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Why is steel construction the preferred choice for large-span spatial structures?

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When gazing upon grand stadiums , airport terminals, or exhibition centers, we are often awestruck by their vast spaces. Behind such large-span structures lies a nearly universal choice—steel construction. This is no coincidence, but stems from steel's unparalleled engineering advantages. stadium High Strength, Lightweight: Pushing Boundaries Beyond Limits The core advantage of steel lies in its perfect blend of exceptional strength and lightweight properties. Compared to concrete, steel boasts an outstanding strength-to-weight ratio. This means that for buildings requiring vast column-free spaces, steel structures can achieve greater spans with smaller member cross-sections, significantly reducing the building's self-weight. Consequently, foundation requirements are lowered, enabling the ultimate liberation of space in a cost-effective manner. Exceptional Performance, Conquering Complex Challenges Steel's outstanding toughness and ductility enable it to better withstand dy...
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The economic benefits brought by steel structure

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 "A new building system can open up the industry line between construction, metallurgy, machinery and equipment manufacturing, new building materials and disaster prevention and reduction industries, become a national strategic resource reserve, and integrate innovation into a strategic emerging industry." Steel structure houses are conducive to economic transformation and upgrading and sustainable development, and need to accelerate cultivation and development." This is a few years ago, the industry is generally optimistic about the steel structure building system.

Steel structure residential general system for residential use, with unique advantages, including: first, light weight. Steel structure housing can reduce the building weight of about 30%-25%, which is conducive to the construction of high-rise buildings, especially in places with low geological carrying capacity and high seismic intensity, and its comprehensive economic benefits are better than ordinary residential building systems. Secondly, the layout is flexible, the room is large, and the room type is rich, which can increase the construction area by 3%-25% to 5%-25%. Due to its full flexibility, modifiability and safety, it is conducive to meeting the needs of modern life. Third, it is easier to achieve industrialization, standardization, mass production, and improve the structure of the labor week.



Steel structure steel is facing the new challenges of the rapid development of China's steel structure industry, and the increasing amount of steel used in steel structure has also accelerated the production and research and development of steel used in steel structure. However, compared with developed countries, there are still many gaps:

The proportion of high-performance steel used in steel structures needs to be improved. In addition to the advantages of light weight, high strength, excellent material properties, high industrialization of production and installation, suitable disassembly, and good durability, building steel structure also has the characteristics of saving resources, reducing carbon emissions, recycling and so on. Therefore, the steel used in the steel structure also needs to be light in weight, high in strength and corrosion resistance. However, at present, some steel structure projects still have the defects of "stupid, heavy and large", and high-grade structural steel is needed to change the status quo. For example, carbon structural steel (Q235) can be replaced by low-alloy high-strength structural steel.

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What is a coal bunker?

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What is the difference between a single-layer reticulated shell and a double-layerreticulated shell?

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Suspension structures

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 A suspension structure is a structural form that carries roof loads through a series of high-strength steel cables. Its main load-bearing member is the cables, which are usually steel cables made of high-strength steel wires. The roof of the suspension structure is generally light and thin, and its shape can be very flexible, able to realize the large span across. For example, in the roofs of some large conference centers or exhibition halls, the suspension structure can create unique shapes such as double-curved paraboloid or single-curved paraboloid, which make the building have a strong artistic influence. Suspension structures require a stable support structure to anchor the steel cables, usually using reinforced concrete columns or steel columns as support. And in order to ensure the stability of the structure, it is also necessary to set a certain amount of prestressing, so that the steel cables are in a tensioned state before they are subjected to loads. Scope of applicatio...
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