What are the disadvantages of steel structure will affect the wide application of steel structure
1 steel prices are relatively expensive:
With a steel structure, steel structure engineering cost will increase slightly, often influence the choice of the owners' superstructure cost accounting for the proportion of total investment in the project is very small, the steel structure and the cost structure of reinforced concrete structure of the difference between the total investment ratio is small. In high-rise buildings, for example, the former is about 10%, while the latter is less than 2%.
Obviously, the single factor of the construction cost should not be used as the main basis of the material. If we consider all kinds of factors, especially the time limit, the steel structure will be paid more and more attention.
2 poor corrosion resistance:
The new steel structure works generally must be re - painted when necessary, higher maintenance costs. The day before the weathering steel is developed at home and abroad a variety of high performance coatings and is not easy to rust, is expected to solve the problem of poor corrosion resistance of steel structure.
3 poor fire resistance:
Steel structure fire resistance is poor, in the fire, without protection of steel structure can only be maintained for about 20 minutes. Therefore, fire protection, fire prevention measures should be taken, such as the steel structure is wrapped concrete or other fireproof material, or in the fire protection coating of surface components such as: the ongoing development of refractory steel refractory performance at home and abroad, in order to reduce the cost of fire prevention measures.
Now steel has been considered to be the material of continuous development, so from the point of view of long-term development, steel structure will have a good application prospects.
Follow us 
Mobile Website