Prefabricated buildings move towards quality, efficiency and sustainable development
Industry development faces challenges
Cities with a large amount of prefabricated components are mainly concentrated in Beijing, Shanghai, Shenzhen and other places. Many projects still win bids at low prices, and the market competition is fierce. At present, both Beijing and Shanghai have entered the platform stage of the development of prefabricated buildings. The prefabricated component market is limited in increments, and the production capacity of prefabricated enterprises is seriously insufficient. In addition, the prices of raw materials such as steel bars, sand, and cement have risen sharply this year, and the sales prices of products have not been significantly increased. Growth, prefab enterprises are difficult to operate, many new small and medium-sized enterprises are facing bankruptcy or conversion, and the phenomenon of blind investment in new prefab factories has basically ended.
At the same time, the promotion of prefabricated buildings in major cities such as South China, Southwest China, and Northwest China has continued to increase, and some prefabricated factories are still invested in construction. The prefabricated concrete components in these areas are mainly concentrated in the field of prefabricated houses. In most areas, horizontal components such as laminated panels and stairs are the main components. Such products have little technical difficulty in production and low barriers to entry. Some new factories are blindly competing at low prices to seize the market. This phenomenon is very common, coupled with the low degree of product standardization, resulting in low production efficiency and large cost amortization, which seriously affects the future healthy development of the prefabrication industry.
In addition, the design quality affects the production and construction efficiency of prefabricated components, the quality and efficiency of production and construction, supply guarantee and inventory coordination, and the product quality and technical services of prefabricated enterprises and high-quality construction requirements are serious Problems such as deviation, lack of professional technical talents and professional management thinking are all huge challenges for the sustainable development of the prefabricated industry and prefabricated buildings.
Entering a step-by-step layered promotion pattern
“Any industry has a process of continuous maturity, and the same is true for the prefab industry.” In the face of current problems, Jiang Qinjian pointed out that although policies across the country continue to strengthen the development of prefabricated buildings, the prefabricated buildings are used as the carrier. , the coordinated promotion of intelligent construction and the industrialization of new buildings, and the transformation and upgrading and high-quality development of the construction industry will become the main direction.
Both Beijing and Shanghai have played an exemplary and leading role in terms of implementation scale and technical quality management level. The policy requires that on the basis of maintaining the current market size, work mainly focuses on the goals of high-quality construction and high-quality buildings, supplements and improves the appropriate construction technology system and product system, strengthens the quality management and personnel training of prefabricated buildings, and consolidates prefabricated buildings. The whole process management basis of the industrialized implementation body of architectural design, production, construction and installation.
In the second- and third-tier cities, the development policy of prefabricated buildings is still being improved and promoted. The promotion and application of the fourth- and fifth-tier cities and the vast rural areas are still in the pilot exploration stage, mainly focusing on the application of some standardized components. The road to industrial construction.
Overall, the development of prefabricated buildings in my country has gradually expanded from first-tier cities to second- and third-tier cities, showing a development pattern of stepped and layered advancement. Promoting building industrialization and the development of prefabricated buildings according to local conditions is an important means for future building transformation and upgrading.
Relying on technological innovation to develop potential market
“The future development trend of the precast concrete industry, one is the development and improvement of the general technical system and standardized components of prefabricated buildings, and the other is the development and engineering application of precast concrete high-performance parts.” Talking about the next development, Jiang Qinjian proposed that prefabricated construction The general technical system of construction mainly refers to two categories of prefabricated frame structure building system and prefabricated shear wall structure building system. All parts of the country should develop standardized components and parts systems around structural systems, enclosure systems, equipment systems, and decoration systems. Form an economical and applicable standardized product series. As an important way to combine intelligent construction and new industrialization, to continue to promote the high-quality development of prefabricated buildings, we should continue to promote technical standards, industry management and the construction of the entire industrial chain of prefabricated buildings. PC manufacturing enterprises should strengthen technological innovation and increase new technologies. , New technology, new material research and development. Among them, the development of high-performance parts and application technology research are the core competitiveness of prefabricated enterprises, and the gradual development of prefabricated concrete components into high-performance parts with functional integration and performance improvement is the objective requirement of prefabricated buildings.
In this regard, experts suggest: First, rely on technological and management innovation to continue to develop precast concrete application fields and potential markets. The second is to practice the new concept of building industrialization of energy conservation, emission reduction, quality improvement and efficiency improvement, and provide high-quality products and technical services for the high-quality development of prefabricated buildings. Driven by the “dual carbon” goal, all component manufacturers should comprehensively improve their awareness of environmental protection, actively do a good job in assessing environmental risks and project risks, implement environmental protection measures, and solve the relationship between production and construction and environmental protection. Research on products and technologies related to resource recycling, and on the other hand, strengthen the transformation and upgrading of environmental protection measures to ensure the long-term healthy development of the factory and the ability to perform projects. The third is to provide internal driving force for the sustainable development of Steel Prefab House through lean production, quality improvement and efficiency improvement. From the perspective of lean production and quality and efficiency improvement, only by improving the degree of standardization and simplifying the production method can it be beneficial to realize mechanization and automation, truly improve production efficiency and quality, realize new industrialization, and provide internal power for the sustainable development of enterprises.