How to choose materials for steel structure houses in Chongqing

How to choose the material of steel structure house? In the design of steel structure house, reasonable selection of materials is also one of the cost savings of steel structure house engineering, because it makes full use of high-efficiency steel, such as flange rolled steel width H and thin wall to obtain more Great economic benefits, for example: Steel frame shells choose 1.H steel and T steel: Due to the thicker edges of the flange and the strong components. It can be used as individual parts in steel structures (beams, lattice columns and ropes, etc.) without combined machining. Construction works can be reduced by 1/2-2/3; when used as lattice ropes, it is more economical to store reinforcement panels and filler panels (or splice panels). 2. Thin steel wall. Suitable for general steel structure platform beams, wall frame beams, floors and light ceilings, etc., saving 14%-20% higher than ordinary steel. 3 Material selection of steel frame shell 3. Steel pipe (round pipe Cao and square pipe): This is especially economical for axial compression members because steel pipe has a larger turning radius when the cross-sectional area is the same. It is more suitable for steel structure projects such as tower structures and roof structures. When used in roof lattice structures, about 10% of steel can be saved due to the reduction of reinforcement plates and the saving of cross-section. 25% of steel can be saved when slanted rods are used instead of round steel pipe supports. In addition, in corrosive gas environments, the use of steel tube construction is more advantageous. 4. Cold-formed steel: It is mainly used in the engineering of light steel structures, and its thickness is usually 2-6 mm, which can save 10% of the steel buckle for rolling.