Steel Structure Encyclopedia: How to ensure the wind resistance of steel structure buildings?
2025-05-26
Steel structure, as one of the core structural forms in the field of contemporary architecture, is built with steel as the main material. Steel is known for its high strength, low weight, superior overall rigidity and deformation capacity. These characteristics make steel structure show incomparable advantages in the construction of large-span, ultra-high and ultra-heavy buildings. The steel structure system is carefully processed into steel beams, steel columns and steel trusses by steel sections and steel plates, and the components are firmly connected by welding, bolts or rivets.
When it comes to the wind resistance of steel structure, its light weight and high strength are particularly critical. Compared with traditional brick-concrete structure, the self-weight of steel structure building is only one-fifth of the former, but it can easily withstand hurricanes up to 70 meters per second, providing solid protection for the safety of life and property. In the field of low-rise villas, the slope roof design generally adopts a triangular roof truss system constructed of cold-formed steel. This system forms a highly stable "plate rib structure" after enclosing the structural plate and gypsum board, which not only enhances the seismic performance, but also significantly improves the ability to resist horizontal loads. It is especially suitable for areas with earthquake intensity of 8 degrees and above.
During the steel structure design process, a three-dimensional balanced curved surface with a stable appearance and uniform stress distribution is created to cope with various mounting conditions and multiple challenges such as wind, pressure, and earthquake. Through continuous iterative optimization, it is ensured that the structure can achieve good performance in wind resistance, pressure resistance, and earthquake resistance, while ensuring overall safety. In the design stage, it is necessary to comprehensively consider factors such as the actual environment, the size of the windward surface, and the slope of the roof, calculate the wind load and the permanent live load, and flexibly set the seismic level according to project requirements, striving to achieve greater economic benefits as much as possible while ensuring structural safety.
