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Prefabricated light steel construction - dark horses in the construction industry

Time: 2019-02-21
Summary: What you don't know about prefabricated light steel buildings!
What is a prefabricated light steel structure?
The prefabricated light steel structure is also used as a prefabricated light steel structure housing. The main material is the light steel keel synthesized by cold rolling technology. After accurate calculation and supporting support and combination, it can replace the traditional housing.
Assembled light steel construction has outstanding advantages over traditional homes.
1. The degree of mechanization of the project is high, and the prefabricated light steel building structural parts are highly commercialized.
2. Prefabricated light steel construction speed is fast, does not affect nearby residents, and is conducive to civilized construction.
3. Prefabricated light steel construction is an environmentally friendly and sustainable product.
4. Prefabricated light steel structure has good self-weight and good seismic performance.
5. The comprehensive economic index of prefabricated light steel structure is not higher than that of reinforced concrete structure.
6. Compared with brick-concrete buildings, prefabricated light steel structures can avoid waste of resources caused by brick burning.
7. Since the wall thickness of the light steel structure is smaller than the wall thickness of the brick-concrete structure, the prefabricated light steel structure can increase the effective use area. Prefabricated light steel structure and reinforced concrete shell can be recycled compared with prefabricated light steel structural steel, but it can not be recycled. It must be used after construction and environmental pressure, and it must be dried for 40 years before drying. Wet and damp, it is not conducive to human health. Prefabricated lightweight steel construction without concrete at all, without this problem.
9. Prefabricated light steel structure has good seismic performance. Since the seismic activity is up and down, the light steel structure connected to the m-shaped steel forms a safe and stable box, which does not endanger personal safety due to the collapse of the wall or the collapse of the floor due to the floor. earthquake
10. The construction of prefabricated light steel buildings adopts dry construction, which will not cause waste of water resources and save costs.
The gap between dreams and reality: the practicality of prefabricated light steel buildings.
Although the price has dropped a lot, prefabricated light steel buildings are still more expensive than bricks. Regular maintenance is required. Corrosion-resistant steel is more difficult than brick and concrete red bricks. Especially in coastal areas, it is often eroded by rainwater and easily corroded. Prefabricated light steel structure has not yet unified national standards, mixed quality, quality disputes are difficult to deal with, nowhere to complain. These have made people more worried about this problem, so many people before building lightweight steel structure assembly buildings.
You need to know about prefabricated light steel construction.
The prefabricated light steel structure faces new challenges and opportunities. From the construction of several opinions on further strengthening the urban planning management work to the national annual government work report, the prefabricated light steel structure has been promoted from "stable" to "promotion" for more than one month. “A policy change is included to promote the consensus of prefabricated light steel construction and new requirements for the application of prefabricated light steel structures. From the application of prefabricated light steel construction in China for more than 30 years, the structural system is relatively mature and supports Prefabricated buildings, rapid development of the city's super high-rise buildings and cultural stadiums, achieved remarkable results, using factory prefabrication and on-site assembly as the production methods of building components and accessories, which is the pipeline for industrial buildings. According to the report, by 2020, prefabricated light steel construction will account for more than 30% of the new construction area, which indicates that steel construction will become a "new leading role."
The market for prefabricated light steel construction applications has broad prospects.
The 2018 government work report "two sessions" proposed to promote the "four major" of the eastern, central and western regions to coordinate the development of the Northeast, focus on building a "region", coordinate the development of Beijing-Tianjin-Hebei region, the Yangtze River economic development strategy "three", the foundation Facilities, industrial layout, environmentally friendly production, etc., countries will continue to increase investment, will drive the development of new urbanization scale and prefabricated light steel construction applications and market space will continue to expand.
In the process of promoting people-oriented urbanization, the building area of ​​residential buildings will reach 60-70% of the newly built building area each year. The new field of prefabricated light steel construction is strongly promoted by technicians with the following characteristics:
1. The application field has shifted from urban landmarks to people's living projects, from the past “high-tech, special” projects to residential construction, such as schools, hospitals and affordable housing.
2. The development of urban real estate industry has been promoted to the construction of small towns in rural areas and earthquake-stricken areas. Construction of 6 million shanty towns and 3.14 million households in dangerous rural areas has been completed.
In these light steel residential areas suitable for prefabrication, companies must develop and produce suitable market needs, customer satisfaction and functional housing, leading consumers' lives and consumption will be through product quality and performance changes, through enterprise technology, materials and industry. Chain alliance, cooperation, application of short-board prefabricated light steel structure, reduction of professional system integration products, steel structure housing cost, development of physical product manufacturing, enterprise cooperation research and development, advocating artisan spirit, making fine products, improving steel structure residential refinement, standardized manufacturing Level. In order to promote the industrialization process of prefabricated light steel buildings, improve the system integration construction and management level of steel structure buildings, reduce R&D and product costs, achieve good results, accelerate construction period and improve quality.
China's famous prefabricated buildings are classic.
1. China Great Wall of Antarctica: Built in 1985, the prefabricated steel structure uses new materials and technologies, such as polyurethane composite panels and quick-setting concrete, and integrates transportation and construction methods. The overall designer, Bian Zongshu, completed the design of the architecture, structure and architectural organization.
2. Xi'an Greenland Center: The steel structure of the building mainly includes the outer frame steel structure of the tower, the inner reinforcing steel column and the core tube steel beam, the hanging rod truss, the buckling constraint support, and the curtain wall truss tower top.
3. Hangzhou Lottery Square: The project design is novel and unique. The vertical structural system and the floor structure system are selected to make the structure have sufficient seismic capacity and comfortable operation. On the side of the building, the frame oblique column around the structure makes the visual impact of the entire building structure. Stronger.
      In addition to the above-mentioned famous prefabricated buildings, the new environmentally friendly light steel villas manufactured by Dalian Guangtong Steel Structure Co., Ltd. are also in the category of light steel structure buildings. The prefabricated light steel villa is made of Q235B material. The number of layers can be customized according to the customer's wishes. The seismic strength can reach 7 grades. The surface is sandblasted and derusted to achieve the Sad3 grade. It is made of paint epoxy primer and polyurethane topcoat for anti-corrosion treatment. And has the following advantages: the structure is firm and stable; the construction speed is fast, the cycle is short, the efficiency is high, and it is not affected by the season; the ideal heat insulation performance; excellent seismic performance and durability; environmental protection, saving time and effort, and flexibility.
     In general, everything has two sides. Just like the yin and yang of the Chinese Taiji Bato, the overall prefabricated light steel structure has advantages over the disadvantages, and the advantages of the people are more than the disadvantages. This building deserves the national advocate and also satisfies people's Demand, the choice of prefabricated light steel structure in the future is bound to be a trend.

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