Dapeng Town Industrial Park, Tongshan District, Xuzhou City, Jiangsu Province, China
Steel structure space frame is an important building structure technology, and its material selection and processing method are crucial for processing quality and structural performance. In the following, SAFS Steel Structure Engineering Co., Ltd. will introduce the key points of steel structure space frame processing in detail from two aspects of material selection and processing method.
1. Physical parameters
When selecting the material, it is necessary to take into account such physical parameters as load carrying capacity, resistance and strength of the steel structure space frame being processed.
For large industrial buildings that need to withstand large machinery and equipment, wear-resistant, high hardness and toughness steel is required. For smaller indoor buildings, lightweight steel can be used.
In addition, the corrosion resistance and stability of the material also need to be considered. Steel is affected by natural weathering and chemical corrosion, so the above factors need to be considered in the selection of materials to avoid rust and corrosion of steel.
2. Shape and size
The shape and size of the steel structure space frame is also an important factor in material selection. Different building structures require different shapes and sizes of space frames, so the right steel material needs to be selected for each situation.
When choosing the right material, it is also necessary to consider its productivity and cost. If the size of the steel used is too large, it will lead to greater difficulty in production and higher costs, so the appropriate size should be selected on the premise of ensuring sufficient strength.
3. Linear coefficient of thermal expansion
The coefficient of linear thermal expansion is also a factor that should not be ignored in steel space frame fabrication. The linear coefficient of thermal expansion of steel material affects the precision and stability of steel space frame. Therefore, it is necessary for steel space frame fabricators to choose suitable materials according to different engineering requirements.
1. Cutting
Cutting is an essential step in the processing of steel structure space frame. In the process of cutting, attention needs to be paid to the safety of workers and the precision of cutting.
Common cutting methods are flame cutting, plasma cutting and laser cutting. Different cutting methods are suitable for different steel quality and thickness. Among them, laser cutting is widely used in some projects that require high precision due to its high accuracy.
2. Welding
Welding is an indispensable step in steel structure space frame processing. The quality of welding directly affects the strength and stability of the whole space frame.
Common welding methods include manual arc welding, gas shielded welding and submerged arc welding. Different welding methods are suitable for different materials and thicknesses. For steel structure space frame with thin material, gas shielded welding is a better choice.
3. Surface treatment
Surface treatment plays an important role in the service life and appearance protection of steel structure space frames. In the surface treatment, the oxidation resistance of the material and the color need to be considered.
Hot-dip galvanizing is a common surface treatment that creates an oxidation-resistant film on the surface of steel, thus reducing corrosion and rusting problems in the material. The hot-dip galvanized material is also brightly colored, making it easy to distinguish and identify.
In short, the main points of material selection and processing method of steel structure space frame determine the smooth running of all other processes. Therefore, in the process of processing, it is necessary to select and operate in strict accordance with the relevant points.
