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Influence of cold bending machine and cold bending technology in construction

2019-05-15

The construction industry is a large user of cold bending machines and cold-formed steel. At present, the annual total output of cold-formed steel in the world is more than 50 million tons, of which 40-60% is used in the construction industry. In recent years, in order to meet the growing housing needs of the people, promote the modernization of the housing industry, and improve the quality of housing, the state has introduced many guiding policies to encourage residential technology innovation and vigorously promote advanced and mature new materials, new technologies and new processes. , to build a low-rise residential building with light steel structure. Construction conditions in tunnel construction are relatively common. For the steel arch processing of tunnels used for initial support, most domestic construction companies still use more traditional methods.
Cold bending machine
Light steel components are usually formed by cold- rolling cold-rolling of galvanized or galvanized steel sheets , and the cross-sectional shape is usually C-shaped and grooved. The thickness of the steel sheet may vary depending on the requirements of the structure, and the length of the member may be determined as desired. The light steel components are made accurately, and the components are regularly perforated during the bending process to facilitate the passage of hydroelectric lines and pipes and lateral reinforcing members. Although the bearing capacity of a thin steel sheet itself is not high, its ability to resist bending and compression is doubled by cold bending into different shapes (such as C type). Therefore, the bearing capacity of a light steel component is mainly determined by its cross-sectional shape, not the thickness of the sheet. This constitutes its light weight and high strength. Moreover, steels protected with this metal coating will not rust during construction and use.
The technology of light steel structure is mature, and the galvanized steel used in the building structure has excellent corrosion resistance and long-term capping, and its service life under normal use can exceed 50 years. The seismic performance of light steel structures is far superior to traditional concrete and brick-concrete homes. The structure of the light steel structure is light in weight, and the weight per unit area is only 1/4 of the weight of the brick-concrete structure of the same area. At the same time, it also brings the basic processing convenience and is suitable for most geological conditions. It is especially suitable for soft geological conditions such as thick layer of coastal silt, high water content and large amount of consolidation and compression. Reasonable architectural design makes light steel structure houses have good fire performance. The interior walls and ceilings, all wrapped in fireproof gypsum board, make the fire performance meet the strict fire protection requirements and excellent fire safety performance.
Due to the large-scale use of factory-processed light steel structure houses and on-site assembly installation, the construction site is almost entirely on-site operation of the cold bending machine, which greatly reduces the construction period. After the completion of the foundation construction, the structural capping can usually be completed in more than one month , and the exterior and equipment installation can be completed within two or three months. With the increasing attention to environmental issues, the construction industry has made tremendous contributions to the growth of the national economy, and the negative impact on the environment has increasingly attracted people's attention. At the same time, consumers are increasingly concerned about the environmental performance of their homes, whether it will have an adverse impact on the occupants. In this respect, it is the advantage of light steel structure housing. The construction of light steel structure technology is far more comfortable than traditional houses, and most of the waste generated during the construction process can be recycled.

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