Characteristics of steel structure space frame

 space frame processing for each process of space frame production have extremely strict requirements, from the space frame design need to understand the structural characteristics of the steel structure space frame to carry out, its later space frame processing production, are required for the characteristics of the steel structure of the space frame to strictly control the gatekeeper, so for the characteristics of the steel structure of the space frame how much do you know? Here we introduce the main characteristics of steel structure space frame.

1, the material is uniform, more in line with the mechanical calculation assumptions just now due to the smelting and rolling process of scientific control, the internal structure of the organization is relatively uniform, close to a variety of homogeneous, in line with the ideal elastic-plastic body. Therefore, the calculation is less uncertain, the calculation results are more reliable.

2, plasticity, toughness good plasticity: steel structure under normal conditions will not be overloaded and suddenly fracture, damage before a more obvious deformation, easy to be found. Just now, good plasticity can reduce the local peak stress, so that the stress distribution changes tend to slow down. Good toughness: steel structure is suitable to work under power load, so it is more favorable to use steel structure in earthquake zone.

3, high strength, relative light weight set the mass density of structural materials for ? The strength of the material is ƒ. Take construction steel, wood and reinforced concrete as an example, calculate the ratio of their density and strength. From the comparison of the size of the α values of the three materials, it can be seen that the α value just now is the smallest. This shows that, as a load-bearing material, just now the strength is higher and the mass is lighter. Therefore, the use of just now in the engineering structure can save materials. If the use of reinforced concrete, ordinary steel and cold-formed thin-walled type of these three materials to design a span of the same, the same load-carrying plane roof frame, the reinforced concrete roof frame is the heaviest, the ordinary type of rigid roof frame is lighter (about the weight of reinforced concrete roof frame 1/3 ~ 1/4) and cold-formed thin-walled type of steel roof frame is the lightest (only for the weight of the reinforced concrete roof frame of 1 / 10).

 


Through the roof frame design example can be seen, the same use of steel, such as different forms of steel (ordinary steel and cold-formed thin-walled section just), the design of the structure will also have a great difference in weight. The light weight of the steel structure and the small foundation load can reduce the cost of the foundation project, and also reduce the workload of lifting and transportation. Because of the high strength of steel, steel structures are suitable for large-span, towering structures, and heavy structures that carry a lot of load. However, its material strength often can not get full play, this is because in the design of components, according to the strength of the conditions required for the calculation of the cross-section is small, and according to the stability conditions or stiffness conditions required for the calculation of the cross-section of the components is large. Above is the space frame project editorial content, I hope to help you.

The development of structural space frame project building is very rapid, especially the landmark high-rise building stands in some big cities, for the development of domestic steel structure space frame project in China opened a new page. We can see from the significant growth in the number of space frame companies alone, the increase is large. Under this great situation in the country, how to take advantage of the situation and grasp the quality of design and construction, which is a very urgent issue at present. According to the current domestic situation, it is not difficult to see that this kind of steel structure space frame project, due to its wide usage and obvious advantages, has been widely used in single-story industrial plants, multi-story industrial plants, office buildings and non-load-bearing components in high-rise buildings. So what is the reason for the wide application of steel structure space frame project?

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