Introduction and Application of Steel Structure Shelf Platforms in Storage Shelves

　　It mainly consists of columns, main beams, secondary beams, floor panels, stairs, and guardrails. Complete assembly without on-site welding. The normal load-bearing capacity is between 300Kg and 1000Kg/square meter. The column should be made of round pipes with a diameter of 104-165 or square pipes with a diameter of 120-200, which have strong load-bearing capacity and low steel consumption. Platform columns with larger load-bearing capacity and higher height should be made of large H-shaped steel; The main and secondary beams can be selected based on their load-bearing needs, using H-shaped steel that is currently economically reasonable in steel structure engineering, as well as our company's developed special steel platform C-shaped cold-formed crossbeams; The floor panels are made of specialized cold-formed patterned steel plates, flat plates, or hollow panels, which adopt a buckle type structure and are fixed to the main and secondary beams. The overall structure of the platform is strong, and different floor panels can be selected according to actual needs to meet the requirements of fire protection, dust prevention, and small piece falling prevention. Lighting systems can also be installed below the floor as needed. Goods can be transported using hydraulic lifting platforms, cargo elevators, or forklifts. All materials are high-quality carbon structural steel, fully automatic surface spray anti-corrosion treatment, superior load-bearing performance, simple and elegant appearance, widely used in various industries.

　　Steel structure platforms, also known as steel structure interlayers or steel platforms, occupy a certain proportion in industrial plants and structures. Especially with the expansion of factory production workshops, building new steel structure factories is not economical and wastes time. At this time, steel structure platforms become increasingly important. Nowadays, the proportion of steel structure platform design has been increasing. Therefore, the design of steel structure platforms should not only meet the requirements of process production, but also pay attention to the rationality of the structure in terms of platform layout, material selection, manufacturing and installation.

　　1. The layout of steel platform structure mainly consists of beams, columns, planks, railings, and steel ladders.

　　The layout of steel structure platforms should pay attention to the following points:

　　(1) Meet the requirements of process production operations;

　　(2) Ensure safe passage operations;

　　(3) Fully utilize the allowable span of the pavement to arrange the beam grid reasonably

　　Generally, ordinary steel structure platforms are composed of main beams, small beams, and planks due to their small load-bearing capacity and lack of equipment. The steel structure platform beams are mainly made of hot-rolled ordinary steel sections. When the span is large, composite beams made of steel sections or welded I-beams can also be used, and triangular frames, support brackets, or directly supported on the factory building and other structures. Heavy duty operating steel structure platforms have large loads, frequent operations, large steel structure platform areas, and large, medium, and small vibration loads directly placed on the steel structure platform. Their structure is usually composed of independent column grids, main beams, secondary beams, small beams, and planks. The steel platform structure has an independent support system, which is laterally connected to the frame columns of the factory building structure to ensure the integrity of the steel platform structure.

　　2. Steel platform structure columns and inter column support

　　Steel platform columns should generally be designed as equal section columns. The commonly used solid web column forms include hot-rolled ordinary steel, I-beams with reinforced flanges, or steel pipes. If necessary, it can also be designed as a combination column form composed of two channel steels. Steel platform columns are generally designed as axially compressed components. The slenderness ratio of the column should not exceed 150, and the overall length can be assumed to be 80-120. The upper and lower ends of the column are generally designed as hinged joints. For platform columns that bear large loads, the upper end should be designed as hinged and the lower end should be rigidly connected. The thickness of the column base plate shall be calculated and determined based on the bending moment generated by the counter pressure of the column foundation on the bottom plate, but shall not be less than the smaller thickness of the column limb and 10mm. For workshops with obvious corrosion, it should be appropriately thickened. The stability of independent steel platform structures is generally ensured by inter column support. The support should be arranged in the middle of the column.

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