Shandong Mia Cultural Products Co., Ltd.

　　Steel structures are structures made of steel materials, and they are one of the main types of building structures. The structure is mainly composed of components such as steel beams, steel columns, and steel trusses made of steel sections and steel plates, and uses rust prevention and anti-rust processes such as silanization, pure manganese phosphating, water washing and drying, and galvanizing. The components or parts are usually connected by welds, bolts, or rivets. Because of its light weight and simple construction, it is widely used in large factories, venues, and super high-rise buildings. Steel structures are susceptible to rust; generally, steel structures require derusting, galvanizing, or coating, and require regular maintenance.
　　1. High material strength, light weight
　　Steel has high strength and high elastic modulus. Compared with concrete and wood, the ratio of its density to yield strength is relatively low; therefore, under the same stress conditions, the steel structure components have small sections and light weight, facilitating transportation and installation and are suitable for structures with large spans, high heights, and heavy loads.
　　2. Steel has good toughness, ductility, uniform material, and high structural reliability
　　Suitable for bearing impact and dynamic loads, it has good seismic performance. The internal structure of steel is uniform and close to an isotropic homogeneous body. The actual working performance of the steel structure is more in line with the calculation theory. Therefore, the steel structure has high reliability.
　　3. Steel structures have a high degree of mechanization in manufacturing and installation
　　Steel structure components are easy to manufacture in factories and assemble on site. Factory mechanized manufacturing of steel structure components has high precision, high production efficiency, fast on-site assembly speed, and short construction periods. Steel structures are a highly industrialized type of structure.
　　4. Steel structures have good sealing performance
　　Because welded structures can be completely sealed, they can be made into high-pressure vessels, large oil tanks, and pressure pipelines with good air tightness and water tightness.
　　5. Steel structures are heat-resistant but not fire-resistant
　　When the temperature is below 150℃, the properties of steel change little. Therefore, steel structures are suitable for hot workshops, but when the surface of the structure is subjected to thermal radiation of about 150℃, heat-insulating plates should be used for protection. When the temperature is 300℃-400℃, the strength and elastic modulus of steel decrease significantly, and when the temperature is around 600℃, the strength of steel tends to zero. In buildings with special fire protection requirements, steel structures must be protected with fire-resistant materials to improve the fire rating.
　　6. Steel structures have poor corrosion resistance
　　Especially in humid and corrosive environments, it is easy to rust. Generally, steel structures require derusting, galvanizing, or coating, and require regular maintenance. For offshore platform structures in seawater, special measures such as "zinc block anodic protection" are required for corrosion prevention.
　　7. Low-carbon, energy-saving, environmentally friendly, and recyclable
　　Demolition of steel structure buildings produces almost no construction waste, and steel can be recycled and reused.