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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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What are the applications of higher-order hyperstatic structure in architecture?

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 The application of higher-order hyperstatic structure in construction is very wide, mainly because it has the characteristics of excess constraint, geometric invariance, complex force state, various structural forms, good stability and strong adjustment ability, etc., which can satisfy the high requirements of modern construction for structural stability, load carrying capacity and safety. The following are some specific application examples:

I. Bridge engineering

Bridges are one of the important fields for the application of high superstatic structures. Through the use of higher-order hyperstatic structure, the stability and bearing capacity of the bridge can be increased, so that it can withstand larger loads and deformation.

III. large-span building



Large-span buildings are also an important field for the application of high superstatic structures. With the continuous development of modern construction technology, people's demand for building space is getting bigger and bigger, so the design and construction of large-span buildings become more and more important. The higher-order hyperstatic structure can meet the needs of large-span buildings for structural stability and load-bearing capacity. For example, in large-span buildings such as gymnasiums, exhibition halls, etc., complex truss structures and other higher-order hyperstatic structures can be used to improve the safety and aesthetics of the buildings.

III. Complex Truss Structure

Complex truss structure is an important form of higher-order hyperstatic structure. The design of complex truss structure can greatly reduce the self-weight of the structure, so as to reduce the material consumption and construction cost. At the same time, due to its strong bearing capacity, it can meet the application requirements of large span and high load. In the field of construction, complex truss structure is often used in large-span buildings, stadiums and other places to improve the safety and aesthetics of buildings.



Other Applications

In addition to bridges, large-span buildings and complex truss structures, high sub-superstatic structures are also widely used in other building types. For example, in high-rise buildings, in order to increase the stability and seismic performance of the structure, the form of high-order super-static structure can be used; in tunnel engineering, in order to enhance the bearing capacity and stability of the tunnel, the high-order super-static structure can also be used, and so on.

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