Abstract: civil engineering structure commonly used two materials, namely, reinforced concrete and steel for civil engineering, it should not only from the structural characteristics Angle consideration, consider the cost effectiveness of construction and construction effectiveness. This paper analyzes the steel structures in civil engineering, and the characteristics of the steel structure of the briefly elaborated construction points.
The skin of a building consists of both transparent elements (windows) and opaque elements (walls). Windows are traditionally glass, although plastics are being used, especially in schools where breakage creates a maintenance problem. The wall elements, which are used to cover the structure and are supported by it, are built of a variety of materials: brick, precast concrete, stone, opaque glass, plastics, steel, and aluminum. Wood is used mainly in house construction; It is not generally used for commercial, industrial, or public building because of the fire hazard.