Steel structure spiral staircase

Steel structures in buildings have a series of advantages, including high strength, light weight, good seismic performance, fast construction speed, low foundation cost, small footprint, high degree of industrialization, and beautiful appearance. In recent years, steel structures have rapidly developed in China's construction field. Steel structures are composed of hot-rolled steel sections such as H-beams, I-beams, channels, and angles, as well as cold-formed thin-walled steel sections, forming load-bearing components or structures. They are structures primarily made of steel and are one of the main types of building structures. Therefore, the steel used in steel structures must meet certain usage and design requirements.

Products involve auxiliary machinery platforms, port machinery accessories, marine products, ship steel structures, marine accessories, building steel structures, flanges, and metal accessories.

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Steel structures in buildings offer numerous advantages, including high strength, light weight, excellent seismic performance, fast construction, reduced foundation costs, small footprint, high degree of industrialization, and aesthetically pleasing appearance. In recent years, steel structures have seen rapid development in China's construction sector. Steel structures are composed of hot-rolled sections such as H-beams, I-beams, channels, and angles, as well as cold-formed thin-walled steel sections, forming load-bearing components or structures. Primarily made of steel, they are one of the main types of building structures. Therefore, the steel used in steel structures must meet specific usage and design requirements.
The foundations for steel structures in buildings are typically individual foundations with connecting beams in between. Steel structures in buildings generally include frame structures, planar truss structures, spherical reticulated shells, cable nets, light steel structures, and tower structures.
When designing foundations, consider the following: When selecting structural types, the characteristics of different structural forms should be considered. In factories, when there are large suspended loads or large-range moving loads, the use of spherical reticulated shells instead of portal steel frames may be considered. In areas with high snow loads, the roof slope should facilitate snow shedding (snow load need not be considered for slopes exceeding 50 degrees).
When engineering conditions permit, incorporating bracing within the frame will result in a more efficient structure compared to a simple rigid-jointed frame. For buildings with large roof spans, prefabricated tension-dominant suspension bridges or cable net structural systems can be selected.
In the design of high-rise residential steel structures, steel-concrete composite structures are often used. In high-rise residential buildings with high seismic design intensity or irregular shapes, simply selecting a core tube plus frame system solely for economic reasons should be avoided if it compromises seismic performance. A system with surrounding oversized SRC columns, primarily supporting the frame, is preferable.
Structural layout should consider the system characteristics, load distribution, and properties comprehensively. Generally, uniform flexural stiffness, a clear structural mechanics model, and limiting the influence range of large or moving loads are desired, allowing them to transfer to the foundation along the most direct path. The distribution of inter-column bracing should be uniform.
The centroid should be as close as possible to the line of action of lateral forces (wind, earthquake). Otherwise, structural torsion should be considered. Lateral resistance should have multiple lines of defense, such as a braced frame structure, where each column head should be able to independently support at least 1/4 of the total horizontal force.

Products involve auxiliary machinery platforms, port machinery accessories, marine products, ship steel structures, marine accessories, building steel structures, flanges, and metal accessories.

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Auxiliary machine, port machinery accessories, marine products, ship steel structure, marine accessories, building steel structure, flange, metal accessories

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