PRODUCT CATEGORIES
Large-Span Spatial Structures
Large-span steel structures are structural systems designed to create column-free interior spaces over large areas, typically exceeding 30 meters in span. These structures are commonly used in industrial facilities, logistics centers, airports, stadiums, exhibition halls, and large public buildings where open space and flexible layout are required.
As a Large Span Steel Structures Manufacturer, Jin’an Group develops spatial steel systems based on truss structures, space frame systems, and portal frame configurations. The structural design is optimized according to span length, load conditions, and functional requirements to ensure efficient force distribution and overall stability.
Large-span steel systems transfer loads through axial force-dominated members such as trusses and grid frameworks, which improves material efficiency while maintaining high structural rigidity. Typical spans range from 30 meters to over 100 meters depending on project scale, with engineering solutions selected based on wind load, snow load, and usage conditions.
Prefabrication is a key feature of these systems. Steel components are fabricated in factory-controlled environments, including cutting, welding, drilling, and trial assembly before transportation to the site. This process reduces on-site construction complexity and improves installation accuracy, especially for large-scale spatial roof structures.
Large-span steel structures typically include the following engineering systems:
Space frame structures (three-dimensional grid systems)
Steel truss structures (axial force-bearing systems)
Portal frame structures (simple large-span industrial buildings)
Hybrid structural systems for complex architectural requirements
Structural design for large-span systems is based on multiple engineering parameters and performance-controlled conditions:
Span design typically ranges from 30m to 120m+, with load distribution calculated using truss or space frame force-transfer systems to ensure structural balance under long-span conditions.
Structures are commonly designed for wind loads ranging from 0.4–1.5 kN/m², and snow loads ranging from 0.3–2.0 kN/m², depending on geographic location and building function.
Large-span steel systems are generally designed to meet seismic resistance levels up to Grade 7–8 or higher, using ductile connection systems and energy-dissipation structural layouts.
Column-free interior space efficiency can reach 90%–100% usable area ratio, depending on structural type (space frame vs truss system).
High-strength bolted or welded node systems are designed to transfer axial forces efficiently, with connection capacity typically accounting for 60%–80% of overall structural stability performance in space frame systems.
Prefabrication levels typically reach 80%–95% factory production, reducing on-site structural installation time by 30%–60% compared to traditional construction methods.
INTERESTED IN SIMILAR PROJECTS?
We are able to flexibly respond to various challenges ranging from standard factories to complex landmark buildings, providing you with truly tailored solutions.
Get A Free Quote
Jin'an Group
