Therefore, this industrialized and industrialized building has been widely used in Europe, America, Japan and other countries and regions.

Like Toledo, precast buildings precast some or all components in the factory, and then transported to the construction site for assembly.

It is the fundamental transformation of the mode of construction production from extensive production to intensive production.

01 overview of precast buildings 02 interpretation of precast policies 03 ， key points of precast design 04 analysis of precast costs 01 overview of precast buildings / Youde management sharing summary the emergence and development of precast buildings are inevitable, There are two main development trends that have led to the promotion of precast buildings across the country.

The construction industry and industrialization use the modern management mode through standardized architectural design and modular and industrialized component production, Realize the generalization of building components and the assembly and mechanization of on-site construction.

The definition of precast buildings: buildings assembled by precast parts on the construction site; Definition of assembly rate: the comprehensive proportion of precast components used in the main structure, enclosure wall, internal partition wall, decoration and equipment pipeline within the scope of building evaluation (above the outdoor floor)..

Assembly is not just “lapping”.

Not only the components themselves are continuously reduced through the industrial production mode, but also for cement, sand, stone The consumption of steel reduces the environmental pollution on the construction site.

Since the policy requirements for precast buildings are different across the country, the author mainly combines the national Analyze the relevant policies of Guangdong Province and interpret the assembled building policy — the national policy on precast buildings is mainly based on the evaluation standard for precast buildings (GB / t51129-2017).

Building a house is more and more like building a car.

Today, I would like to share with you the analysis outline of precast buildings from the perspective of Party A.

At the same time, many components can be reused, which also reduces the possibility of secondary waste pollution.

As long as the precast building components are transported to the construction site, we can imagine the pre prepared components such as beams, plates, columns and walls as Lego blocks, which only need to be put together at the construction site.

It is planned that precast buildings will account for more than 20% of new buildings by 2020 and more than 50% of new buildings by 2025; On February 22, 2016, the State Council issued the guidance on vigorously developing precast buildings, which requires that precast buildings such as precast concrete structure, steel structure and modern wood structure should be developed according to local conditions, and strive to make the proportion of precast buildings in the area of new buildings reach 30% in about 10 years; On March 5, 2016, the government work report proposed to vigorously develop steel structures and precast buildings and improve the standards and quality of construction projects; On July 5, 2016, the Ministry of housing and urban rural development issued the list of precast building science and technology demonstration projects planned by the Ministry of housing and urban rural development in 2016, and published the list of precast building science and technology demonstration projects of science and technology projects in 2016; On September 14, 2016, the State Council held an executive meeting of the State Council, which proposed to vigorously develop precast buildings and promote the adjustment and upgrading of industrial structure; On September 27, 2016, the State Council issued the guidance of the general office of the State Council on vigorously developing precast buildings, which defined the key areas of vigorously developing precast buildings and steel structures, the proportion of precast buildings in the future, the new building objectives and key cities.

This is the precast building.

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Second, the construction industry and industrialization trend.

With the development of modern industrial technology, building houses can be manufactured in batches and complete sets like machine production.

First, the trend of energy conservation and environmental protection.

02 interpretation of precast policy / sharing of Youde management in terms of precast buildings in China, the planning of precast buildings has been intensively introduced since 2015: the evaluation standard for industrialized buildings was issued at the end of 2015, which decided to comprehensively promote precast buildings in 2016 and made a breakthrough; On November 14, 2015, the Ministry of housing and urban rural development issued the outline for the modernization development of the construction industry.

After the precast components are transported to the construction site, the lapping and pouring of reinforced concrete will be carried out to ensure the safety of the assembly room.

The main components of precast buildings are manufactured in the component processing plant and transported to the project site for assembly.

Precast buildings respond well to the requirements of national energy conservation and environmental protection.