Rising Steel Structure Mechanical Properties: The Hardcore Support for Safety and Stability
2025-10-24
Rising Steel StructureMechanical Properties: The Hardcore Support for Safety and Stability
The mechanical advantages of steel structures stem from the excellent properties of steel itself, forming a solid foundation for buildings to resist various loads. Steel boasts high strength and an excellent elastic modulus. Compared with traditional materials such as concrete and wood, the ratio of its density to yield strength is lower. Under the same stress conditions, the cross-section of components is smaller, and the self-weight is only one-fifth that of brick-concrete structures, yet it can bear greater loads. It is particularly suitable for large-span, super-high-rise, and ultra-heavy building scenarios. Its material uniformity is good, close to an isotropic homogeneous body, and the actual working performance is highly consistent with the engineering mechanics calculation theory, greatly improving the structural reliability.
In terms of disaster resistance, steel structures perform particularly prominently. Steel has good plasticity and toughness. After the stress exceeds the yield point, it can still produce significant plastic deformation without breaking. Under dynamic loads such as earthquakes and typhoons, it can absorb energy through its own deformation, effectively avoiding catastrophic collapse of buildings. Tests have shown that the residual deformation of steel structures in shaking table tests in 7-degree seismic fortification zones is less than 1/500, and they can resist strong hurricanes with a speed of 70 meters per second. In the practical application case during the Yunnan 5.8-magnitude earthquake, only slight cracks appeared on the external walls, fully verifying its practical value in earthquake and wind resistance. In addition, complete sealing can be achieved through welding processes, creating structures with excellent airtightness and watertightness, which can meet the needs of special scenarios such as high-pressure vessels and large oil pools.
