Prefabricated Steel Structure Building with Portal Frame Design, 30-50 Year Life Span, and 20+lb/sq.ft Roof Load
Our high-strength prefabricated steel structure warehouse provides a comprehensive solution with rapid delivery and expert installation guidance. This innovative design integrates both internal support and external enclosure components to ensure exceptional durability and functionality.
| Attribute | Value |
|---|---|
| Application Fields | Warehouse, Multi-building, Workshops & plants, Hospital, School, Office, Apartment |
| Drawing Design | AUTOCAD, SOLIDWORKS, TEKLA |
| Maximum Roof Load (lb./sq.ft) | 20+ lb/sq.ft |
| Raw Steel Material | Q235B, Q355B, ASTM A36 |
| Frame Type | Portal Frame |
| Design Parameter | Wind Load, Snow Load And Earthquake |
| Working Scope | Design, Fabrication, Installation |
| Life Span | Around 30~50 Year |
| Surface treatment | 1. Painting; 2. Galvanized |
| Standard | GB, ASTM, EN, ISO, AS/ANS |
The steel frame features a robust portal design, comprising steel columns, beams, and bracing. This configuration creates a fully enclosed building capable of withstanding severe weather conditions, including strong winds, heavy rain, and snow.
In our workshop, metal components are produced through a controlled process of cutting, welding, drilling, and painting before being delivered to the construction site. Each component is bolted for assembly, enabling quick and convenient installation that helps significantly reduce labor costs.
- Tension Members: Designed to withstand tensile forces
- Compression Members: Engineered to support compressive loads
- Bending Members: Crafted to resist bending stresses
- Combined Stress Members: Capable of handling multiple types of stress
- Connections: Ensure structural integrity and stability
| Dimension | Length * width * eave height, roof slope |
|---|---|
| Type | Single/double/multi-slope; Single/double/multi-span; Single/double/multi-floor |
| Foundation | Concrete and steel foundation bolts |
| Column and Beam | Hot rolled or welded H steel Q355B, high strength bolts connection, straight or variable cross-section |
| Bracing | X or V type bracing made from angle steel or pipe |
| C/Z Purlin | Q235B C/Z section steel (C160-300 or Z160-300) |
| Roof/Wall Panel | Single colorful corrugated steel sheet or sandwich panel with EPS, rock wool, glass wool, or PU insulation |
| Accessories | Skylight belts, ventilators, down pipes, gutters, doors, windows |
| Surface Treatment | Painting or hot dip galvanized |
| Package | Nude or packed on steel pallet in 40'HQ/OT containers |
We implement rigorous quality control measures throughout the project lifecycle, including:
- Material inspections before and after fabrication
- Precision measuring, cutting, and welding
- Accurate hole and cleat placement
- Proper packaging and loading sequence
- On-site erection when required
Qingdao Tsin Steel Structure Construction Technology Co., Ltd. provides integrated solutions for steel structure workshops, warehouses, and multi-storey buildings, including:
- Layout consulting and structural design
- Fabrication and delivery solutions
- Installation guidance
Our production capacity reaches 2,500 tons per month across 20,000m² of workshop space (30,000m² total factory area). We operate complete production lines for H steel, C/Z purlins, and various steel sheet and sandwich panels.
Who are we?
Based in Shandong, China since 2025, we serve clients in South America, Africa, Oceania, and other global markets with a team of 5-10 professionals.
How do we guarantee quality?
Pre-production samples and final inspections before shipment ensure consistent quality standards.
What products do we offer?
Steel Structure Warehouses, Workshops, Buildings, Poultry Houses, and Prefab Houses.
Why choose us?
20+ years experience providing complete steel structure solutions with integrated design, fabrication, and installation services.
What services do we provide?
We accept FOB, CFR, CIF, EXW delivery terms and T/T, L/C, Cash payments in USD, EUR, AUD, CNY.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.