Steel Structure Building
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Steel Structure Building

Portal Frame / Industrial Warehouse

Custom-designed steel portal frame buildings for factories, warehouses, workshops, and logistics centers. Section steel main frame, Z/C purlins, bracing system. Design in accordance with AS/NZS, BS, and Chinese GB standards.

Product Overview

Our steel structure buildings are the backbone of modern industrial construction. Using portal frame or truss systems, we deliver clear-span spaces up to 60m without internal columns — maximizing usable floor area for manufacturing, storage, and logistics operations.

Each building is engineered to your local design codes (AS/NZS 1170, BS 5950, EN 1993, or GB 50017) and comes with full calculation reports, fabrication drawings, and erection manuals. Our 5 production lines output 5,000 tons per month, ensuring on-time delivery for projects of any scale.

A typical 3,000 sqm warehouse structure ships from our factory in 25–35 working days. We provide optional on-site supervision and can recommend local erection contractors through our network. Every bolt, plate, and member is labeled and match-marked for rapid assembly — crews typically erect 500–800 sqm per day with a 5-person team.

Technical Specifications

Main FrameQ355B/Q235B H-section steel, hot-dip galvanized option
PurlinC/Z cold-formed galvanized steel, 1.5-3.0mm thickness
BracingRound steel bar / angle steel cross bracing
Clear SpanUp to 60m (single span), unlimited multi-span
Eave Height4m – 25m
Crane CapacityUp to 50T overhead crane compatible
Design StandardsAS/NZS 1170, BS 5950, EN 1993, GB 50017
Surface TreatmentShot blasting SA 2.5 + alkyd / epoxy / HDG
Roof Slope5% – 15% (standard), up to 30% for architectural

Key Features

Portal Frame Design — economical for spans up to 60m
Crane Beam Compatible — supports 5T to 50T overhead cranes
Multi-Span Option — unlimited width with intermediate columns
Design Code Flexibility — AS/NZS, BS, EN, or GB standards
Full Engineering Package — calculation reports + fabrication drawings + erection manual
Corrosion Protection — shot blasting SA 2.5 + multi-layer coating system
Hot-Dip Galvanizing — full structure available with 85μm zinc coating

Applications

Steel factory buildings & manufacturing plants
Warehouses & logistics distribution centers
Agricultural barns & storage sheds
Aircraft hangars & large-span showrooms
Shopping malls & commercial complexes

Ready to Start Your Project?

Send us your project requirements and drawings. Our engineering team will provide a detailed quotation with structural calculations within 24 hours.

Laotie Steel

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