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Custom Q235B Galvanized Steel Structure Construction with Portal Frame Design for 30-50 Year Lifespan

Custom Q235B Galvanized Steel Structure Construction with Portal Frame Design for 30-50 Year Lifespan

MOQ: 1000 sqm
Price: USD 40-60 / sqm
Standard Packaging: Packed on steel pallet with fixture and loaded into 40'HQ/OT
Delivery Period: 6 weeks after shop drawing get approval
Payment Method: T/T,L/C
Supply Capacity: 100,000 sqm / month
Detail Information
Place of Origin
Shandong, China
Brand Name
TSIN
Certification
ISO, CE, SGS
Model Number
TSIN
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:
30~50 Year
Maximum Roof Load:
20+lb/sq.ft
Steel Material:
Q235B, Q355B, ASTM A36
Column Material:
Hot Rolled Or Welded H Steel Q355B
Purlin Material:
Q235B C/Z Section Steel
Highlight:

Galvanized Steel Structure Construction

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Q235B Steel Structure Construction

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custom steel construction Warehouse

Product Description
Custom Q235B Galvanized Steel Structure Construction Shed
Custom Q235B Galvanized Steel Structure Construction Shed for Warehouse Workshop or Hall Application
Construction Features
  • Lightweight construction with high strength, large spans, and reduced foundation pressure
  • Shorter construction period compared to concrete buildings, facilitated by simple on-site assembly
  • Investment costs are 20-30% lower than those of traditional buildings
  • High fireproof performance and excellent corrosion resistance
  • Buildings can be easily disassembled, relocated, and recycled, generating no pollution
The high-strength prefabricated steel structure warehouse offers a comprehensive solution with fast delivery and experienced installation guidance. This building structure consists of both internal support and external enclosure components.
The steel frame features a portal design, incorporating steel columns, beams, and bracing. This design, combined with the external enclosure, creates an enclosed building capable of withstanding severe weather conditions, including strong winds, heavy rain, and snow.
Metal components are cut, welded, drilled, and painted in our workshop before being transported to the construction site. Each component is fixed with bolts for convenient and quick installation, saving on labor costs. The steel frame comprises five main structural components: tension members, compression members, bending members, combined stress members, and their connections.
Prefabricated Steel Structure Warehouse showing complete building assembly 
Technical Specifications
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
Steel structure warehouse exterior view 
Quality Control
Quality control process flowchart
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
Company Profile
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.

Frequently Asked Questions
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.