Steel structure solutions for a 6,000 square meter printing plant in Angola

On Angola’s rapidly developing industrial landscape, Canglong Group, leveraging its mature steel structure technology, successfully delivered a modern printing plant. This project, with its precise spatial planning and efficient construction system, sets a new benchmark for African manufacturing.

Project Core Parameters

Size: 75m (L) × 80m (W) × 7.81m (H), total area 6,000 sq m.

Structural Form: Portal multi-span steel structure.

Main Materials:

Main Beams/Columns: Q355B high-strength H-beams (30% improvement in wind load and seismic resistance).
Roof Purlins: C-shaped cold-formed thin-walled steel (lightweight design, reducing steel consumption).

Enclosure System:

Roof: Single-layer color steel plate, 0.5mm thick aluminum-zinc coated base, UV-resistant coating.
Exterior Walls: Metal profiled sheet + 1.5-meter brick wall base, combining aesthetics and moisture resistance.

Door and Window System:

Main Entrance: Large electric roller shutter door, 5-meter clear height, accommodating truck access.
Side Windows: PVC sealed windows, double-glazed, noise reduction and energy saving.

Technical Highlights and Implementation Advantages

1. Digital Pre-construction, Precise Implementation

3D model design for all disciplines is completed before project commencement, integrating architecture, structure, and MEP pipelines to proactively avoid collision issues.

BIM technology optimizes node connections, ensuring welding precision of Q355B steel and efficient installation of C-shaped purlins.

2. Localized Adaptation, Enhanced Durability

For Angola’s tropical savanna climate, the color steel plate uses an anti-termite coating, and the metal plate base is embedded in a 1.5-meter brick wall to resist ground moisture.

All steel components undergo double anti-corrosion treatment with hot-dip galvanizing and epoxy zinc-rich primer, ensuring a lifespan of over 25 years.

3. Modular Production, Rapid Construction

Canglong Group’s China base completes 90% of the steel component processing (H-beam cutting, C-beam roll forming). After arriving in Angola, on-site assembly is completed in just 45 days, shortening the construction period by 60% compared to traditional concrete structures.

Project Value

Capacity Increase: The large-span space supports high-speed rotary printing press cluster operations, with an estimated annual production capacity of 120 million sheets of packaging paper.
Cost Optimization: The steel structure solution reduces foundation costs by 35% and overall lifecycle maintenance costs by 50%.
Regional Demonstration: Becoming Angola’s first all-steel structure printing plant, providing a technical model for local industrial buildings.