The application of large-span steel structures in construction is increasingly prevalent due to their numerous outstanding advantages. This structural framework is predicted to have exceptionally promising prospects in the future, capable of meeting the developmental trends of the era. Let’s delve into an overview of large-span structural steel with Pebsteel in the article below.
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1. What are large-span steel structures?
Large-span steel structures are a type of steel structure capable of bearing loads with a span exceeding 30 meters. This structure is often applied in special projects that demand expansive spaces unobstructed by columns, such as stadiums, airports, factories, and more.
In the context of the continually evolving modern construction industry, large-span steel structures have become a popular choice for many investors.
See more: Plate Girder In Steel Structure: Classifications & Applications
2. The characteristics of large-span steel structures
Here are some characteristic features of large-span steel structures:
- Column Spacing Optimization: The distance between columns in the structures can exceed 30m, minimizing obstruction in space and efficiently optimizing the area.
- Prefabricated Components: Factory-casted components are directly lifted upon arrival at the construction site, saving time and significantly enhancing construction efficiency.
- Industrialized Production Process: Industrial production processes are implemented, and diverse structures are integrated directly at the factory to ensure the integrity and stability of the frame.
- Adaptability to Various Building Heights: Can accommodate the needs of various building heights and different building planes.
- Compatibility with Lightweight Wall Materials: Capable of integration with lightweight, non-load-bearing wall materials, facilitating a highly industrialized construction and installation process.
- High Precision Components and Rapid Construction Processes: Parts and components exhibit high precision, and the construction lifting process is carried out rapidly.
See more: The Process of Structural Steel And Plate Fabrication
3. The advantage of large-span steel structures
3.1. Enhancing the seismic resistance of the structure
Large-span steel structure constructions exhibit excellent flexibility. Under the influence of dynamic loads, they can absorb a substantial amount of energy, thereby reducing the risk of cracking and improving the seismic resistance significantly.
See more: What Is Bracing in Steel Structures?
3.2. Adherence to green construction standards
Steel structures can be manufactured in factories and assembled on-site, reducing pollution and aligning with green standards. Additionally, construction contractors can leverage the high load-bearing capacity of steel, leading to material savings.
The resource consumption for one square meter of large-span steel structures is between 800 to 1000 kg, compared to over 1800 kg per square meter for traditional concrete buildings. Therefore, the construction and production of steel structures save over 30% in energy compared to concrete structures.
If dry construction methods are employed, the construction savings for steel structures can reach up to 30%, and dust pollution can be reduced by over 80%. When steel structures building reaches the end of their lifespan, the construction waste generated during demolition is less than 25% compared to traditional concrete structures. The removed steel components can also be recycled and reused, with a recycling rate exceeding 90%.
3.3. Reduce labor costs
The construction industry is grappling with the challenge of rising labor costs, a primary obstacle to the sustainable development of the construction sector. Large-span steel structure buildings can implement industrialized prefabrication, reducing the number of personnel required for on-site construction, easing labor allocation difficulties, and saving construction costs.
3.4. Time and cost savings
Large-span steel structure projects, being relatively lightweight, incur essential costs that are over 30% lower compared to traditional concrete and steel-framed buildings. The transportation costs for these projects are also relatively low. Along with the advantages of high strength and relatively small cross-sectional area of components, the construction area of industrial structures can increase by 5% to 8%. Moreover, the construction speed of these projects is relatively fast. Compared to concrete and steel-framed structures, the overall construction time is reduced by up to 40%, allowing for rapid deployment and reduced capital usage costs.
4. Conclusion
The information above provides a general overview of the concept, characteristics, and some outstanding advantages of large-span structural steel. Please contact Pebsteel by phone at +84 908 883531 or by email immediately at [email protected] if you require comprehensive solutions for pre-engineered steel buildings and steel structures.
