What are the advantages of modularly designed Steel Truss and what scenarios are suitable for it?

In the field of modern construction engineering, the modular Steel Truss system is reshaping the construction paradigm of spatial structures with its unique technical advantages. This spatial structure system formed by the combination of standardized components not only continues the mechanical advantages of traditional steel trusses, but also achieves a revolutionary breakthrough in construction methods through industrialized production models.
1. The core advantages of modular design
The quality revolution brought by industrialized production
The modular steel truss adopts a factory prefabrication mode, and the components are precisely processed by CNC machine tools. The welding quality can reach the first-level weld requirements of GB/T 12467 standard. Statistics show that the size deviation of prefabricated components can be controlled within ±1mm, which is more than 80% higher than the on-site construction accuracy. The Beijing Daxing International Airport Terminal Project adopted this technology and completed the hoisting of 82,000 tons of steel structures within 6 months, setting a construction record of 500 tons of daily installation.
Exponential improvement in construction efficiency
The standardized connection node design significantly improves on-site construction efficiency. Taking the bolt connection system as an example, the assembly time of a single node is shortened from 3 hours of traditional welding to 45 minutes. The Shanghai National Exhibition and Convention Center project uses modular truss technology to shorten the overall construction period by 40%, reduce the number of high-altitude workers by 60%, and achieve a double breakthrough in safety and efficiency.
Economic advantages of the entire life cycle
The detachable characteristics of modular trusses increase the reuse rate. Data from the Excel Exhibition Center in London, UK, show that after 12 disassembly and assembly, the component loss rate of its modular truss system is only 3.8%. This feature reduces the overall cost by 25%-35% compared with traditional structures, and is particularly suitable for temporary buildings that are used periodically.
2. Analysis of typical application scenarios
In the field of large-span public buildings
Modular trusses show unique advantages in buildings such as exhibition centers and stadiums. Shenzhen International Convention and Exhibition Center uses this technology to achieve a column-free space with a span of 72 meters in a single exhibition hall, with a prefabrication rate of up to 95%. Its roof system can still maintain a deflection value of less than 0.3° under typhoon conditions, and its structural performance far exceeds the design requirements.
Emergency engineering construction field
The rapid response capability of modular trusses is particularly prominent in emergency engineering. During the construction of Wuhan Huoshenshan Hospital, the prefabricated steel trusses completed the installation of 3,000 square meters of roof trusses in 48 hours, which bought precious time for epidemic prevention and control. Its standardized components can be transported by rail containers to meet the construction needs of remote areas.
Industrial facility upgrade field
In the transformation of equipment corridor systems in petrochemical, power and other industries, modular trusses can effectively solve the problem of non-stop construction. The corridor transformation project of a refinery shortened the construction period from 90 days to 21 days through prefabricated truss units, reducing the loss of shutdown by more than 200 million yuan. Its corrosion-resistant coating technology extends the maintenance period to 15 years.
3. Outlook on technology development trends
With the in-depth application of BIM technology, modular trusses are developing in the direction of intelligence. The Shanghai Tower project has realized component RFID tracking and digital twin simulation, reducing the construction error rate to 0.05%. In terms of new materials, the application of Q460 high-strength steel reduces the weight of components by 20%, and the introduction of composite carbon fiber materials is breaking through the performance boundaries of traditional steel structures.
Modular steel truss systems are driving the construction industry into the "Lego-style" construction era. Its value is not only reflected in the improvement of engineering efficiency, but also in the reconstruction of the value system of the construction industry chain. With the advancement of the "dual carbon" goals, this recyclable construction model will surely become an important direction for the development of green buildings, providing sustainable solutions for urban renewal and infrastructure construction.