Steel Structure Engineering in The Construction Details And Quality Requirements

The selection and connection of materials for steel structure engineering factory buildings: Steel is usually divided into four categories: plates, profiles, metal products, and pipes. The construction steel used in construction projects is usually low alloy steel, carbon structural steel, and general carbon steel. Carbon steel has lower plasticity but higher hardness and strength. In steel structures, column cross-sections are generally box shaped or wide flange I-shaped, and there are also cross shaped cross-sections and so on; Most beams are made of welded or rolled "H" - shaped steel beams. If special requirements are required, they can also fit the cross-section. Before installation, welding process tests should be conducted on the main welding joints to determine the welding material and various parameters. The connection between beams and columns can be achieved through welding or high-strength bolt connection, and attention should be paid to the accuracy of the connection hole position of high-strength bolts.
The stacking and selection of steel components in the second steel structure engineering factory building, as well as the mechanical address of the device: Generally, the land area of the device structure should be 1.5 times the area occupied by the structure. According to the sequence of device flow, steel components transported from the transfer yard to the site should be equipped with loading and unloading machinery and placed within the rotation radius of the device machinery. If the deformation of the components is caused by transportation, it should be corrected at the construction site. Generally, tower cranes are used for the installation of steel structures, and the boom length must have sufficient coverage, and the lifting capacity must be correspondingly met to meet the lifting requirements of various high position components. The capacity of the steel wire rope should also meet the height requirements for lifting; The lifting speed has a hierarchy that can meet the requirements of the device.
The painting process of the third steel structure engineering factory building: base layer treatment. First, clean the surface of the metal and then perform rust removal. Craftsmanship treatment involves repeatedly brushing with a steel wire brush, then polishing with a fine sandcloth to make the surface shiny and smooth, and then using cotton or gauze to clean the rust powder and floating ash after polishing. If the corrosion on the surface is severe, it can be treated with a steel wire brush and shovel. For large areas of rust, a grinding wheel machine can be used to cooperate in cleaning. After the putty dries, it should be polished flat and cleaned. If the stacking time is too long, it needs to be painted again. Apply phosphating primer. Phosphating primer includes two parts: primer and phosphating solution. Brush the topcoat. When brushing the topcoat, it is important to clean and brush it regularly to ensure that the oil does not flow, is full and even, and has a bright color.