The truss structure in steel structures has been widely used in modern architecture, industrial facilities and other fields due to its unique mechanical properties and engineering advantages. Its main advantages are reflected in the following aspects:

1. Excellent mechanical performance. The truss structure is composed of triangular elements, which have extremely high geometric stability and can effectively disperse loads. Each member mainly bears axial force (tension or pressure), and the material strength is fully utilized. Compared with solid web beam structures, it saves more steel and can achieve larger spans.
2. Economically efficient and cost-effective. The truss structure uses less steel and has a light weight, which can significantly reduce material costs. It has a high degree of prefabrication, which facilitates factory processing and rapid on-site assembly, shortens the construction period, and reduces construction costs. In addition, lightweight design also reduces the requirements for the foundation, further saving on foundation costs.
3. Large span space with flexible design. The truss structure is suitable for large-span buildings, such as sports halls, exhibition halls, airport terminals, etc., and can provide open column free space to meet diverse functional needs. Meanwhile, the truss form can be designed as parallel chord, arch or curved shape, balancing structural performance and architectural aesthetics.
4. Strong earthquake resistance and good durability. Steel has excellent ductility, and the overall stiffness of truss structures is high, which can effectively resist seismic loads. After anti-corrosion and fireproof treatment, the steel structure truss has a long service life, easy maintenance, and is suitable for long-term use.
5. Green and environmentally friendly. Steel can be 100% recycled, in line with the concept of green building. The construction process of truss structures has minimal pollution and low resource consumption.

Steel truss structures have become an important structural form in modern engineering due to their high efficiency, economy, large-span capacity, and environmental advantages. In the future, with technological advancements, truss structures will play a crucial role in more fields