During the "Twelfth Five-Year Plan" period, the proportion of steel structure steel production in China hovered at 5%-6%, and the proportion of steel structure in large and wide residential buildings and small and medium-span bridges was less than 1%, far lower than the level of 20%-30% in developed countries. At the 2016 China Steel Structure Development Summit Forum held on the 26th, this is a group of numbers repeatedly mentioned by academicians and experts attending the meeting.
As a world steel country, accompanied by the world's first steel production ranking for more than ten consecutive years, is the more serious overcapacity of China's steel industry. "Taking the heavy steel group as an example, in the past three years, its actual production capacity has only accounted for half of the designed capacity." Zhou Xuhong, an academician of the Chinese Academy of Engineering, pointed out in the report.
It can not only focus on the field of green building, but also solve a large number of steel production capacity, the steel structure industry in the construction and steel industry "Rendu two veins" (two meridians involving longevity), but also face from engineering applications to market promotion of various shackles.
"We should strengthen the top-level design and strategic layout, support leading enterprises and industrial alliances, and drive related industries with steel structures." Yue Qingrui, president of the China Steel Structure Association, director of the National Steel Structure Engineering Technology Research Center and president of the China Metallurgical Construction Research Institute, believes that vigorously promoting the supply-side reform of the steel structure industry is a "good recipe" to resolve the overcapacity of the steel industry and the green transformation of the construction industry.
Driving the transition to green buildings, "the market alone will not work"
"It consumes 1.2 billion tons of cement, 600 million tons of limestone every year, about 5.5 billion tons of natural sand and gravel, and about 84 billion cubic meters of water." Zhou Xuhong pointed out that China's construction industry has always been a high resource consumption and labor-intensive industry, the production and construction process is relatively extensive, and the waste of resources is very serious, "and the harmful emissions of the steel structure construction process are only equivalent to about 65% of the concrete structure." ”
Different from the traditional construction mode, the steel structure transforms the mode of cast-in-place of workers into standardized design, factory production, and assembly construction, which not only has less environmental emissions, but also recycling, which is the best way to realize the industrialization of construction. In the view of Academician Shen Zuyan of Tongji University, the future construction industry should achieve the coordinated development of green, industrialization and informatization "trinity", and a large number of green environmental protection, recyclable, good seismic performance, light weight and high degree of assembly of steel structures are the inevitable trend of the development of the construction industry.
At present, China's steel structure industry has a complete industrial chain from research and development, design to manufacturing, installation, more than 3,000 steel structure manufacturing enterprises above the scale, however, the development of steel structure industry is not smooth sailing.
"The motivation of the owners is not high, and the construction and design units are often not very motivated." Academician Nie Jianguo, who often goes to the construction site to investigate, has a deep understanding of various obstacles in the industrialization of steel structures. "Markets alone won't work." In Yue Qingrui's view, in addition to some of the limitations of the shortage of technology and talents in the steel structure industry itself, the contradiction between the market and the regulatory level is particularly prominent, and the reason is that "the reallocation of resources will increase short-term additional costs, and developer-centered builders and participants in the entire industry chain are not willing to change the existing management habits and vested interests", so the overall optimization of the government level and the promotion of social forces are particularly necessary.
To resolve steel overcapacity, government and enterprise research need to work together to break through "intestinal obstruction"
"The annual production capacity of millions of tons is expected to be digested on the spot, and it can also create marginal benefits in design, construction, assembly, logistics and other links, which can be described as '''killing two birds with one stone'." Not long ago, some media commented on the "Chongqing Steel Structure Industry Co., Ltd." that Heavy Steel had just led the establishment. At present, de-capacity and de-inventory have become the top priority of steel industry reform, and the heavy steel aimed at the downstream steel structure industry is providing a wonderful example for the supply-side reform of steel enterprises.
Steel structure is a veritable "big household" of steel. According to statistics, during the "Twelfth Five-Year Plan" period, China's steel structure steel consumption will reach about 50 million tons by the end of the "Thirteenth Five-Year Plan", and the steel consumption of steel structure buildings is expected to increase to 70 million tons. The question is, how to open up the "intestinal obstruction" of this new "digestion" channel in the steel industry?
"The removal of bottlenecks in technology research and development, engineering application, industrialization promotion, market management and concepts needs to be paid attention to and overcome by governments, enterprises, experts and scholars." Yue Qingrui said.
At the forum, Shan Yinmu, chairman of the first domestic steel structure listed company, introduced, "On the basis of consolidating the traditional steel structure business, Hangxiao Steel Structure has created a new model of technology business franchise by way of technology implementation licensing through investment promotion, technology and brand output, precisely to allow more high-quality steel structure products to be shared with the whole society." ”
At the same time, the exploration of the way at the government level is underway in the west - Chongqing recently took the lead in issuing the "Guiding Opinions on Accelerating the Promotion and Application of Steel Structures and Industrial Innovation and Development" and the "Chongqing Construction Industry Modernization Demonstration Project Subsidy Fund Management Measures", trying to promote the comprehensive use of steel structures in government-invested or led public buildings and explore the promotion of steel structure housing.
Facing the "Thirteenth Five-Year Plan", "we must strengthen the supply-side structural reform of steel structures in accordance with the development concept of "innovation, coordination, green, openness and sharing", adhere to innovation-driven, focus on solving the bottleneck problem that restricts the development of steel structures, and promote the rapid development of steel structure buildings. More than 20 academicians and more than 60 entrepreneurs, experts and scholars who participated in the forum also reached a new consensus on the development of steel structure industry.