Overview
Large-span space frame tubular trusses are engineered structures composed of interconnected steel or aluminum tubes arranged in geometric patterns. They are widely used in modern architecture to create column-free spaces exceeding 100 meters, such as sports arenas and transportation hubs. Their design leverages triangulation principles to distribute loads efficiently, minimizing material usage while maximizing strength. Developed in the mid-20th century, these trusses revolutionized large-scale construction by replacing traditional heavy beams. Today, they are prefabricated off-site for rapid assembly, reducing construction timelines. Common configurations include pyramid, quadrangular, and orthogonal systems, tailored to project-specific span and load requirements.
Structure and Working Principle
The truss consists of upper/lower chords connected by web members (tubes), forming a rigid 3D framework. Loads are transferred axially through the tubes, with tension and compression forces balanced across the network. Finite element analysis (FEA) is used to optimize tube diameters and wall thicknesses for weight savings. Joints are critical—typically welded spherical nodes or bolted connectors. High-strength bolts (Grade 8.8 or 10.9) are common for assembly, allowing adjustments during installation. Advanced designs incorporate hollow section tubes to reduce weight further, with internal diaphragms added at joints to prevent buckling.
Key Features
1. **Modularity**: Prefabricated units enable scalability and easy transport. 2. **Corrosion Resistance**: Hot-dip galvanizing or powder coating extends lifespan in harsh environments. 3. **Seismic Performance**: Flexible designs absorb dynamic loads, making them ideal for earthquake-prone regions. These trusses also support integrated MEP (mechanical, electrical, plumbing) systems within their voids, streamlining installations. Fire-resistant coatings (e.g., intumescent paint) can be applied for compliance with building codes. Recent innovations include hybrid systems combining steel tubes with CFRP (carbon fiber-reinforced polymer) for ultra-lightweight solutions.
Application Areas
Primary applications include: **Stadiums** (e.g., Beijing National Stadium's Bird's Nest), **Airport Terminals** (long-span roofing), and **Industrial Facilities** (e.g., power plant turbine halls). Their adaptability also makes them suitable for temporary structures like concert stages. In renewable energy projects, these trusses support solar panel arrays or wind turbine assembly halls. Architects favor them for aesthetic flexibility—curved or cantilevered designs are achievable with custom node engineering. Green building projects often use recycled steel variants to meet sustainability goals.
Maintenance and Precautions
Routine inspections should check for: 1. **Corrosion**: Especially in coastal areas; remedial coatings may be needed. 2. **Joint Integrity**: Loose bolts or weld cracks require immediate attention. 3. **Deformation**: Laser scanning can detect subtle shifts in geometry. Preventive measures include installing drainage systems to avoid water pooling and using sacrificial anodes in highly corrosive environments. Load modifications (e.g., adding heavy equipment) necessitate re-evaluation by a structural engineer. Cleaning with low-pressure water is recommended to preserve coatings.
B2B Procurement Guide
1. **Supplier Qualifications**: Verify experience with projects of similar scale; request case studies. 2. **Material Certifications**: Ensure mill test reports (MTRs) for steel comply with ASTM A500 or EN 10210. 3. **Logistics**: Confirm the supplier can handle oversized shipments; modular designs should fit standard containers. Negotiate pricing based on tonnage, with discounts for bulk orders. Payment terms often include 30% advance, 60% upon shipment, and 10% after installation. Consider suppliers offering design-assist services to optimize material usage. Lead times typically range from 8–12 weeks for custom orders.
Related Manufacturers
- 主营：铝桁架、景桁架、铁桁架、管桁架、桁架舞台、桁架出租、桌椅桁架、蝴蝶桁架、桁架租赁、镀锌桁架、铝合金桁架、弹簧头桁架
- 主营：螺栓球、干煤棚、数控钢板、球网架、棚网架、球形网架、钢管网架、网架制造、网架图纸、安装网架、精选网架、网架制作、机场网架、华凯网架、网架定制、网架配件、网架加油站、不锈钢网架、钢结构网架、体育场馆、钢板下料、安装定制、定制加油站
- 主营：螺栓球网架、不锈钢网架、干煤棚网架、体育馆网架、网架配件、钢结构设计
- 主营：网架、网架加工厂、网架加工、大跨度网架、球形网架、螺栓球网架、厂房网架、煤棚网架、体育馆网架、高铁站网架、管桁架、户外网架
- 主营：网架加工、煤棚网架、干煤棚网架、储煤棚网架、大跨度网架、球形网架、焊接球网架、螺栓球网架、加油站网架、加油站网架罩棚、收费站网架、风雨操场网架、球形网架加工、料棚网架、电厂网架、螺栓球网架加工、焊接球网架加工、煤棚网架加工、体育馆网架、钢网架、钢网架加工、异形网架、异形网架加工、大跨度煤棚、屋面网架
- 主营：钢结构、H型钢、镀锌管、大跨度钢结构厂房安装、地脚螺栓
- 主营：金属屋面系统、钢结构、攀岩墙、钢网架加工、体育馆网架、大跨度玻璃釆光顶、球形网架、埔成网架、网架经验、网架帐篷房、干煤棚网架、加油站网架、工业厂房网架、粮食仓库网架、展馆网架结构、玻璃幕墙、铝板幕墙、幕墙工程、玻璃雨棚、合金屋面板、玻璃阳光房、攀岩比赛策划、电梯井道钢架
- 主营：钢结构、旋转楼梯、护栏、工厂大门、消防楼梯
- 主营：煤棚网架、储煤棚网架、管桁架、屋面网架、屋顶网架、球形网架、螺栓球网架、加油站网架、焊接球网架、大跨度网架、干煤棚网架、风雨操场网架、大跨度煤棚、网架加工、管桁架加工、球形网架加工、厂房网架、体育馆网架、煤棚网架加工、加气站网架罩棚、电厂煤棚网架、收费站网架、管桁架结构、钢结构厂房
- 主营：方矩管、镀锌管、花卉管材、大棚管、建筑钢铁、法兰连接、镀锌圆管、建筑材料、镀锌方管、结构钢铁、镀锌建筑、流体钢管、屋顶装饰、预埋钢板、机械零件、钢材切割、钢管给水、建筑管材、镀锌槽钢、钢板、工字钢、井盖、水篦子
- 主营：彩钢板、彩钢瓦、楼承板、管桁架、钢结构、彩钢房、围挡板、围挡瓦、楼承瓦、彩钢复合板、彩钢活动房、阳光板、彩石瓦、打包箱
- 主营：钢结构、建筑幕墙、天窗采光、网架、钢结构桥梁制作与销售、电子与智能化工程、防水防腐保温工程、消防设施施工工程
- 主营：钢结构别墅、热镀锌C型钢、钢结构厂房檩条、管桁架、热镀锌H型钢、国标热轧槽钢、热镀锌槽钢、Q235B槽钢、热镀锌方管、镀锌方管、Q235镀锌方管、热镀锌钢管、镀锌管、钢结构加工厂、钢结构工程、工字钢、焊管、黑方、黑方管、角钢、螺旋管、路沿模、球墨铸铁管、无缝管、圆钢、声测管
- 主营：钢结构、轻钢、轻钢别墅、管桁架网架、钢结构楼梯、轻型钢构、旋转楼梯、雨棚、玻璃幕墙、钢结构厂房、钢结构施工、钢结构厂房建造、钢结构工程、钢结构加工、车棚、钢平台、钢结构车间、钢结构仓库、桥梁施工、膜结构、集装箱活动房、集装箱房、活动房、钢结构桥梁
- 主营：加工各类钢网架
- 主营：管托支吊架、弹簧支吊架、聚氨酯保冷管托、厂房网架、管托、C型抱箍管卡、管夹式管托、布料机、J1管托、J2管托、液压布料机、蛭石隔热管托、支吊架、管廊支架、滑动隔热管托、导向隔热管托、固定管托、导向管托、隔热管托、焊接式管托、L1保冷管托、T型架、U型管夹
- 主营：钢结构、净化板、活动房、球形网架、岩棉板、彩钢板、折叠房
- 主营：直缝钢管、钢管柱、格构柱、管桁架、网架、钢护筒、钢围檩、钢支撑、三通、弯头、法兰、镀锌直缝钢管、防腐钢管、钢衬四氟管、型钢柱、型钢支撑、型钢支撑活络头、锁扣钢管桩、转向节