The industrialization of construction is imperative and the space is vast. Building industrialization refers to the design, construction and management of buildings through standardized design, industrial production, prefabricated construction and information management. At present, the main technical systems include prefabricated PC assembly, prefabricated steel structure, 3D printing and decorative prefabricated assembly. Building industrialization has many advantages such as short construction period, space saving, less worker dependence, green environmental protection, etc., compared with Japan and European and American countries, China's building industrialization degree is still very low, the future development space is very broad.
Multi-factor promotion of building industrialization: The state has issued a series of policies to promote the industrialization of buildings, especially in the current national high emphasis on energy conservation and environmental protection, green economy, as well as industry 4.0 and intelligent manufacturing environment, the future construction industrialization policy support is expected to continue to strengthen. In addition, China's demographic dividend is gradually disappearing, the rise of labor costs and the progress of prefabricated installation technology are accelerating the process of construction industrialization. In addition, the success of pilot projects and market development of large enterprises have strengthened social and user confidence. At present, 3 pilot cities for housing industrialization have been set up across the country, and nearly 50 residential industrialization bases Shenyang, Shanghai and Beijing have issued management regulations and incentive policies in terms of planning and design, land transfer, financial subsidies and tax incentives. The industrialization of construction is accelerating.
The market promotion of steel structure housing and green integrated building is accelerating. Prefabricated steel structure is prefabricated steel beams, steel columns and light wall materials in the factory and assembled on site, which has the advantages of light weight, large use area, high material recovery rate, good crack resistance and seismic resistance, etc., and is an important path for building industrialization. At present, in the field of steel structure housing, the steel pipe bundle combination housing system developed by Hangxiao Steel Structure has been applied to projects such as Wanxian Daducheng, and promoted through technical authorization and cooperative factory construction, 10 authorization agreements have been signed, and a total of 350 million yuan of technical usage fees have been collected in the early stage, and the profit margin of the asset-light model is extremely high, Honglu Steel Structure launched the "Little Bee" housing system, light steel villas are based on the rural market, low cost, short construction period, and recently won the bid for Dayu Homestead public rental housing project to show its strength. In the field of industrial/commercial green buildings, the technical regulations for green integrated buildings of Seiko Steel GBS were filed and released by the Zhejiang Department of Housing and Construction last year, and the early bid for the Meishan River project marked the beginning of comprehensive promotion. In the future, affordable housing and public buildings such as schools and hospitals are expected to adopt a large proportion of steel structure green integrated systems.
Technologies such as prefabricated PC, architectural 3D printing and decorative prefabricated assembly have blossomed at multiple points and have their own potential. Prefabricated PC is prefabricated concrete structure, including prefabricated frame/shear wall/mixed three types of structure, in 2014, the new construction area of this type exceeded 20 million square meters, accounting for 0.38% of the new construction area in the country, and there is a lot of room for improvement in the future. Vanke and Yuanda are leaders in the field of prefabricated PCs. 3D printing architecture is an emerging technology in recent years, based on digital models, through layer-by-layer printing to construct buildings, Yingchuang Technology's own technology in which Yaxia shares are leading the world and its business is rapidly promoted. The degree of prefabricated assembly of decoration is constantly improving, which is also an important way to solve the problem of excessive dependence on labor and difficult to ensure construction quality in the future.