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Large Span Roof Grid Structure for Power Plant

Categories	Roof Structure System
Brand	PFM Architecture Service Provider
Project Type	Enclosed Coal Storage Shed for Power Plant
Structural System	Single-layer reticulated shell structure with weld
Span	123 meters
Roofing Material	Steel structure with metal roofing system
Design Service Life	50 years
Seismic Design	Seismic Intensity 8, seismic isolation bearing
Construction Period	12 months
Update Time	Aug 31,2025

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ROOF OF LARGE-SPAN GRID STRUCTURE STADIUM

Located in Yunfu, Guangdong Province, this coal storage project at a thermal power plant adopts a 123-meter-span single-layer reticulated shell with welded ball joints, covering 34,394 m².

The enclosed design minimizes coal dust and rain intrusion, improving environmental and operational efficiency. The project highlights PFM’s strength in large-span spatial structures and provides a modern, reliable roofing solution for coal storage.

Project Type	Enclosed Coal Storage Shed for Power Plant
Structural System	Single-layer reticulated shell structure with welded ball joints
Span	123 meters
Roofing Material	Steel structure with metal roofing system
Design Service Life	50 years
Seismic Design	Designed for Seismic Intensity 8, with seismic isolation bearing system
Construction Period	12 months

PROJECT TECHNICAL SOLUTION

Joints & Connections

Welded Ball Joints: To ensure high precision and reliability, advanced welded ball joint connections are used, offering enhanced structural stability.

Material Selection

Main Structure: Q355B steel, known for its excellent bending resistance and load-bearing capacity.

Material Selection

Roofing Material: Color-coated steel sheets or aluminum-magnesium-manganese alloy panels, offering corrosion resistance, weather protection, and long service life.

PROJECT HIGHLIGHTS & ADVANTAGES

Super Large Span

Achieves a 123-meter clear span with no columns, maximizing internal space for efficient mechanical piling and retrieval operations.

Environmental Safety

Enclosed design effectively prevents coal dust leakage, meeting modern power plant environmental standards.

Efficient Construction

Segmental prefabrication and overall lifting techniques significantly shorten the construction period and reduce construction risks.

Structural Stability

Single-layer welded ball joint shell system with seismic isolation design ensures safe operation under seismic intensity 8 conditions.

Why Choose PFM

Specialized Solutions For Your Project

With rich international EPC experience, we offer PFM customized structural and roofing solutions tailored to each project's function, design, and architectural needs—ensuring efficient construction, unique appearance, and reliable performance.

A Variety of Combination Schemes
Combination Scheme		Advantages	Application
Space Frame	Metal Roof	Cost-effective, efficient, long-span	Stadiums, exhibition halls, warehouses
	Glass Roof	Long-span, excellent natural lighting	Transport hubs, commercial atriums, lobbies
Truss	Metal Roof	Flexible design, good daylighting	Museums, shopping malls, greenhouses
	Glass Roof	High load capacity, strong and stable	Heavy-duty workshops, warehouses, venues with hanging systems
Tensile Membrane	ETFE	Unique shape, visually striking	Stadium canopies, landmark building entrances
	Glass Roof	Ultra-lightweight, translucent and energy-saving	Eco-greenhouses, high-end cultural and sports landmarks
steel structure	Metal Roof	Proven technology, highly adaptable	Commercial buildings, offices, schools, traditional industrial facilities
Latticed Shell	Glass Skylight	Natural daylighting, aesthetically pleasing, and modern minimalist design.	Commercial Plazas, Large Shopping Centers
Other Customizable Parameters
Span Range	From 30 to 200 meters, tailored to specific project requirements.
Seismic Rating	Designed to meet seismic intensity levels from 6 to 9.
Material Options	Including Q235/Q355 structural steel, ETFE membrane, weathering steel, and more.
Sustainable Design	Compliant with green building standards, featuring energy-efficient roofing to reduce energy consumption.
Construction Method	Modular prefabrication to shorten construction time and reduce on-site risks.

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Our Supply Capacity

Design Capability

A professional structural design team skilled in complex spatial modeling, structural analysis, and optimized design, ensuring the roofing system is safe, visually appealing, and cost-effective.

Procurement Capability

Long-term partnerships with top manufacturers of steel structures and roofing systems enable flexible material and system selection, guaranteeing both quality and delivery timelines.

Construction Capability

An experienced international engineering team specializes in large-span roof structures and systematic installation, ensuring high-standard, on-time project delivery.

Through an integrated Design–Procurement–Construction (DPC) supply model, PFM delivers stable and reliable turnkey roofing solutions—minimizing risk and reducing overall costs for clients.