1. The material has high strength, good plasticity and toughness:
Steel is much stronger than other building materials such as concrete, masonry and wood. Therefore, it is especially suitable for components and structures with large spans or heavy loads. Steel also has the characteristics of good plasticity and toughness. Good plasticity, the structure will not break suddenly due to overloading under normal conditions; good toughness, the structure has strong adaptability to dynamic loads. Good energy absorption capacity and ductility also make steel structures have superior seismic performance.
2. The steel structure is easy to manufacture and the construction period is short:
The material used in the steel structure is simple and finished, the processing is relatively simple, and mechanical operation can be used. Therefore, a large number of steel structures are generally made into components in specialized metal structure factories with high accuracy. When the components are assembled on the construction site, ordinary bolts and high-strength bolts that are easy to install can be used, and sometimes they can be assembled and welded on the ground into larger units for hoisting to shorten the construction period. A small amount of steel structures and light steel roof trusses can also be fabricated on site and then hoisted with simple tools. In addition, it is relatively easy to rebuild and reinforce the completed steel structure, and the structure connected with bolts can also be demolished as needed.