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[Steel Structure Dynamic] The cost of steel structure is declining. The market scale of fabricated s
Adddate: 2018-02-26 14:58:00

Steel structure in the prefabricated building obvious advantages

According to the prefabricated concrete structure, steel structure and wood structure, compared with prefabricated concrete and wood structure, steel structure has comparative advantages in many aspects and is expected to become the mainstream structure of fabricated building in the future.

From the construction and installation point of view, the steel construction cycle is short, light weight, and steel high strength, the layout can be used to open, compared with the traditional structure can increase the use of area rate of 5% -8%.

From the application point of view, not only applies to housing and commercial buildings, but also can be used in public infrastructure, its plasticity and toughness can be used for high-rise and long-span structure, a wider scope of application.

From the performance point of view, the seismic strength of steel structures is high (6-9 level), and the system nodes of the high-strength screw assembly make the waterproof performance better than the precast concrete and the overall performance is better.

From the energy conservation and environmental protection point of view, steel construction materials removed after repeated recycling, more green.

With the housing industry becoming a new growth point of China's economic development, housing industrialization will be the only way for the development of housing industry. The prerequisite for industrialization of housing is to have new technologies, new materials and new systems that are compatible with the industry. As the steel structure system is easy to realize industrialized production and standardization of production, and the matching wall materials can adopt new energy-saving and environment-friendly materials, so studying the complete set of technology of steel structure system housing will greatly promote the rapid development of residential industrialization .

Steel structure costs dropped to ordinary residential level

According to the data of 2013, the cost of civil construction + installation is 2216 yuan / m ², which is only higher than that of ordinary residential buildings of 147.12 yuan / ㎡. With the gradual reduction of the construction cost of steel houses and technical progress, the average cost of steel houses has been basically unchanged. Since the demographic dividend caused by the lower labor costs in our country, as the population structure of our country changed, the demographic dividend has been gradually disappearing, the labor cost continues to rise, the artificial demand is lower and the industrialization is more advanced. The cost of steel structure housing and traditional concrete Cost has been basically flat.

 

In 2025, the scale of fabricated steel structure is expected to reach 3 trillion

At present, the assembly-type buildings in our country occupy only about 3% of the new construction area, of which the steel structure is less than 1% and the target incremental space is huge from "the proportion of prefabricated buildings in the new buildings will reach 30% in about 10 years" At the policy level, the central and local governments continued to push forward and the penetration rate of fabricated buildings in our country accelerated.

At present, the assembly-type buildings in our country occupy only about 3% of the new construction area, of which the steel structure is less than 1% and the target incremental space is huge from "the proportion of prefabricated buildings in the new buildings will reach 30% in about 10 years" At the policy level, the central and local governments continued to push forward and the penetration rate of fabricated buildings in our country accelerated. 

In accordance with the requirements of the 13th Five-Year Plan for Assembled Building Proposal, Assembled Assembled Buildings Over 15% of Newly Built GFA in 2020, and assuming that steel structure accounts for half of the prefabricated buildings, ie 7% The annual fabricated steel structure area is expected to reach 380 million square meters, calculated at 2,216 yuan per square meter, and the market size will exceed 800 billion yuan. 

In addition, according to the general requirements of the policy, the proportion of "prefabricated buildings will account for 30% of new construction area and 15% of fabricated steel structures within the next 10 years", the area of ​​newly-added residential buildings is expected to increase by 3% annually to 10 years, Based on the current average price of fabricated buildings, the market size of fabricated steel structures will reach 2 trillion yuan in 2025. 

Market Capacity of China's Assembled Steel Structure in the Next 10 Years (Unit: 100 million square meters,%, 10,000 square meters, yuan, 100 million yuan)

▲ The above data and analysis are from "Prospect Industry Research Institute released" 2017-2022 China steel structure industry market outlook and investment planning analysis report. "

(Source: Precast Building Network)

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