Changnan Sports Center Main Stadium PTFE Roof
Project Details
- Project Name: Sports Center Main Stadium
- Project Type: Class B Sports Architecture
- Primary Material: High-Durability PTFE
- Main Stadium Seating: 13,231 Fixed Seats (18,000 Total Capacity)
- Roof Area: 22,000+ Square Meters
- Max Cantilever:60 Meters
- Max Height: 50 Meters
- Location: Nan Chang, China
- Warranty:30-50years
Project Overview: A Multifunctional Hub in the Xianghu District
The Changnan Sports Center Main Stadium is the crown jewel of the Xianghu regional development in Nanchang County. Situated in a prime ecological location with a high population density and adjacent to the Xiaolan Economic Development Zone, the entire complex spans a massive 200,000 square meters.
As a Class B sports architectural landmark, the main stadium is designed to accommodate 18,000 spectators (with 13,231 fixed seats), making it a versatile venue for international sports events, large-scale commercial performances, and professional training.
The Grand Design: Three Core Structures
The architectural language of the center is defined by three main pillars:
The Main Stadium: Featuring the iconic PTFE tensile roof.
The Swimming Pool: A modern aquatic facility.
Youth Activity Center: Dedicated to community engagement and sports education.
Beyond the main buildings, the site hosts multiple international-standard football pitches, athletics tracks, and tennis courts, providing a comprehensive ecosystem for athletic excellence and public health.
Engineering Marvel: The PTFE Tensile Membrane Roof
The most technically challenging aspect of the stadium is its massive 22,000-square-meter roof. To achieve a sense of “lightness” without sacrificing durability, SkyTensile implemented a high-performance PTFE (Polytetrafluoroethylene) membrane structure.
Steel Truss Space System: The roof is supported by a sophisticated steel pipe truss system, reaching a maximum height of 50 meters.
60-Meter Cantilever: The engineering team achieved a remarkable 60-meter cantilever, ensuring that all 18,000 spectators have a completely unobstructed view of the field.
Architectural Geometry: The roof consists of 55 conical caps and 19 flat membrane sections, creating a rhythmic, wave-like aesthetic that mimics the surrounding natural environment.
Why PTFE was the Strategic Choice
For a facility designed to host international events, the material choice was critical. PTFE-coated fiberglass was selected for its unparalleled performance:
Unmatched Durability: Engineered to last over 30 years, resisting the humid and rainy climate of Nanchang.
Self-Cleaning Excellence: The smooth surface prevents pollutants from adhering; a simple rain shower keeps the roof brilliant white.
Atmospheric Lighting: With 10%-15% light transmission, the PTFE material provides soft, natural daylighting for the stadium, significantly reducing energy consumption for daytime lighting.
SkyTensile continues to lead the industry in etfe-ptfe-dome-structure innovation.
Yes, the stadium and its outdoor football and athletics fields are designed to meet international competition standards.
The 60m cantilever allows for a massive roof span without internal support columns, ensuring that every seat has a 100% clear view of the stadium field.
The self-cleaning nature of the PTFE membrane reduces the need for manual cleaning, while its high weather resistance prevents degradation from UV rays and acid rain.
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