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Ultra-Large-Span Grid Shell Roof Structure Aquarium

Categories	Roof Structure System
Brand	PFM Architecture Service Provider
Model	Large-Span Grid Structure Power Plant Shed for Power Plant
Project Type	Enclosed Coal Storage Shed for Power Plant
Structural System	Single-layer grid structure (welded spherical join
Span	123 meters
Roofing Material	Steel structure + metal roofing system
Design Service Life	50 years
Seismic Design	Seismic Intensity 8, seismic isolation bearing
Construction Period	12 months
Update Time	Sep 2,2025

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LARGE-SPAN GRID POWER PLANT FOR POWER PLANT

The project is an enclosed coal storage shed at a power plant, Guangdong Province. It uses a large-span single-layer grid shell with welded spherical joints, spanning 123 meters and covering about 34,394 square meters.

The design solves safety and environmental issues for coal storage, while demonstrating PFM’s strength in complex structural design and construction. The enclosed roof reduces coal dust and rainwater intrusion, improving storage conditions and operation efficiency. It is an ideal roofing solution for modern power plants.

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

PROJECT TECHNICAL SOLUTION

Joints & Connections

Welded spherical joints: To ensure high precision and reliability, advanced welded spherical joint connections are used, providing enhanced structural stability.

Material Selection

Main Structure: Q355B steel, offering strong bending resistance and load-bearing capacity.

Material Selection

Roofing Material: Color-coated steel panels or aluminum-magnesium-manganese alloy panels, corrosion-resistant, weatherproof, and durable.

PROJECT HIGHLIGHTS & ADVANTAGES

Ultra-Long Span

Achieves a 123-meter column-free clear span, fully maximizing internal space and facilitating efficient mechanized coal handling.

Environmental Safety

The enclosed design effectively prevents coal dust dispersion, meeting modern power plant environmental standards.

Efficient Construction

Segmental prefabrication combined with overall lifting techniques significantly shortens the construction period and reduces on-site risks.

Structural Stability

The single-layer welded spherical grid shell, combined with a seismic isolation bearing system, 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.