Pipe Truss

A Pipe Truss is an efficient spatial structural system composed of circular or rectangular hollow steel pipes connected at joints (nodes) to form triangular or polygonal configurations. Engineered to span large distances while minimizing self-weight, it excels in resisting axial tension, compression, and bending forces, making it a preferred choice for stadiums, airports, exhibition halls, and industrial workshops requiring expansive, column-free spaces. Fabricated primarily from high-grade structural steel (e.g., ASTM A500, A53, Q355, Q460), its tubular members offer superior torsional stiffness and corrosion resistance compared to open-section truss components (e.g., angle irons, I-beams).

The core advantage of the pipe truss lies in its structural efficiency: the triangular truss configuration distributes loads evenly across all members, converting complex forces into simple axial tension or compression—maximizing material utilization. The hollow pipe design provides an exceptional strength-to-weight ratio, enabling spans of 30 to 150+ meters with significantly less weight than concrete or solid-steel structures. This lightweight characteristic reduces foundation loads and simplifies transportation and on-site installation, lowering overall construction costs. Additionally, the aerodynamic circular pipe profile minimizes wind resistance and vortex-induced vibration, critical for large-span open-air structures.

Key features include precision fabrication: steel pipes are cut, bent, and welded using advanced techniques (submerged arc welding, orbital welding) to form truss members, with nodes connected via bolted or welded joints—ensuring structural integrity. Modular prefabrication allows for off-site assembly of truss segments, streamlining on-site erection via cranes or lifting systems. The closed pipe sections offer inherent corrosion protection (enhanced by galvanization or epoxy coatings) and can accommodate utilities (cables, pipelines) within the hollow interior. Fire-resistant treatments extend service life to 50+ years in diverse environments.

Typical applications span stadium roofs, airport terminals, exhibition center halls, industrial workshop canopies, and long-span bridges. Balancing lightweight design, high load-bearing capacity, and architectural versatility, the pipe truss enables engineers to realize bold, column-free spatial designs while meeting strict safety, performance, and cost-efficiency standards for modern large-span construction.