In recent years, the government has issued a series of policies to promote prefabricated buildings. It is proposed that in about 10 years, prefabricated buildings account for more than 30% of the newly-built building area. At the same time, it is clear that concrete, steel structure and wood structure are the three systems of prefabricated building.In order to implement the spirit of the policy documents, various regions have also issued specific implementation measures and opinions, which set off an upsurge of promoting prefabricated buildings in the country.

Under the guidance of the policy, most enterprises in the construction steel structure industry actively respond to the call of the state, increase investment in technology research and development, and upgrade their products to meet the needs of the market.While the vast majority of enterprises are down-to-earth and pragmatic, there are also some phenomena of promoting prefabricated buildings in the form of great leap forward, which should be attached great importance to by government departments and industries.

The author believes that the promotion of prefabricated steel structure building should adhere to the correct direction. At present, it needs a piece of “ibuprofen” with cooling and antipyretic functions, a bottle of “tranquilizer” with sedative effect, and a bag of “vitamins” to balance the comprehensive nutrition and function of the body.

Use “ibuprofen” to cool and relieve fever and avoid repeated investment in vicious competition 

As the main structure of the building, steel structure has the characteristics of typical prefabricated building, and the technology is becoming more and more mature, which has been widely concerned by the society.In the initial stage of promotion, some supporting policies issued by the government have played a positive role in the development of the industry.Vigorously developing steel structure building does not mean that all buildings are suitable for steel structure.Steel structure has a natural assembly process, and the unique properties of steel are very suitable for large space, long-span buildings, bridges and super high-rise buildings, public buildings and low-rise light steel integrated houses.The author believes that the government should pay attention to the direction of policy guidance, and these fields are the markets that the steel structure industry should focus on.

For the regions, fields and engineering types suitable for the promotion of steel structure buildings, the local government should organize the industry technical force, rely on the professional technical team to put forward policy advice, and rely on local resources, location and market advantages to put forward development goals and safeguard measures.The government and industry should guide enterprises to pay attention to structural optimization and cost reduction, formulate special policies for public buildings and residences in earthquake prone areas, attach importance to scientific and technological innovation, and break through the technical shortcomings, so as to truly reflect the advantages of steel structure buildings, such as light, fast, good, saving, high degree of assembly and material recycling.

A perfect steel structure building is the crystallization of the cooperation and wisdom of the research results of different professions, different research fields and various aspects; depending on the close cooperation of architects, structural engineers and builders, the professional and technical personnel of relevant industries should get rid of the shackles of fame and wealth, break the technical barriers, and promote the sharing of resources and interests.In order to popularize prefabricated steel structure buildings, we should rely on the solid steel structure manufacturing enterprises, promote the application and transformation of technical achievements, and carry out scheme optimization, material optimization, system demonstration, etc. around the whole construction industry chain with a rigorous, serious and realistic scientific attitude, so as to avoid repeated investment and vicious competition.

The right way to promote steel structure housing is technological innovation. Enterprises can not only rely on policies and subsidies to promote steel structure, but also can not simply meet the requirements of the government and blindly invest.In the industry, there have been some enterprises that have been operating well, but they have fallen into business difficulties because of blind investment. Such cases can not be enumerated, which should cause the majority of employees in the industry to think deeply.

Calm down with “diazepam” and work hard on improving process and quality 

Facing the market agitation and lively public opinion, entrepreneurs and experts in the steel structure industry should be calm and calm, pay attention to how to effectively improve the building structure, enclosure materials, assembly technology and other links, in-depth research, rigorous verification, increase the promotion of new materials, new technology, new technology, improve the quality and function of buildings.The simplest is to think in a transposition. As a consumer of steel structure building, we should start from what kind of house to build for ourselves, constantly improve and perfect the product system, ensure the engineering quality and reduce the cost.If the practitioners in the steel structure industry are not satisfied with their own houses, how can they be recognized and praised by the society?

The fabricated steel structure building is a kind of integrated building product which has perfect function, safe and comfortable, beautiful and practical and suitable for living.It should be noted that not every steel structure enterprise is omnipotent, but can become an all-round enterprise that knows everything, can produce everything and can do everything in an instant.If architecture is compared to music, then prefabricated architecture is a “Concerto”, with protagonists and supporting actors.The leading role should be the leading enterprise of steel structure with strong R & D ability, strong technical strength, relatively concentrated talents, general contracting management and practical experience in the industry; the supporting role is the production enterprise of various building materials components, accessories, doors and windows, fasteners and connectors around steel structure buildings.Let professional people do professional things, realize the best combination of components and parts, so as to reduce the cost and improve the quality of the project.

The formation of new production capacity and new kinetic energy can not simply rely on large investment and output. Eager for quick results and instant benefits and quick success can only achieve half the result with twice the effort.In order to promote steel structure construction, it is necessary to adapt to the local market demand and investment scale, calculate the economic cost account, activate the existing production resources, and pay attention to transformation and upgrading.Make full use of local resources and industrial supporting facilities to calculate the investment account for consumers.For the vast majority of ordinary people, the biggest investment in their life is to buy a house, and they may live in a house all their life.Different from other commodities, buildings can be repaired at any time if they are broken, and can be bought again when they are scrapped. It is more difficult to repair prefabricated buildings in the future, and it may be more difficult to replace plates of the same material, batch and specification in a few years.For steel structure enterprises, building workshops, purchasing equipment and having production conditions are only the first step. The purpose is to launch products with high cost performance, reliable quality, beautiful and comfortable.

Don’t forget the promotion of assembly architecture.In people’s understanding, the architectural design, factory production and on-site construction are closely linked and seamless. The production of components and fittings, complex manufacturing and reliability testing are all completed in the factory. Only skilled industrial workers are required to assemble with the help of lifting equipment on site, and the building can be equipped with the conditions for carrying bags.Modern information technology, BIM Technology and engineering software can achieve millimeter level design, splitting and simulation production of building components and fittings, which is a revolutionary leap in the construction industry.Enterprises should make efforts in manufacturing and assembly process, material performance and durability, and improve the standardization and refinement manufacturing level of components and parts. The more simple the process, the more reliable the quality, and eliminate the muddling, the more valuable it will be popularized.

Supplement nutrition with “vitamins” and strengthen construction based on market demand 

Improve the comprehensive performance and quality of steel structure buildings.Steel structure building is not equal to steel structure residence. 70% of the fabricated building development goal proposed by the state will be residence. A big market for steel structure building promotion is “steel structure residence”.For people’s health, not partial food, balanced nutrition, can have a good skeleton, strong body, beautiful appearance.For the steel structure residence, it is not only necessary to have a good earthquake resistant and solid structure, but also a building wallboard system to meet the residential function, beautiful and practical decoration, reasonable cost, perfect function, reflecting the advantages of prefabricated building, and melting into the residential demand of the people. This requires the design, research and development units and production enterprises of steel structure residence to work together to establish a foothold in the city Field demand, complement product development parts, plate short board.

To supplement “vitamin” to steel structure residence is to make up the short board and strengthen the building.We can not only strengthen the structure, weak enclosure, reduce the function, nor can a system eat all over the world.The reliability, safety and stability of steel structure vertical structure, mature connection technology and lightweight composite wall material match, become the most innovative and valuable building system in prefabricated building.In recent years, there are many achievements in the application of steel structures in large-span, super high-rise public buildings, and the construction technology has been in the world’s leading level.It is a pity that the research on steel structure residence is not deep in our country. We try to solve the problem of steel structure residence according to the material and technology of concrete building, ignore the research and development of composite floor and wallboard of steel structure, lack of integrated solution of system, and disjointed design with component processing and site construction, which will affect the promotion of steel structure residence.

There are many steel structure enterprises and experts lament that under the pressure of de stocking, it is not the best time to promote steel structure residence.The author does not agree with this view, China’s housing construction market will still maintain a strong consumer demand in the next five years.Not to mention that in the next three years, the country will continue to complete the task of transforming 15 million shantytowns, but also in the reconstruction of dilapidated houses in rural areas, the construction of characteristic towns, and the reconstruction and reinforcement of old urban residential areas, which is also a huge market.The promotion of steel structure can reduce construction pollution, speed up the progress and reduce disturbance to residents. If the technical system of steel structure residence is mature and cost-effective, the government and society will be more interested. Because the steel structure has good seismic performance, we can vigorously develop new green energy-saving wall panel, and good products will have a good market.

All things are in the same way.No matter it’s people or buildings, if they don’t pay attention to details and ignore minor defects, small problems will develop into big ones.Lack of these “three kinds of medicine”, a person will lack of resistance, immunity, physical fitness will decline, need to take injections, affecting the quality of life.Similarly, if a steel structure residence does not pay attention to the system, optimization of structure and enclosure floor and wall panel system, and does not pay attention to the improvement of the functional quality of the whole life cycle of the project, it will crack and leak soon. Although the structural safety is not affected, the small defects of the house will let the consumers not tire of it, which will affect the quality of life and happiness index.What’s more, if the system and components are not mature and the houses are not durable, they have to be demolished and rebuilt after a few years. The waste and construction waste will be even greater losses.