1.Steel structure has high strength, especially high tensile strength
2.The steel structure has high strength, so the use of materials must be much smaller than that of concrete. The result is that the steel structure is light in weight. The steel structure is relatively soft, has a large period, and due to its light weight, the seismic effect of the steel structure will be relatively small, which is conducive to earthquake resistance.
3.The steel structure is composed of a single-phase material called steel. The material is uniform and the steel has good plasticity and is close to ideal elastic-plasticity, unlike the multi-phase materials of sand, stone, cement, and water in concrete. Therefore, the constitutive model of the steel structure will be closer to the actual mechanical properties.
4.Steel has good plasticity, ductility, toughness and high energy consumption.
