ECO-FRIENDLY CLOSURE SOLUTION FOR INDUSTRIAL MATERIAL STORAGE YARD
Air supported membrane structures are a type of innovative, intelligent spatial structure that has gained widespread adoption in recent years. They offer numerous advantages, including low construction costs, short project timelines, safety and reliability, smart capabilities, and environmental sustainability. Once completed, the interior is free of beams and columns, providing vast storage space and facilitating the design of highly efficient, scientifically optimized logistics workflows. Consequently, they are extensively used in sectors requiring enclosed, eco-friendly facilities, such as port logistics, industrial material yards, and various types of warehousing.
AIR DOME SYSTEM MODULE
Standard Modules
Membrane Material
Weight: 0.75 kg/m2 – 1.2 kg/m2
Tensile Strength: 500 kg – 1,000 kg / 5 cm²
Service Life: 25 years
Acid and corrosion resistant; excellent self-cleaning properties
Class B1 fire-retardant rating
Operating Temperature: -40°C to 70°C
Cable System
Steel cables with diameters of 12, 16, 18, and 22 mm are used, depending on the span.
PE coating protects the steel cables from damaging the membrane material.
Capable of withstanding hurricane-force winds of 67 m/s (Category 16 typhoon).
Capable of withstanding a snow load of 250 kg/m².
Foundation
The foundation is suitable for construction under challenging geological conditions, such as fill areas, permafrost, soft soil, and collapsible loess.
It employs a spread-footing strip foundation design positioned below the frost line, primarily to resist uplift forces; key advantages include rapid construction and low cost.
Access Control System
Vehicle entry/exit utilizes an interlocking high-speed roll-up door system.
Door panels feature reinforced steel construction to withstand internal air pressure.
Vehicle doors operate at a speed of 10 seconds per cycle, accommodating a throughput of at least 80 vehicles per hour.
Personnel entry/exit utilizes an interlocking hydraulic system for safety and reliability.
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Fan quantity is determined based on floor area, following a "one-active, one-standby" configuration.
Intake fans and exhaust units ensure automatic air exchange within the structure.
Variable-frequency drive (VFD) fans start and stop automatically based on preset pressure values.
Equipped with a standard diesel generator that automatically switches on during a mains power outage.
Fan electricity consumption represents the sole operating cost for the entire air-supported structure.
Based on a 10,000-square-meter facility, annual electricity costs range from 25000kWh to 40000kWh (depending on vehicle traffic volume).
PLC Intelligent Control System
This PLC Intelligent control system make it possibility of intelligent and remote control the air supported membrane structures .
Automatically adjusts internal air pressure based on local wind speed and snow load.
Automatically activates the fresh air system if on-site levels of gas, dust, or vehicle exhaust emissions exceed safety limits.
Supports remote control capabilities
Workflow
Sensors collect data
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Server room host acquires data
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ata uploaded to cloud platform & analyzes data
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Operational commands sent
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Server room receives and relays commands
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Terminal equipment operates and processes data
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Features
Advanced Algorithms
The intelligent control cloud platform serves as the heart of the air-supported structure, utilizing advanced AI algorithms.
01
Automated Data Acquisition
Fully automated reception of terminal data and high-efficiency processing ensure the stable operation of the entire air-supported structure
02
Real-time Adjustment
Automatically adjusts internal air pressure based on local wind speed, snow load, and atmospheric pressure.
03
Quality Control
Real-time monitoring of gas, dust, and carbon monoxide levels allows for the automatic activation or deactivation of the fresh air system to effectively manage excessive concentrations.
04
Instant Monitoring
Supports 5G connectivity, enabling real-time remote monitoring of the system's operation via mobile phone.
05
Optional System
Fire Protection System
The system employs dual-band infrared detectors integrated with automatic fire-targeting water cannons, alongside outdoor and indoor fire hydrant systems, electric fire water cannon systems, emergency exits, and fire extinguishers. Upon a temperature alarm, the coal at the alarm location is first turned over and ventilated to lower the temperature and eliminate potential fire hazards.
Dust Removal System
The dust suppression and cooling system primarily comprises dust-suppression water pumps, a piping network, spray nozzles, and a control system.
Air outlets are equipped with airflow deflectors and water-bath dust removal units to effectively capture dust carried by the exhaust air and prevent secondary pollution; the airflow velocity is optimized to ensure it remains below the threshold required to lift coal dust, thereby suppressing dust at the source.
Surveillance System
An explosion-proof video surveillance system is installed within the air-supported structure. High-definition infrared dome cameras are utilized, meeting requirements for dust-proof, explosion-proof, waterproof, and anti-corrosion capabilities, with an infrared range exceeding 270 meters. Bullet cameras featuring an IP67 dust and water resistance rating are installed at both the entry and exit points of the vehicle access lanes to ensure reliable, real-time tracking of vehicle movements and complete coverage. The system provides comprehensive, "blind-spot-free" monitoring of the entire coal yard-including entrances and exits, fire monitors, mist cannons, and internal roadways-delivering clear, smooth video imagery. The system features intelligent, high-end performance that meets industrial and professional standards.
Lighting System
To address the challenging environment inside the coal yard-characterized by heavy dust and the presence of corrosive elements (such as sulfur) in the coal-explosion-proof, ruggedized (tri-proof) LED lights with an ingress protection rating of at least IP65 are employed. These fixtures utilize a floodlight design with LED chips featuring a 15-degree beam angle; this narrow light distribution effectively concentrates the beam, allowing light to be projected onto the ceiling of the air-supported structure. By leveraging the membrane material's unique reflective properties, the system achieves ample illumination with minimal energy consumption.
Air supported membrane structures Industry Applications & Case
Industrial Environmental Protection
Enclosure Project for the Material Yard of Rizhao Steel Co., Ltd.
The project boasts a world-leading total area of 300,000 square meters, with a single-unit area of 80,370 m². Its 684-meter length is the longest in the world. The construction engineering pioneered a single-row pile construction process to address the overall structural shear resistance requirements. Additionally, two conveyor belts pass through the membrane on both sides of the interior. The project successfully traversed a 25-meter bucket wheel excavator without interrupting production, and the internal material handling unit was also constructed without interrupting production. Despite the limited space and challenging construction conditions at the project site, the project was completed ahead of schedule.
Inner Mongolia Daihai Power Generation Co., Ltd. Super-Large Span Membrane Structure Fully Enclosed Coal Yard Demonstration and Application Project
This project is a key project of the National Development and Reform Commission. Each coal yard has two east-west oriented bucket wheel excavator foundations, with a center-to-center distance of 70m. The average coal stacking height is approximately 12.5 meters. The main internal equipment, the bucket wheel excavator, is 21.6 meters high with a working radius of 30 meters. The bucket wheel stacker-reclaimer is heavy-duty. Furthermore, with a span of 200.2m, the project is the world's largest span air-supported membrane structure project, placing it in a world-leading position in the field of air-supported membrane structures for industrial material yards.
Coal Storage Dome Project for Inner Mongolia Baiyinhua Haizhou Open-pit Coal Mine Co., Ltd.
This project covers a total area of 25,400 square meters and is located in a high-latitude region characterized by cold temperatures, strong winds, and heavy snowfall. The annual average temperature ranges from 0°C to 3°C, with a minimum temperature of -38.6°C; the freezing period lasts for five months, and the cold season extends to seven months. The project stands as a prime example of air-supported structure applications designed to withstand the extreme weather conditions of frigid regions.
Air-Supported Structure Project for the Phosphogypsum Warehouse at Yichang Xinyangfeng Fertilizer Industry
Covering a total area of 40,960 m² and located in Hubei Province near the Yangtze River, the site experiences summer temperatures reaching 40°C and humidity levels of 85%. Our patented technologies-including an internal air dispersion and flow-guiding structure, a dehumidification system, and a roof exhaust unit-effectively addressed these challenges. These innovations enable controllable temperature and humidity differentials (maintaining a difference of 4–6°C and approximately 15%, respectively), ushering in a new era for green port facilities.
Air-Supported Warehouse for the Calcium-Based New Materials Industrial Park Project (Hubei Yangfeng Zhongwei Mining Co., Ltd.)
Total project area: 44,240 m²
Project Highlights: Five 32-meter-high conveyor belts pass through the air supported membrane structures; the elevation difference between the north and south retaining walls ranges from 31 to 42.5 meters; and the transition from low to high points at the four corners involves extreme geometric complexity. This represents the most challenging design and construction project in the air-supported structure industry to date.
Warehousing and Logistics
Tianjin Xinzheng Shipbuilding
Air-supported Membrane Warehouse Project
Project Specifications: 280m * 136m * (Total Area: 38080 m²)
Project Type: Design and installation of complete air-supported membrane system
Project Address: Huanghe Road, Binhai New Area, Tianjin
Project Characteristics: The project is located approximately 100 meters from the sea. Construction conditions include low temperatures, strong winds, heavy rainfall, and localized extreme gusts. Effective, safe, and reasonable planning is required at every stage of the air-supported membrane construction.
Sports and cultural venues
Chengdu Tennis Center
A professional sports environment featuring glare-free lighting, constant temperature and oxygen levels, and climate-adaptive design.
A customized, integrated environmental solution designed to meet the rigorous lighting and ventilation requirements of tennis, while addressing local conditions-such as Chengdu's sultry humidity, autumn/winter smog, and the basin's intense UV radiation.
Breaking away from the standard all-white air-supported structure aesthetic, the design balances architectural utility with visual appeal, creating a highly recognizable local sports landmark.
Rapid project delivery-completed in just 45 days-to capitalize on the optimal operational window.
Smart operations and robust security systems ensure fully automated management, offering peace of mind and enhanced safety.
Equipped with a dedicated smart management system for air-supported structures, the facility enables one-stop operational coordination and supports unmanned, streamlined maintenance.work.
why choose our products
CWTC's air supported membrane structures manufactuer established in 2012 with a registered capital of 40 million RMB, is a National High-Tech Enterprise of China, a Specialized and Innovative Small Giant Enterprise of Shanxi Province, and one of the first batch of leading science and technology enterprises in Taiyuan City. It holds a Class A qualification for membrane structure engineering general contracting (design, fabrication, and installation) and a Class B qualification for building construction general contracting, among other qualifications. The company has an AAA credit rating and has passed ISO9000 and other professional certifications for quality, environment, and occupational health. They specializes in air-supported membrane structures for industrial material yards, possessing unique design and construction advantages in addressing a range of industry challenges, including ultra-large spans, renovation of aging facilities, irregular structures, harsh weather conditions, tight deadlines, and rapid assembly and disassembly.
It is a leading enterprise in the membrane structure industry, serving as a supplier of air-supported membrane structures for numerous Fortune Global 500 companies, including Beijing Energy Group, Datang Group, Shaanxi Coal Group, Rizhao Steel Group, Jineng Holding Group, Shanxi Coking Coal Group, Baowu Group, Nanshan Group, and Sinosteel Energy. Collaborating with many state-owned enterprises, central enterprises, and Fortune Global 500 companies, holds numerous industry records for ultra-large spans, ultra-large areas, ultra-high speeds, and solutions to special and challenging technologies.
The company holds 58 patents related to air-supported membrane structures, including 13 invention patents, 44 utility model patents, and 1 design patent. And 18 software copyrights related to air-supported membrane structure control.
Holds the only Level II Confidentiality Qualification Certificate for Weapon Equipment Research and Production Units in China's membrane structure industry, and achieved a breakthrough in the field of national defense protection engineering in 2023
Certifications
ISO9001:2015
ISO45001:2018
ISO14001:2015
Construction Enterprise Qualification Certificate
Membrane Structures Special-Grade Qualification
Level II Security Qualification Certificate
Comprehensive air supported membrane structures customize (OEM) Service System
CWTC places customer needs at the core, offering a one-stop, comprehensive service system. From business consultation, scheme design, procurement and production, and construction and installation to after-sales support, we provide meticulous solutions to deliver energy-efficient, eco-friendly air-supported membrane structures.
Includes preliminary consultation and conceptual design. We conduct project feasibility analyses, advise on project initiation and approval processes, and perform investment return analyses.
Tailored project design.
Includes: schematic drawings, renderings, and construction drawings; analysis of material and equipment selection; energy consumption calculations; indoor lighting calculations and design; and other technical design elements.
We source the best materials and equipment globally, handling their processing and system integration.
Installation, commissioning, and handover of the air-supported structure for operation.
Training on the use and maintenance of the air-supported structure to ensure proper operation; remote monitoring services, where professional technicians monitor the entire structure in real-time and provide actionable data and insights.
Our end-to-end service process ensures a worry-free experience, allowing you to focus on technology and service excellence. Partner with CWTC to harness the power of technology for a cleaner living environment.
FAQ
Q: 1. What is an Air Supported Membrane Structure?
A: It is a large enclosed space formed by a flexible membrane supported by internal air pressure. Continuous low air pressure keeps the membrane inflated and maintains the shape of the structure.
Q: 2. How does an air supported structure work?
A: The structure uses a ventilation and air supply system to maintain slightly higher internal air pressure than the outside environment. This pressure supports the membrane and keeps the structure stable.
Q: 3. How large can an air supported membrane structure be?
A: Currently, the maximum span we can achieve is 200 meters, with no limit on length.
Q: 4. Can air supported structures withstand snow loads?
A: 250 kg/m²
Q: 5. How long does an air supported structure last?
A: 25 years
Q: 6. Do it need continuous electricity?
A: Yes, most permanent air supported structures require a continuous air supply system to maintain internal pressure.
Q: 7. Are air supported membrane structures waterproof?
A: Yes. The membrane fabric can be manufactured with waterproof and weather-resistant coatings. also on seams, doors, connections, drainage and installation quality.
Q: 8.Is it fire resistant?
A: Fire performance depends on the membrane material . Fire-retardant membrane fabrics can be supplied to meet applicable standards and project requirements, such as NFPA, EN or other local fire regulations.
Q: 9. Can air supported membrane structures be insulated?
A: Yes. Insulation can be added to improve thermal performance.
Q: 10. Can an air supported structure be heated or air-conditioned?
A: Yes. HVAC systems can be integrated into the design.
Q: 11. How long does it take to install an air structure?
A: Usually 5-7 days , but varies according to the size and complexity of the project it may different.
Q: 12. Does air supported membrane structure require a foundation?
A: It normally requires an anchoring and foundation system.
The exact solution depends on the structure size and site conditions. Options may include concrete foundations, ground anchors or other engineered anchoring systems.
Q: 13. Can it be relocated?
A: Some temporary and semi-permanent systems can be dismantled and relocated. However, relocation depends on the membrane design, anchoring system, foundation type and intended service life.
Q: 14. Can air supported structures be customized?
A: Yes. we supply OEM and ODM service
Q: 15. What applications is it used for ?
A: It can be used as aircraft hangars, logistics, storage, maintenance and temporary facilities and disaster relief.
Q: 16. Can CWTC provide a complete air supported membrane structure solution?
A: Yes. A complete project can include the membrane structure, air supply system, anchoring system and other supporting equipment.
16. What is the MOQ ?
1 set
Q: 17. How is the structure packed for shipping?
A: The membrane, accessories and mechanical equipment can be packed separately for transportation.The packing method depends on the project size and equipment configuration.
Q: 18. Can you provide a container loading plan?
A: Yes. For large international orders, a packing list and container loading plan can be prepared.
Q: 19. Do you provide installation services?
A: Installation support can be provided depending on the project scope and location.
Q: 20. Do you provide operation and maintenance manuals?
A: Yes. Can also provide training to help the end user operate the system correctly.
Q: 21 .How long is the warranty period?
A: 12 months
Q: 22. Can you supply spare parts after warranty?
A: Yes. Replacement parts can be supplied during the service life of the project, services beyond the warranty period are subject to a fee.
Contact CWTC to Get Your Project Quotation !
Send us the basic project information, including:
Size + Location + Application + Wind Load + Snow Load + Door Requirements + Insulation/HVAC Requirements + Required Delivery DateCWTC can then review the requirements and develop a suitable technical and commercial proposal.
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