Steel | |
| Secondary Frame | Purlin | Q235B, Q345B, Q355B C and Z Purlin |
| Knee Brace | Q235B Angle Steel | |
| Tie Beam | Q235B Circular Steel Pipe | |
| X Brace | Q235B Round Bar, Angle Steel | |
| Sag Rod | Q235B Round Bar or Steel Pipe | |
| Maintenance System | Roof Panel | Glass Fiber / Rock Wool / EPS / PU Sandwich Panel or Single Steel Sheet |
| Wall Panel | Sandwich Panel / Corrugated Steel Sheet | |
| Accessories | Window | Vent Window / Aluminum Alloy Window / PVC Window / Sandwich Panel Window |
| Door | Sliding Door / Rolling Metal Door / Aluminum Alloy Swing Door | |
| Rainspout | PVC | |
| Live Load on Roof | In 120kg/Sqm (Color steel panel surrounded) | |
| Wind Resistance Grade | 12 Grades | |
| Earthquake Resistance | 8 Grades | |
| Structure Usage | Up to 50 years | |
| Finishing Options | Vast array of colors available | |
| Surface Treatment Options | Two-Layer Epoxy Paint or Hot-Dip Galvanized | |
With more than 15 years of exporting experience, our steel structures are designed in compliance with the following international standards:
Our steel structure buildings are ideal for industrial warehouses, hangars, and portal frame buildings. Below are the popular sizing options:
| Item | Popular Size | Popular Height | Coverage | Gate Size |
|---|---|---|---|---|
| Steel Warehouse | 20x30m | 5m | Single corrugated steel sheet | 4x4.5m |
| Steel Workshop | 20x50m | 6m | Insulated roof with single steel sheet wall | 4.5x5m |
| Farm Storage | 16x36m | 4m | Single steel sheet or roof only | 4x3.5m |
When it comes to commercial-style buildings, steel is the most reliable, efficient, strong, and sturdy solution. It saves time on maintenance and is guaranteed to last. When building a steel warehouse or workshop, integrated multi-floor offices can be built alongside or inside the main structure.
| Parameter | Details |
|---|---|
| Application | Steel warehouse, workshop, hangar, sports hall, shopping mall, agricultural farm buildings, etc. |
| Clear Span (Width) | 6~50m without middle column |
| Height | 2~20m |
| Length | Customizable to your requirements |
| Material Grade | Q345(S355JR) or Q235(S235JR) steel or as requested |
| Column & Rafter | Welded or Hot rolled H-beam |
| Tie Beam | Round pipe or square tube |
| X Brace | Round steel bar, angle steel |
| Purlin | C purlin, Z purlin (Thickness: 2.0mm, 2.2mm, 2.5mm, 3.0mm) |
| Sag Rod | Steel round bar, angle steel, C purlin, etc. |
| Wall & Roof Coverage | Single corrugated steel sheet (0.12~1.2mm); EPS / Rock wool / Glass fiber / PU sandwich panel (Thickness: 50mm, 75mm, 100mm, 150mm, 200mm) |
| Gate | Electric roller shutter door / Sliding door |
| Exit Door | Plastic steel / Aluminum alloy swing door / Steel swing door |
| Window | PVC or Aluminum alloy frame sliding / top-hung window |
| Surface Treatment | Shot blasting with rust preventative rich-zinc epoxy paint or hot-dip galvanized |
| Certificate | ISO9001, CE EN1090 EXC2, IWE, etc. |
| Quality Control | Third-party inspections (SGS, QIMA, BV) accepted |
| Crane option | 5MT, 10MT, 15MT, etc. |
| Accessories | Gutter, flashing trimming cover, downspout, ventilator, skylight belt, bolts, anchor bolts, etc. |
| Package | Main steel frame loaded in 40'OT; roof & wall panels loaded in 40'HQ |
| Main Steel Structure Frame | Strut (Tie Beam) on Eave/Ridge | X Brace for Roof and Wall |
|---|---|---|
|
Material: Welded or hot-rolled H-beam Grade: Q355 (S355JR) Surface: Hot-dip galvanized or anti-rust paint Usage: Forms the primary frame of the building. |
Material: Round pipe or square tube Grade: Q235 (S235JR) Surface: Hot-dip galvanized or anti-rust paint Usage: Prevents longitudinal structural movement. |
Material: Steel round bar or angle steel Grade: Q235 (S235JR) Surface: Hot-dip galvanized or anti-rust paint Usage: Secures the stability of the entire structure. |
| Purlins | Single Sheet Cladding | Sandwich Panels & Insulation |
|---|---|---|
|
Material: C/Z purlin Size: 80~300mm (1.8~3.0mm thickness) Surface: Galvanized zinc coating Usage: Supports cladding and panel installation. |
Color: Optional RAL colors Thickness: 0.13-0.8mm (V840, V900 types) Usage: Roof or wall coverage Flashing: Covers joints to prevent leaks. |
Structure: Double PPGI steel layers with insulation core Core Material: EPS, Rock wool, Glass wool, PU/PIR Advantage: Fireproof, thermal insulation, lightweight, easy install. |
| Industrial Gates | Exit/Swing Doors | Windows & Vent Shutters |
|---|---|---|
|
Sliding Door: Steel frame + corrugated sheet or sandwich panel. Roller Shutter: 0.8mm thick electric wind-resistant door. Canopy: Protective shelter above entry points. |
Swing Door: Aluminum alloy, steel, or fire-rated security doors. Features: Customizable colors, glass inserts, and handles. |
Material: PVC or Aluminum alloy frame. Glass: 4mm to 6mm normal or tempered glass. Type: Sliding, vent, or top-hung options. |
| Ventilation Facility | Joint Bolts & Fasteners | Sealant & Accessories |
|---|---|---|
|
Type: Natural power wind ventilators. Material: Stainless steel. Sizes: D=500mm, 1380x1380mm, etc. |
Grades: 10.9S, 8.8S, 4.8S. Type: High-strength bolts for frame joints, foundation anchor bolts, and self-tapping screws for sheet cladding. |
Silicone Glue: Used at flashing joints to prevent water and air leakage. |
To help us design and quote your steel structure, please provide the following details:
State-of-the-Art Steel Fabrication Process
Slitting Cutting: Avoids traditional flame cutting defects, such as uneven edges, roughness, cracks, and dregs.
Laser Cutting: Highly accurate cuts ensure component quality, avoiding deformation and reducing weld porosity.
3D H-Beam Drilling Machine: Completes web and flange drilling in three directions simultaneously, significantly improving alignment accuracy during bolt assembly.
Our factory operates 2 complete steel structure production lines with an annual capacity of 30,000 tons of welded H-beams, 8,000 tons of C/Z purlins, 100,000 square meters of sandwich panels, and 8,000 tons of corrugated steel plates.
Our products are manufactured under rigorous QA/QC protocols. We hold patents and internationally recognized certifications including:
Main structural steel frames are securely bundled and loaded into 40' Open Top (OT) containers. Roof panels, wall panels, and accessories are safely loaded into 40' High Cube (HQ) containers to prevent transit damage.
We provide complete detailed assembly drawings and step-by-step online guidance. For overseas projects, professional technical engineers can be sent to supervise the installation on-site.
