Foreign low rise light steel housing system has been relatively mature.

During the 14th Five Year Plan period, precast buildings will continue to grow rapidly.

In terms of steel structure housing, the level of China is far from that of developed countries.

According to the statistics of the Ministry of housing and urban rural development, in 2020, the total number of newly started precast buildings in China was 630 million square meters, with a year-on-year increase of about 50%, accounting for about 20.5% of the new construction area.

The representative enterprise of this model is Honglu steel structure; The second is the contractor mode in which steel structure enterprises are mainly responsible for manufacturing, construction and installation.

Steel structure enterprises are responsible for the whole process of steel structure design, manufacturing and installation.

At the same time, the scale effect of precast steel structure enterprises is expected to further narrow the price difference between steel structure and concrete structure.

At present, the market concentration of China’s steel structure industry is low, and the Cr5 of the steel structure industry is only about 5%, while the market share of the top three steel structure enterprises in the United States is more than 50%.

There are three main business models of steel structure enterprises.

With the active promotion of precast construction projects in various regions, the scale of new precast buildings in China is growing.

The advantage of cast concrete structure over steel structure lies in cost.

The United States, Japan, Australia and other countries have already widely used light steel structure in low rise housing.

Magnetic Box

From the perspective of enterprise types, China’s steel structure enterprises are roughly divided into three categories.

Seiko steel structure, Southeast grid and other large domestic steel structure enterprises are mainly in the mode of subcontracting and general contracting.

In 2016, the fluctuation of steel price superimposed on the low demand of downstream construction industry, and some small steel structure processing enterprises closed down, resulting in a certain increase in the concentration of steel structure industry.

1、 Affordable housing warming II.

Thanks to policy support, precast buildings have ushered in development opportunities.

About 2 / 3 of precast buildings in China are precast concrete structure, precast steel structure accounts for about 30%, and wood structure accounts for less.

At present, all localities have also issued support policies for the development of precast buildings.

In fact, the policy of precast buildings has long been supported by the policy.

First, the general contracting of construction projects is the core business, and the steel structure is mainly large central enterprises used in the system, such as China Construction Science and Engineering (China Construction steel structure), Shanghai Baoye, etc; Second, private enterprises mainly engaged in steel structure product manufacturing and steel structure construction project contracting, such as Honglu steel structure, Seiko steel structure, etc; Third, small and medium-sized steel structure product manufacturing enterprises.

In 2019, the number of enterprises with an annual output of 50000-100000 tons of steel structure will drop significantly again.

The daily financial report noted that the main stimulus news is that the official website of the Ministry of housing and Urban Rural Development released the “14th five year plan” for the development of construction industry.

In Australia, the market share of light steel structure housing is 15%, and row steel structure housing has also been used in some parts of Europe.

The labor cost of cast steel structure is 60% – 70% of that of concrete structure.

The third is the general contracting mode of steel structure construction.

The rising labor cost of construction workers will help to increase the share of steel structure in cast buildings.

For steel structure enterprises with manufacturing mode, cost control and scale advantage are the core competitiveness, which is worthy of attention.

The cost of precast concrete structure is relatively low.

With the improvement of steel structure technical standards and industry norms, the withdrawal of small and medium-sized enterprises from the market will be further accelerated, and the pattern of constant strength of the strong in the steel structure industry can be expected.

More than 90% of the steel structure buildings built in Japan are low-rise buildings with 5 floors or less.

In October 2021, the State Council issued the action plan for carbon peak before 2030, which proposed to “accelerate the industrialization of new buildings, vigorously develop precast buildings and promote steel structure housing”; In the same period, the “opinions on promoting green development of urban and rural construction” of the State Council once again stressed that “focus on promoting the construction of steel structure precast housing”.

It is expected that the proportion of precast buildings in the new construction area is expected to reach more than 30% by 2025.

Since this year, the infrastructure sector has become a hot spot in the market, and the precast building is the most eye-catching, which has attracted the attention of the main funds.

By 2025, precast buildings will account for more than 30% of new buildings.

There are three main structural forms of focus steel structure precast buildings: precast concrete structure (PC), precast steel structure (PS) and precast wood structure, and a small number of other precast buildings adopt mixed structure.

Statement:.

One is the manufacturing model in which customers provide drawings and steel structure enterprises mainly manufacture steel structure components.

There is relatively less demand for construction workers.

However, due to its light weight, high strength and strong plasticity, steel structure is easy to realize large continuous space structure and design diversification, which makes steel structure have more significant competitive advantages in the field of venue construction such as airport.