National leadership: 30% new house will be built in 10 years
According to incomplete statistics, as of 2015, there have been more than 30 provinces and cities in China have issued guidance and related measures on the development of prefabricated buildings and construction industrialization. The "10 years and 30 percent" target for further strengthening the management of urban planning and construction in the central committee of the communist party of China (CPC central committee) brings policy guidance to the development of more prefabricated buildings. However, the construction industry will face shuffling and refactorings with the rise of prefabricated buildings.
Construction jobs: masons will face unemployment and assembler’s spring is coming
Yingchuang Building Technique (Shanghai) Co.,Ltd president Ma Yihe once said that they can build a 6-story building with 42 days by 8 workers using 3D printing architecture technology. The efficiency is amazing. It is impossible to build a 6-story building within 42 days by the way of traditional way.
Experts point out that the construction industry has the characteristics of "high growth rate, large-scale, multi-opportunity, low profit, old mode and constant profit". In the past, there has been a flood of businesses and people into the construction industry. However, with the development of the assembly building in the future, there will be fierce differentiation in the construction industry, and there will inevitably be a large number of enterprises and practitioners quitting.
According to incomplete statistics, China has no more than 50 million construction workers, and the team is very large. Over the years, the traditional "Numbers" building production organization way, because of its simple relies heavily on to manual labor, repeated labor, low content of science and technology, make the construction industry generally low work efficiency, the raw material consumption, environmental pollution problems. This kind of site construction, site masonry, and people's habitual ways of walking with the project have been unable to adapt to the development requirements of "energy saving carbon reduction" and "green environmental protection" in today's world. And the "construction industry is going to factory" assembly building mode is the effective way to make up for the shortage of high skilled labor in construction. The factory process, combined with prefabrication and on-site assembly, not only shortens the construction cycle, but also reduces the reliance on manual labor and labor skills. This means that, with the development of the assembly building, the construction industry will no longer have the "man-sea tactics" in the future.
Construction industry has a lot of jobs, in terms of building, there are electrician, welder, carpenter, bricklayer, water steel worker, scaffolder, lath, putty, curtain wall engineering, plumber, concrete worker jobs, etc. According to the analysis of the industry, after the assembly building, some parts of the wall, stair, and balcony have been made in the factory. The site operation of the workers is only the positioning, location, installation and so on. Therefore, the demand for carpentry, clay workers and concrete workers will be greatly reduced. At the same time, after the construction of the prefabricated construction method, large machinery such as crane is used to replace the original outer wall scaffold, so the scaffolding will not be used. However, industry insiders believe that crane drivers, assembly workers, welders and some highly skilled jobs may become more sought-after.
To be sure, with the introduction of 3D printed assembly buildings, the workforce will be more and more streamlined. A large number of the 50 million construction workers will have to quit. How to solve the surplus labor of mechanized production instead of manual work will be a big task in the industry.
Market pattern: Small and medium-sized enterprises face challenges and steel construction enterprises’ spring is coming
How does it affect the construction enterprises to develop prefabricated buildings?
It should say that construction companies were generally on the sidelines in early years. Only several private enterprises support prefabricated buildings, such as Vanke, Yuanda Zhugong, Hangxiao steel structure. As the government strongly called for, enterprise attitude towards the prefabricated construction over the years there has been a marked shift, some large state-owned enterprises have to keep up with the pace and enhance investment in the industrialization, such as Beijing Zhuzong, China construction, Zhongyan Building and Shanghai Construction. Among them, China Construction Stock Co.,Ltd found China Construction Technology Group to develop new construction industrialization and energy saving.
At present, the strong leading state-owned enterprises have acted as the main force for the implementation of the prefabricated building, while the large number of small and medium-sized construction enterprises are still worried. In China, because of lack of policy support, innovative ability and technology, small and medium sized enterprises give up to develop prefabricated building for its high cost. A small construction company boss said gloomily: " At present, only a small number of state-owned enterprises and those private enterprises that have reasonable industry structure and good reputation can go into construction industry and prefabricated buildings.”
Are there really no opportunities for small and medium-sized construction companies? Jiang Difei, president of the architectural design institute of Hunan province, thinks that small and medium-sized enterprises all have their own characteristics. Some are good at construction management; Some are good at processing and making; Even some are good at window, building materials and construction machinery. Enterprises should develop according to their own advantages, rather than invest in building large factories and devote themselves to full industrial chain production. The enterprise should develop itself based on its own technical characteristic and capital strength.
It is the times trends to develop prefabricated building and steel structure building. “The house we build would be construction rubbish in future. But steel structure building is different, which can be recycled and has short construction period, lower energy consumption and good earthquake resistance, more in line with the requirements of “green building” under the new circumstances. Therefore, it is good to develop prefabricated buildings for steel structure enterprise.
It is an opportunities for steel enterprise. According to the staff, they build 20 - to 30-story buildings with a steel capacity of 60 kg to 70kg/m2; There are no very accurate statistics on the above 30-storey high-rise buildings. Taking “small city” as example, Its steel consumption is about 26,000 tons, an average of 153 kg/m2. These steel are made of steel, which domestic steel enterprises can produce. Therefore, Wang Tiehong, president of the China association of construction industry, encourages more powerful steel enterprises to enter the industrial and prefabricated construction area and promote the better and faster development of factory buildings. He believes that autonomous development or strong combination is an option that steelmakers can take. It is a major strategic issue to think deeply about whether to enter the factory assembly building in time for steel enterprise."
Tomorrow's weather: the demonstration base is everywhere, and new things emerge one after another.
Demonstration bases develops well and new things constantly appears
Assembly buildings will bring change to the industry, as well as new atmosphere. Among them, the building industry modernization demonstration base characterized by the prefabricated building is a unique scenery line.
In April 2015, the financial department of Jiangsu province and Jiangsu province housing and urban and rural construction printed and distributed to the Jiangsu provincial energy conservation and emissions reduction (building energy efficiency and building industry modernization) special guidance funds management method points out: We should make rational layout of integrated application, design research and development, production of parts and other construction industry modernization demonstration base. In April 2015, the ministry of housing and urban-rural development of Anhui issued a notice concerning the key points of energy conservation and scientific work in Anhui province in 2015: We will launch a pilot demonstration project for the modernization of the construction industry in the light of government investment projects such as affordable housing and demonstration projects of green buildings. In May 2015, the general office of the Fujian provincial government issued guidance on the promotion of the modernization of construction industry. By 2017, the province will cultivate and create 3 ~ 5 national construction industry modernization production and service base......
As of 2015, the country has established 56 national housing industrialization bases and 11 pilot cities for residential industrialization. The industry as a whole shows a flourishing trend.
In addition, new things like zero-carbon buildings and 3D printed buildings will continue to emerge.
In December 2012, the zero-carbon living system ark, which was created by the zero-carbon center after the 2010 Shanghai world expo 2010, was released. According to Chenshuo, CEO of zero-carbon center, zero-carbon pavilion 2.0 has the following characteristics: Through top-grade high-strength steel and design, a small villa with an area of 80 square meters can be built in a day by two workers; Moreover, it is widely used, the whole terrain is applicable, and the zero infrastructure investment is suitable for projects that cannot be built in traditional buildings such as swamp, desert, mountain and island. Such a zero-carbon building is certainly an assembly building, but more personal.
In April 2014, 10 3D printed buildings appeared in Shanghai Zhangjiang high-tech Qingpu park. The 10 buildings has attracted wide attention in the industry. So is the 3D printing house a "shaping" or "assemble"? According to Ma Yihe, president of Shanghai Yingchuang Decoration Group Co.,Ltd, that the house was built in a 3D printer in a workshop, and then assembled in a building like a building block.Therefore, the 3D printing architecture is actually an assembly building, but the material is more special.
New technologies, such as zero-carbon construction, 3D printing architecture and robots, will undoubtedly contribute to the development of assembly buildings. The prefabricated building is worth to wait in future.
