ETFE Membrane Semi-spherical Roof Structure
- Model
- Large-span ETFE Membrane Roof System
Item specifics
- Type
- Membrane structure construction project
- Structural System
- Semi-Circular Spherical Structure + ETFE Membrane
- Roof Span
- 73 m
- Roofing Materials
- ETFE Membrane
- Membrane Area
- Approximately 17,000 m²
- Design Service Life
- 25–30 years (for membrane material)
- Seismic Resistance
- Designed for 8-degree rating
- Construction Period
- Approximately 8–10 months
Review
Description
Quick Details
ETFE MEMBRANE ROOF SYSTEM
This project belongs to the main building of the China Aerospace Modern Agriculture Innovation Center Phase I Experience Center. It is a semi-circular spherical structure with a diameter of 73 meters, a span of 73 meters, a height of 23 meters, and an ETFE membrane structure area of approximately 17000 square meters. It is a typical large-span, large-space structure, and the entire structure is crystal clear and magnificent.
Project Type | ETFE Membrane Roof |
Structural System | Semi-Circular Spherical Structure + ETFE Membrane |
Roof Span | 73 m |
Roof Height | 23 m |
Roofing Materials | ETFE Membrane |
Membrane Area | Approximately 17,000 m² |
Design Service Life | 25–30 years (for membrane material) |
Seismic Resistance | Designed for 8-degree rating |
Construction Period | Approximately 8–10 months |
Project Technical Solution
Structural System
The project adopts a semi-circular spherical structural system composed of a main steel framework combined with an ETFE pneumatic membrane system. The integration of the steel structure and lightweight ETFE cushions achieves a large-span, transparent architectural form. Compared to traditional roofing, the overall weight is reduced to about one-fifth, minimizing foundation load and construction complexity.
Membrane (ETFE)
The ETFE membrane features exceptional light transmittance of up to 90%, allowing abundant natural light to fill the interior while maintaining excellent thermal insulation. It offers outstanding UV resistance, weather durability, and self-cleaning performance, ensuring long-term transparency and minimal maintenance costs.
Cable & Support System
The supporting system consists of high-strength steel cables and precision-engineered connectors, ensuring stable load transfer and wind resistance. The flexible yet robust cable-membrane integration provides superior structural performance under dynamic environmental conditions, maintaining both safety and visual lightness.
Project Highlights & Advantages
Iconic Architectural Appearance
The membrane structure’s unique curved form combined with dynamic light and shadow effects gives the stadium a distinctive identity, making it a city landmark.
Lightweight Large Span
The ultra-large-span roof minimizes internal columns, providing an open viewing space that meets the needs of sports events and other activities.
Long Service Life & Low Maintenance
PTFE membranes last much longer than PVC. With only regular cleaning and inspection, they ensure stadium longevity and reduce operational costs.
High Safety Performance
Designed for large-span spaces, PTFE membranes are strong, tear-resistant, waterproof, and fire-retardant, ensuring safety under wind and rain loads.
Durable & UV-Resistant
PTFE membranes resist UV damage, whiten within 30 days, and maintain a clean, bright appearance for over 25 years, ideal for high-UV environments.
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 | Structural Advantages | Functional Advantages | Typical Applications | |||||
| Space Frame | Metal Roof | Long-span, lightweight, cost-effective | Simple modern appearance | Stadiums, exhibition halls, warehouses | ||||
| Glass Roof | High stiffness, stable structure | Excellent daylighting, transparency | Transport hubs, atriums, lobbies | |||||
Truss | Metal Roof | Flexible design, adaptable | Good daylighting | Museums, malls, greenhouses | ||||
Glass Roof | High load capacity, durable | Transparent and open | Workshops, venues with hanging systems | |||||
Tensile Membrane | ETFE | Excellent durability, self-cleaning | Soft diffuse light | Stadium roofs, exhibition canopies | ||||
PTFE | Ultra-lightweight, flexible, 90% transparency | Unique shapes, visually iconic | Stadium facades, atrium roofs, eco-greenhouses | |||||
steel structure | Metal Roof | Mature technology, reliable and strong | Industrial, modern appearance | Offices, factories, schools | ||||
Latticed Shell | Glass Skylight | High rigidity, large span | Abundant natural light, modern minimalist design | Commercial plazas, 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. | |||||||
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.
