by The Ministry of housing and urban rural development, together with relevant departments, actively promotes the popularization and application of precast buildings in rural areas.
During the 13th Five Year Plan period, the Ministry of housing and urban rural development formulated a number of documents such as the 13th five year plan action plan for precast buildings and the measures for the management of precast construction industrial bases, which laid a certain foundation for promoting the application of precast buildings in rural areas.
Combined with the pilot construction of modern livable rural houses, reconstruction of dilapidated rural houses and seismic reconstruction of rural houses, the Department takes steel structure assembly as the main promotion type among a variety of precast building types such as precast reinforced concrete structure, light steel structure and wood structure, and guides Zhejiang, Western Shaanxi, Sichuan and Hebei to explore and develop steel structure precast rural houses.
According to preliminary statistics, about 100000 steel structure precast rural houses have been built in China.
The Ministry of housing and urban rural development investigates and understands the application of precast buildings in rural areas in Japan, the United States and other countries, deeply analyzes and summarizes the practice of promoting steel structure precast rural houses in Zhejiang, Hebei and other places, draws lessons from foreign mature experience, collects domestic and foreign rural house construction management systems, and further improves and promotes the implementation of precast rural house construction policies and measures.
Further consolidate the technical and industrial foundation, the Ministry of housing and urban rural development has formulated and issued the technical standard for precast steel structure residential buildings, which provides technical standard support from the aspects of integrated design, production of parts and components, construction, installation and quality acceptance, use, maintenance and management.
The Organization identified 30 cities and 195 enterprises as the first batch of precast building demonstration cities and industrial bases, forming about 50 steel structure precast rural housing production enterprises with an annual production capacity of about 5 million tons.
The Ministry of science and technology will take precast buildings as the key task of scientific research.
In 2016, it launched the implementation of the key special project of “green building and building industrialization” in the national key R & D plan, and allocated RMB 1.3 billion to focus on the basic theory, design, standards and specifications, testing and evaluation, component production, construction Industrialization and other aspects of technology research and development, design and deployment of the whole chain.
In 2019, the “ecological structure of precast houses in villages and towns” was implemented in the key special deployment of technological innovation in green livable villages and towns, which basically solved the common key technologies such as anti-corrosion, sound insulation, fire resistance and durability improvement of steel structure precast agricultural houses.
The construction cost needs to be further reduced.
The Ministry of housing and urban rural development said that the steel structure precast rural house is a new structure and building system, the social awareness still needs to be improved, and the construction cost needs to be further reduced.
Except for some farmers who are willing to accept new things, most farmers still hold a wait-and-see attitude limited by traditional ideas.
The Ministry of housing and urban rural development has guided local governments to explore various supporting policies, strengthened publicity and guidance, and promoted local governments to formulate supporting policies such as replacing subsidies with awards, credit support and quality insurance.
For example, Zhejiang Province will provide support according to the standard of provincial financial subsidy of 200 yuan per square meter and county-level financial subsidy of 100 yuan.
At the same time, it will provide loan amount support of no more than 300000 yuan to farmers who build houses.
Lin’an District of Hangzhou also guided enterprises to purchase housing insurance of 3000 yuan per household for housing farmers to relieve farmers’ worries.
Next, the Ministry of housing and urban rural development, together with relevant departments, will take precast buildings as an important content in the special planning and key tasks in the fields of Rural Revitalization and urban and rural residential environment construction during the 14th five year plan.
Focus on steel structure precast rural houses, drive the development of precast buildings, guide all localities to actively promote precast rural houses according to local conditions, accelerate the transformation of traditional rural house construction methods and improve the quality of rural houses.
Product introduction of Hubei Mingsen light steel villa earthquake resistance: it can resist a rare earthquake of magnitude 9 and is suitable for areas with seismic strength of magnitude 8 or above.
Wind resistance: it can resist a hurricane of 70m / s and the wind resistance grade is above grade 12.
Durability: the service life of the main structure can reach more than 90 years.
Fire resistance: according to different designs, the fire resistance time can reach 1 ~ 4 hours.
Sound insulation: the sound insulation of the external wall can reach 65dB, The internal wall insulation volume can reach 45dB.
Thermal insulation: the thermal resistance of 200mm thick composite wall can reach 3.2m2k/w, which is 11 times that of brick wall with equal thickness.
Environmental protection: steel structure materials can be 100% recycled, and most of other supporting materials can be recycled.
Energy saving: new thermal insulation and thermal insulation materials are adopted to provide energy for heating and refrigeration, 65% more energy-efficient than traditional buildings: the utilization area of light steel integrated houses increases by 5% ~ 13% compared with traditional buildings.
Construction period: the standardized assembly operation of light steel structure houses is simple and fast, saving two-thirds of the construction period compared with brick concrete structure.
The main business of the company: 1 Design and construction of light steel structure villa 2 Design and construction of wooden structure villa 3 Design and construction of heavy steel structure villa 4 Garden, landscape design and construction 5 Indoor and outdoor decoration and decoration, integrated whole house decoration and customization 6 Sales of new environmental protection building decoration materials.
