Efficient Application of Spatial Structures in Airports and Transportation Hubs

 As gateways to cities, airports and transportation hubs must simultaneously meet diverse demands for ultra-large span spaces, complex curved surface designs, and intelligent operational management. With their green, low-carbon, and modular technical characteristics, space frame structures have emerged as the ideal solution for such transportation facilities, demonstrating irreplaceable advantages in enhancing functionality and intelligence.

1. Functional Requirements and Technical Adaptation

Modern airport and transportation hub designs confront three core challenges:

(1) Creating column-free spaces spanning hundreds of meters to accommodate tens of thousands of passengers during peak hours;

(2) Integrating complex electromechanical systems like baggage sorting and rail transit installations;

(3) Ensuring long-term durability and operational safety.

Space structures effortlessly span over 150 meters while weighing only one-third of concrete structures, significantly reducing foundation loads. At a major airport hub terminal utilizing space frame construction, the central concourse achieved 60-meter column spacing, boosting passenger flow efficiency by 40%. Components are prefabricated in factories, with on-site installation precision controlled within ±3 millimeters.

2. Innovative Design Case

In the T3 terminal project of an international airport, a large-span roof system was adopted. The vast roof projection area substantially reduced steel consumption compared to traditional solutions. The extensive photovoltaic roof generates significant annual electricity, meeting part of the terminal's power demand. Over three years of operation, it has successfully mitigated potential risks during multiple typhoon seasons.

3. Product Characteristics and Safety Assurance

For the unique environment of transportation hubs, the spatial structure employs a three-tier corrosion protection system:

Zinc-aluminum-magnesium coated steel combined with fluorocarbon paint coating delivers outstanding salt spray resistance, effectively withstanding the high humidity and high salinity corrosion environment surrounding airports.

In fire protection design, truss members are wrapped with fireproof coatings and composite fireproof boards, achieving a high fire resistance rating that fully meets terminal fire safety regulations.

The roof panels utilize double-layer sandwich panels with extremely low thermal conductivity. Combined with an intelligent ventilation system, this significantly reduces summer air conditioning energy consumption. Simultaneously, a dual “welding + sealing” waterproofing process ensures reliable roof waterproofing performance.

4. Market Recognition

Leveraging over 20 years of experience in transportation hub construction, the company has participated in numerous international airport space frame projects. Its technical team can precisely address complex requirements involving “large spans + intricate shapes.” LF maintains a leading market share in the construction sector, serving as a trusted core partner for clients.

5. Future Trends

With the advancement of smart transportation, spatial structures will evolve toward “intelligent adaptive” capabilities: developing smart nodes with adjustable stiffness to automatically optimize load-bearing during earthquakes or strong winds; integrating with 5G base stations, millimeter-wave radars, and other equipment to create “functionally composite” smart roof systems. The company has launched the “Future Hub” R&D initiative to explore synergistic design between space frames and autonomous rail systems alongside intelligent guidance systems, continuously empowering the intelligent upgrade of transportation infrastructure.

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