"Lego" on the factory building site
The era of "prefabricated building" is coming. How much do you know about "it"?
What is a prefabricated building?
The standard explanation is that a large amount of on-site work in the traditional construction method is transferred to the factory, where the building components and accessories are processed in the factory, and then transported to the construction site for assembly and installation.
In other words, the floors, stairs, balconies, and even walls that were originally installed on the construction site can be built brick by brick by workers instead of building them on the construction site. Instead, they can be shipped to the factory after the finished product is produced. Assembly on site.
This new construction method is more economical, greener, smarter, and more beautiful. It is a transformation of the construction method and the general trend of the development of the construction industry.
Why develop prefabricated buildings?
From an industry perspective, this is an innovative change in construction methods.
From the perspective of every citizen, this is a modern construction method that improves the quality and quality of the buildings we live in.
From a more macro perspective, this is also the main measure to deepen supply-side structural reforms, further improve environmental quality, cultivate modern construction industry clusters, and promote the conversion, transformation and upgrading of the construction industry’s new and old momentum.
On September 23, the Chengdu prefabricated construction industry development meeting was held at the Meihao Intelligent Manufacturing Prefabricated Building Industry Base in Jintang County. Relevant departments, industry associations and enterprises exchanged experience in the development of the entire prefabricated building industry chain at the meeting and discussed One-step development trend.
After the meeting, a reporter from Chengdu Commercial Daily-Red Star News visited the base.
/ Site visit /
Finished production of wall panels and stairs ensures safe and efficient construction of building quality
The reporter came to the production line of the Meihao Intelligent Manufacturing Prefabricated Building Industry Base in Jintang County, and large-scale equipment in yellow and blue is booming.
Some of the sites are mixing concrete, some are producing steel bars, and some are welding, etc., almost all of them are automated production.
Outside the factory, the reporter saw the finished prefabricated stairs, air-conditioning panels and bay window panels that had already been produced.
"Different from traditional construction sites, in the past, construction sites required many different types of work, such as steel work, geotechnical work, etc.", Wang Ping, Sichuan regional president of the Good House Intelligent Manufacturing Group, told reporters that prefabricated construction methods are The work was moved into the factory, and the production of building components was realized with standardized and intelligent equipment.
It is precisely because of standardized and intelligent production that “these components will be safer, more environmentally friendly, stable and comfortable than traditional on-site construction.” He said that traditional operations rely on industrial workers’ production skills and processes.
In the prefabricated construction method, only the finished components that have been produced in the factory are transported to the construction site for assembly, "you can imagine building blocks or putting together Lego."
This ensures the quality and safety of construction and the efficiency of construction.
/ Policy Support /
By 2020, the province’s prefabricated buildings will account for 30% of new buildings, and the assembly rate will reach over 30%
In fact, in recent years, a series of measures to promote the development of the prefabricated construction industry have been introduced from the central to the local level.
As early as September 2016, the State Council executive meeting proposed to vigorously develop prefabricated buildings and promote the adjustment and upgrading of industrial structure.
The "Guiding Opinions on Vigorously Developing Prefabricated Buildings" issued by the General Office of the State Council also puts forward the requirement to promote the innovation of construction methods in accordance with the requirements of application, economy, safety, greenness and beauty, and strive to use about 10 years to make prefabricated buildings. Buildings account for 30% of the newly built building area.
In March 2017, the Ministry of Housing and Urban-Rural Development issued the "13th Five-Year Plan of Action for Prefabricated Buildings", which put forward two general goals: one is that by 2020, the proportion of prefabricated buildings in the country to new buildings will reach 15% or more; the second is By 2020, cultivate more than 50 prefabricated building demonstration cities, more than 200 prefabricated building industrial bases, more than 500 prefabricated building demonstration projects, and construct more than 30 prefabricated building technology innovation bases.
Sichuan is a province that responds quickly.
In June 2017, the General Office of the Sichuan Provincial Government issued the "Implementation Opinions on Vigorously Developing Prefabricated Buildings", requiring that by 2020, Sichuan Province will basically form a market mechanism and development environment suitable for the development of prefabricated buildings. Housing in the province Vigorously promote prefabricated construction methods in various municipal projects.
The province's prefabricated buildings accounted for 30% of new buildings, and the assembly rate reached more than 30%. Among them, prefabricated buildings in the five pilot cities accounted for more than 35% of new buildings.
In 2025, buildings with an assembly rate of more than 50% will account for 40% of newly built buildings; bridges, railways, roads, integrated pipe corridors, tunnels, municipal engineering and other constructions will all adopt prefabricated assembly except for cast-in-place.
Chengdu is not only the country's first prefabricated building demonstration city, but also a pilot city in Sichuan Province.
Chengdu
The whole industrial chain of prefabricated buildings is beginning to take shape
Will move towards the 2.0 era of all-building assembly
The reporter learned at the meeting that since 2016, Chengdu's housing construction and municipal engineering projects have fully promoted prefabricated construction.
In terms of implementation scale, as of December 2019, Chengdu has a total of 64 million square meters of prefabricated buildings.
According to the goal set by Chengdu, by 2025, the prefabricated construction method will become the main construction method of construction projects in Chengdu.
Chengdu is also actively promoting high-quality demonstration of prefabricated buildings. There are about 2 million square meters of high-quality prefabricated building demonstration projects above A-level, including the built or under construction of the new capital Dafeng affordable housing, Tianke Plaza in Tianfu New District, and China State Construction Technology Office Building. Meter.
In terms of implementation standards, since 2019 in Chengdu, the construction and assembly rate of housing construction projects has been increased to no less than 30%; government-invested affordable housing, talent apartments, schools, hospitals, office buildings, and parking buildings have increased to no less At 50%.
In terms of industrial chain cultivation, the development of Chengdu's prefabricated construction industry is accelerating.
Chengdu has built (under construction) 43 prefabricated production bases, including 9 national demonstration bases and 8 provincial demonstration bases.
The entire industry chain is beginning to take shape.
How will Chengdu further promote the development of prefabricated buildings in the future?
The reporter learned at the meeting that Chengdu will vigorously promote industrial chain construction, system construction, quality construction and team building, promote standardized design, intelligent production and information management of prefabricated buildings, and promote the use of structural components in prefabricated buildings. The era of assembly-oriented 1.0 is advancing to the era of full-building assembly 2.0.
Chengdu Commercial Daily-Red Star News Reporter Wang Yao