Prospect of domestic precast buildings
From the information publicly disclosed by various provinces and cities, the first echelon of national development belongs to Shanghai, Changsha and other regions, especially Shanghai, where the proportion of precast buildings has reached 63%; The second echelon includes Hunan, Jiangxi, Jiangsu, Zhejiang, Shandong, Anhui, Beijing and other places.
At present, domestic precast buildings are still in the primary stage of development, and the cost problem is still the core of the industry development.
On the other hand, affordable rental housing provides stable growth for precast buildings.
Especially in the precast interior decoration of residence, apartment, hotel and government housing, the precast kitchen and bathroom play an important role! The short-term cost problem has been preliminarily solved, and the long-term development advantages are obvious.
The supporting industry chain has developed rapidly, and the short board has been rapidly supplemented.
According to statistics, in the first half of this year, newly started precast buildings in China accounted for more than 25% of the newly built building area, and the cumulative construction area of precast buildings reached 2.4 billion square meters.
The proportion of precast buildings has reached about 10%, showing a trend of radiating from Shanghai and Changsha to the surrounding areas; Although the development proportion of the remaining 20 provinces is not high, they also achieved a breakthrough of 0 in 2017.
A number of policies define the main application status of precast buildings in affordable rental housing.
Driven by the transformation of building industrialization and the 3060 dual carbon target, as well as the gradual establishment of the precast building supporting industry, the efficiency improvement brought by experience replication, and the initial success of the cost problem solving path, China’s precast buildings will usher in the opportunity for long-term development…
Next, we will adhere to the principle of giving priority to ecology and saving, implement the goal of carbon peak and carbon neutralization, increase the promotion of building energy conservation, green buildings and green construction, accelerate the green and low-carbon transformation of urban and rural construction, and make “built in China” stick to the green label to contribute to building a beautiful China.
In the future, precast buildings will usher in a period of accelerated development.
During the “Fourteenth Five Year Plan” period, 40 key cities initially planned to add 6.5 million affordable rental housing units.
on September 14, the Propaganda Department of the Central Committee held a series of news conferences themed “China’s Decade”.
It is estimated that during the “Fourteenth Five Year Plan” period, the precast building area of new affordable rental housing is about 540 million square meters, the market scale is about 1.2 trillion yuan, and the affordable housing drives the construction of precast buildings by about 12%.
The precast construction cost of some construction enterprises has been equal to or even lower than the traditional cast-in-place mode.
They are more energy-saving and environment-friendly, and conform to the concept of green energy-saving buildings.
Li Rusheng, chief engineer of the Ministry of Housing and urban and rural construction, said that the construction sector is an important area of China’s energy consumption and carbon emissions, as well as an important force to achieve carbon peak and carbon neutrality.
At present, the precast buildings in China have passed the 0-1 stage in general and entered the 1-N primary development stage, and gradually formed a echelon development trend with the Yangtze River Delta as the core to the surrounding areas.
National precast buildings are developing rapidly from point to area.
Compared with traditional buildings, precast buildings have very prominent advantages.
Since the General Office of the State Council issued the Guiding Opinions on Vigorously Developing Fabricated Buildings in 2016, precast buildings have developed rapidly.
With the gradual deepening of relevant policies on precast buildings, various PC components, construction techniques, supporting equipment and other fields related to the main body of precast buildings have been greatly improved.
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As an important plus item of precast buildings, the precast interior decoration has also been applied in the research and development of new materials.
In the future, with the rapid increase of traditional labor costs and the release of the scale effect of the precast construction industry, the cost advantage will be further highlighted.
They can maximize project quality, reduce potential safety hazards, reduce labor costs, improve work efficiency, and shorten the construction period.
However, after several years of cultivation, the cost bottleneck problem has been broken through.
