Steel structure is composed of steel material, is one of the main types of building structures. The structure is mainly composed of steel beam, steel column, steel truss and so on, which are usually welded, bolted or riveted. Because of its light weight and simple construction, it is widely used in large factories, stadiums, high-rise and other fields.
The characteristics of the steel is of high strength, light weight, good integral rigidity, deformation ability, it is used in the construction of large span and super high and super heavy buildings especially suitable; homogeneous and isotropic material, an ideal elastic body, the most consistent with the basic assumption of the general engineering mechanics; material has good plasticity and toughness that can have large deformation, can well withstand dynamic loads; short construction period; the high degree of industrialization, can carry out specialized production of high mechanization degree.
Steel structure of high strength steel, greatly improve the yield strength of steel rolling; in addition to the new varieties, such as H steel (also called wide flange steel) and T shaped steel and steel plate to meet the needs of a large span structure and high-rise building.
There are no bridge steel structure, the building itself is not such, clever special connections to solve the problem of building cold bridges by using the technique of the cable truss structure; small and water pipes through the wall, construction decoration is convenient.