The spatial grid steel structure constitutes a spatially integrated skeletal system in which loads are distributed collectively. Composed of an orderly assembly of structural members, it is simultaneously lightweight and robust, enabling the construction of large-span, column-free spaces. Most of its components are prefabricated in a factory, facilitating convenient and rapid on-site installation and ensuring high construction efficiency; this design successfully harmonizes lightweight characteristics with high structural strength. The structure exhibits exceptional overall integrity, resists deformation over long-term use, and demonstrates outstanding and stable comprehensive performance. 3D truss system (triangular/pyramidal units) for ultra-large spans. Hollow steel sections (Q355B/ASTM A572) with bolted spherical nodes. Lightweight, high rigidity. Span 30–150m+. Hot-dip galvanized. 50+ year life. AISC/IBC compliant.
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Core Features & Advantages
Large-span spatial grid roofs offer an open, airy space and a high degree of design flexibility, making them suitable for a wide range of applications. With a rational structural design and scientifically engineered load-bearing system, they provide outstanding resistance to wind, snow, and seismic forces, ensuring greater safety. Factory-manufactured components offer high precision and allow for rapid installation, significantly shortening construction schedules and reducing overall construction costs.
♦ 150m+ clear span;
♦ 30% lighter, less steel;
♦ Fast assembly;
♦ Zero maintenance, 50+ years;
♦ Any shape;
♦ Weather resistant.
Applications
Large-span spatial grid roofs offer expansive, column-free interiors. They are suitable for public cultural and sports facilities—such as stadiums, exhibition centers, and cultural and recreational hubs—and also meet the spatial demands of major transportation venues, including airport terminals and transit hubs. Furthermore, they are widely utilized in commercial and industrial structures—such as large-scale logistics warehouses, industrial plants, and aircraft hangars—thereby fully satisfying the functional and operational requirements of a diverse range of large-span buildings.
♦ Stadiums;
♦ Exhibition halls;
♦ Airports;
♦ Shopping malls;
♦ Factories;
♦ Hangars.
Product Parameter
| Products | Prefabricated steel structure building |
| Type | H-beam, Column, Tie-rod, Truss,Box-column |
| Main Material | Q235B(ASTM A36,S235JR), Q355B |
| Surface treatment | Painting, Galvanized |
| Process-Cutting | Laser cutting, plasma cutting, flame cutting for intricate shapes |
| Forming | Rolling, and bending to meet complex structural designs |
| Welding | MIG, TIG, Submerged arc |
| Machining | Drilling, milling for precise fittings |
| Quality Control | QC inspection, third party inspection |
| Package | As requested |
If You Can Dream It, We Can Make It!
Welcome to Shandong Fengshi Heavy Industry Co., Ltd. The company is located in the High-tech Development Zone of Jining City, Shandong Province. Covering an area of over 120 mu, with a registered capital of 120 million yuan, it currently employs more than 600 staff. It is a comprehensive service enterprise engaged in general contracting of projects such as construction, municipal engineering, petroleum & petrochemical, and pressure pipelines. It manufactures products including steel structures (space frames, trusses), pressure vessels, SF/double-layer oil tanks, skid-mounted refueling devices, and various metal containers. The company is a modern national-level high-tech enterprise integrating six-in-one services: general project contracting, R&D and design, production and manufacturing, equipment sales, project cooperation, and after-sales service.






