Rising Steel structure
The core advantages of steel structure are reflected in high construction efficiency, superior earthquake resistance, environmental protection and energy saving. The following is a specific analysis:
1. Material performance advantages
High strength and light weight
The strength of steel is more than 3 times that of concrete, and the density is only 1/4 of that of concrete. Therefore, the cross-section of steel structure components is small and the weight is light, which is suitable for large-span buildings (such as factories, bridges) and high-rise buildings, while reducing the foundation requirements.
Excellent earthquake and wind resistance
The uniformity and ductility of steel enable it to withstand dynamic loads and earthquake shocks. Steel structures can absorb energy through plastic deformation during earthquakes to avoid sudden collapse, and their earthquake resistance is significantly better than traditional structures.
2. Construction and economic benefits
3. Fast construction speed and high degree of industrialization
The components can be prefabricated in the factory and assembled on site, and the construction period is shortened by more than 1/3 compared with concrete structures. For example, the main structure of a 1,000 square meter building can be completed in just 20 days.
More comprehensive economic efficiency
Although the unit price of steel is relatively high, its lightweight characteristics reduce the foundation cost, shorten the construction period and reduce labor costs, and the materials can be 100% recycled, so the cost of the whole life cycle is more advantageous.
3. Environmental protection and sustainability
Green environmental protection
Reduce the amount of sand and gravel during construction, recycle steel during demolition, and reduce construction waste by more than 70%, which meets the needs of low-carbon development.
Flexible energy-saving design
Combined with materials such as sandwich panels, the thermal insulation performance is improved by 50%, meeting the energy-saving standards of modern buildings.
4. Design flexibility
High space utilization
Steel structures can reduce the number of load-bearing columns, realize large-span design, increase the effective indoor use area by about 6%, and the partition walls can be flexibly adjusted. Summary: Steel structures have significant advantages in high-rise buildings, industrial plants and earthquake-resistant designs, but their corrosion resistance and fire resistance need to be protected by coatings. With technological advances, steel structures are becoming an important development direction for the construction industry.