Compared with the structure of other materials, the steel structure has the following characteristics:
First, the light weight of the steel structure
Although the bulk density of steel structure construction is larger, its strength is much higher than that of other building materials alone. Therefore, when the loads and conditions are the same, the steel structure is lighter than other structures, which is convenient for transportation and installation and can cross more Big span.
Second, steel plasticity and toughness
Good plasticity, the steel structure will not be broken due to accidental overload or partial overload and sudden rupture. Toughness, then the steel structure of dynamic load adaptability. These properties of steel provide a guarantee for the safety and reliability of the steel structure.
Third, the steel is more homogeneous and isotropic body
The internal structure of the steel is relatively uniform, very close to homogeneous and isotropic body, within a certain range of stress is almost completely elastic. These hypotheses in performance and mechanics calculations are in good agreement with each other, so the calculated results of the steel structure are more in line with the actual stress conditions.
Fourth, the manufacture of steel structure is simple, easy to adopt industrial production, construction and installation of a short cycle
Steel structure by a variety of profiles, making simple. A large number of steel structures are manufactured in specialized metal construction plants; high accuracy. Made of components transported to the site assembly, the use of bolts, and light structure, it is convenient for construction, construction period is short. In addition, the finished steel structure is also easy to dismantle, reinforce or modify.
Fifth, the sealing of the steel structure is good
Steel structure of the air tightness and watertight better.