Steel structures for building construction

The plastic deformation and durability of steel structures in building construction make them less prone to sudden cracking due to excessive loads. It is incomparable to other construction materials, especially concrete construction. Nowadays, the regulations on the construction of high-rise residential buildings in China are relatively high, as the main consideration during construction is hidden dangers. Especially the destructive power of earthquake disasters can cause deformation, tearing, and collapse of buildings, and the durability of steel structure construction can precisely cache energy. Therefore, choosing steel structures as the main behavior subject for high-rise residential construction is because their actual effects are very good.

The compressive strength of steel structures themselves is relatively high, mainly in terms of compressive strength and tensile strength. From the data information, it can be seen that the compressive strength of stainless steel sheets can reach above 345Mpa, while the compressive strength of concrete still lacks 10Mpa; The tensile strength of steel structures can reach over 200 megapascals, while that of concrete is 100 megapascals.

The common reinforcement methods for increasing the section mainly include increasing the aspect ratio of the section, thickening the flange plate, and changing the I-shaped section to a box shaped section. The main reinforcement method for expanding the cross-section of steel structures is to stick steel or apply carbon fiber cloth. These two methods have relatively little damage to the structure itself, and in recent years, the development trend in China has been relatively fast, and their applications have gradually increased. However, their application in reinforcing steel structures is relatively rare, especially in normal application conditions where the service life still exists. Moreover, the engineering construction difficulty coefficient of sticking steel or carbon fiber materials is relatively high. It is necessary to solve, grind off, and moisten the surface of the original structure before sticking. When the structure is subjected to driving force loads or high temperatures, it is highly likely to cause delamination. The technical reinforcement method of prestressed steel bars outside the body refers to placing prestressed steel bars outside the cross-section of the prefabricated components of the structure to be reinforced, reducing the load efficiency of the prefabricated components according to the force transmission method of the modified structure, and improving the bearing capacity of the structure, improving the deformation characteristics of the structure, reducing the ground stress in the components, which can damage the original technical function of the engineering project structure, and then consider the requirements of new load-bearing standards and application effects. The structure consists of components such as prestressed steel bars, pipelines, coatings, conversion blocks, and steel bar anchoring system software.