Q235B Q355B Prefab Steel Frame Building For Warehouse Workshop Custom Design
Product Specifications
| Application Fields |
Offices, shopping malls, and hotels, Apartments or mixed-use buildings, Hospitals, schools, and government buildings |
| Maximum Roof Load |
20+ lb/sq.ft |
| Drawing Design |
AUTOCAD, SOLIDWORKS, TEKLA |
| 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 |
30-50 Years |
Product Overview
Multi-story steel structure buildings are high-rise or mid-rise structures (typically 3-20+ floors) using steel as the primary structural framework. They combine strength, efficiency, and design flexibility, making them a popular choice for diverse urban and commercial needs.
Key Performance Traits
- High Strength-to-Weight Ratio: Steel's strength allows for lighter yet robust frameworks, reducing foundation loads while supporting multiple floors and heavy usage.
- Design Flexibility: Enables open floor plans, large spans, and creative architectural features, maximizing usable space and aesthetic appeal.
- Rapid Construction: Prefabricated components shorten build times by 20-40% compared to concrete structures.
- Durability & Resilience: With proper corrosion protection, steel resists environmental wear, fire, and seismic activity, ensuring a long lifespan.
- Sustainability: Steel is 100% recyclable, and its lightweight nature reduces material waste while supporting energy-efficient upgrades.
Technical Specifications
- Dimension: Length x width x Eave height, roof slope
- Type: Single slope, double slope, multi-slope; Single span, double-span, multi-spans; Single floor, double floors, multi-floors
- Foundation: Concrete and steel foundation bolts
- Column and Beam: Hot rolled or welded H steel Q355B, all high strength bolts connection
- Bracing: X or V type bracing made from angle steel or steel pipe
- Purlin: Q235B C/Z section steel with size C160-300 or Z160-300
- Roof and Wall Panel: Single colorful corrugated steel sheet or sandwich panel with insulation
- Surface Treatment: Painting or hot dip galvanized
Construction Advantages
The portal steel frame and external enclosure structure constitute an enclosed building structure with sufficient strength to withstand severe weather conditions. Components are processed in the workshop and then transported to the construction site, requiring only bolt fixing for quick and labor-saving installation.
Quality Control
We deploy extensive quality control measures including inspections of all materials prior to and following fabrication. Our highly trained fabrication and welding staff deliver services designed to meet your specific project requirements:
- Measuring, cutting and welding the steel
- Placing the holes and cleats in the correct position
- Packaging and carefully loading in the right sequence
- Dispatching to site and erecting if required
Installation
Method 1: We provide shop drawing before installation.
Method 2: If you still don't know how to install, We will teach you the installation in our factory. when necessary, we will assemble a sample steel structure building for you.
Packing & Loading
All the structure components, panels, bolts and sort of accessories will be well packed with standard package suitable ocean transportation and loaded into 40'HQ.
All the products are loaded at the loading site of our factory using crane and forklift by our skilled workers, who will prevent the goods to be damaged.
Why Choose Us?
- Professional design team: We could design the drawing as your requirement or calculate the steel quantity based on your drawing.
- Skilled fabrication team: Advanced equipment and independent production schedule for each project.
- One-stop service: Integrated proposal for your project based on extensive experience.
- Quality assurance: Professional QC team guarantees production and service meet your requirements.
- After-sales service: Maintenance support for insulation and steel components as needed.
Frequently Asked Questions
Q1: Can I visit your factory before placing an order?
A: Yes, we welcome factory visits. We can arrange airport pickup from Qingdao Airport and hotel booking services.
Q2: How do we cooperate on a project?
A: Our process includes: 1) Receiving your project details, 2) Providing free design services, 3) Contract signing with 30% deposit, 4) Design confirmation, 5) Production with final payment before shipment, 6) Optional installation services.
Q3: What is the price range?
A: Prices vary based on material quality, size, and design complexity, typically ranging from $19 to $100+ per square meter.
Q4: Do you provide installation services?
A: We provide detailed construction drawings and manuals. On-site installation services are available with costs covered by the buyer.
Q5: What is the delivery time?
A: Typically 30 days after receiving deposit, with partial shipment available for large orders.
Q6: What anti-rust treatments are available?
A: Options include normal anti-rust paint, epoxy zinc primer, hot-dip galvanization, hot-dip galvanization+PU finish, or stainless steel structures.
Q7: How is quality controlled?
A: Our products meet CE EN1090 and ISO9001:2008 standards, with quality inspection reports provided for all materials and processes.
Q8: Why are your prices higher than competitors?
A: We use premium steel from major mills, smarter designs for safety and economy, durable high-grade materials (lasting 10-20 years), and avoid cost-cutting measures that compromise long-term value.
Project Specification Form
| 1 |
Location (where will be built?) |
_____country, area |
| 2 |
Size: length*width*height |
_____mm*_____mm*_____mm |
| 3 |
wind load (max. wind speed) |
_____kn/m2, _____km/h, _____m/s |
| 4 |
snow load (max. snow height) |
_____kn/m2, _____mm |
| 5 |
anti-earthquake |
_____level |
| 6 |
brickwall needed or not |
If yes, 1.2m high or 1.5m high |
| 7 |
thermal insulation |
If yes, EPS, fiberglass wool, rockwool, PU sandwich panels will be suggested; if not, the metal steel sheets will be ok. The cost of the latter will be much lower than that of the former |
| 8 |
door quantity & size |
_____units, _____(width)mm*_____(height)mm |
| 9 |
window quantity & size |
_____units, _____(width)mm*_____(height)mm |
| 10 |
crane needed or not |
If yes, _____units, max. lifting weight____tons; max. lifting height _____m |
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