Market Analysis Of The Steel Structure Industry

Content

• Overview of the steel structure industry

• Steel structure industry market segment analysis

• Steel structure industry development trend

Part 1 Overview of the steel structure industry

1. Definition & classification of the steel structure

Steel structure is mainly used steel plate, section steels, steel pipe, cable and other steels and welded by bolts or rivets forming the building structure.

Compared with other structural forms such as reinforced concrete structure, masonry structure, steel structure not only has many advantages such as high strength, light weight, plastic toughness and good seismic performance, but also is suitable for mechanized processing, high degree of industrialization and short construction period. Due to the low use of cement sand and other materials, the dust, construction waste and noise are greatly reduced, in line with the requirements of sustainable development.

As one of the most important forms of building structure, steel structure is widely used in housing construction, machinery, energy, municipal facilities and other industries.

Steel structure classification, according to the application field can be divided into equipment steel structure (for sealed pressure vessel, tower, marine, water conservancy steel structure, coal power steel structure, etc.), heavy steel structure (for high-rise steel building, heavy workshop, etc.), light steel structure (light workshop, warehouse structure, modular house, etc.), bridge steel structure, space steel structure.

2. Analysis of the development history of the steel structure industry
The development of steel structure in China can be roughly divided into four stages.

After the founding of new China, with the development of economic construction, steel structure has played an important role.

During the first five-year plan, a large number of steel structure factories and bridges were built in China. However, due to the restriction of steel output, for a long time afterwards, steel structure was restricted to be used in major engineering projects that cannot be replaced by other structures, and the development of steel structure in China was limited to a certain extent.

Since the reform and opening up in 1978, China's economy has developed rapidly, and the steel output has increased year by year.

The 2008 Olympic Games and the 2010 World Expo were held in China, which provided an unprecedented historical opportunity for the development of steel structure in China.

Part 2 Steel structure industry market segment analysis
1. Equipment and steel structure market
Equipment steel structure is an important branch of heavy equipment manufacturing industry. The development speed of equipment steel structure is closely related to the industrial development speed.

2. Heavy steel structure building market
By the end of 2018, China had 117 super high-rise buildings with more than 250m under construction. The super high-rise buildings under construction are mainly concentrated in 250~300m and 300~400m, with 48 buildings (41%) and 54 buildings (46%) respectively. There are 5 super high-rise buildings under construction above 500m. The materials used in super high-rise buildings are mainly steel-concrete mixed structures, with a total of 229 buildings (75%), and 17 pure steel structures above 250m, accounting for about 6%.
Foreign buildings of more than 200 m, steel structure accounts for more than 85%, and the United States and Japan are the countries with the largest use of steel structure in high-rise buildings.

3. Building of a light steel structure market
Building light steel structure is mainly used in light industrial production workshop, steel structure housing, etc. The development speed of industrial plant building is closely related to the scale of industrial development. China's national economy development is sustained and stable growth of the good situation of certainty, the application of steel structure in the field of industrial plant will maintain a continuous growth trend.
In terms of steel structure housing, foreign low-rise light steel housing system has been relatively mature, the United States, Japan, Australia and other countries have widely used in the low-rise residential light steel structure, Japan built a large number of steel structure in more than 90% for 5 floors and below low-rise building, light steel structure housing market share of 15% in Australia, some parts of Europe also adopted type steel structure housing.
Steel structure in China in high-rise, large span space structure, industrial plant has been widely used, steel structure design theory, standard, construction technology is also very mature, with the industrialization of steel structure housing industrialization development, prefabricated steel structure building will enter the stage of comprehensive acceleration, prefabricated steel structure housing will have a wider application and development prospect.

4. Bridge steel structure market
The road traffic market has a large demand for steel structure in the fields of railways, highways, urban traffic and Bridges. With the acceleration of China's urbanization process, a new round of infrastructure construction has begun in major cities, among which requires a large number of overpasses, viaducts, water bridges, pedestrian overpasses and rail transit.
5. Space and steel structure market
Space steel structure is mainly used in stadium, exhibition hall, conference hall, activity center, airport terminal, station and other large public buildings. Due to its light weight, high strength and strong plasticity, steel is easy to achieve a large continuous space structure and design diversification, making steel structure has a more significant competitive advantage in the field of venues such as airports.

In terms of public buildings such as hospitals and schools, in September 2020, the Ministry of Housing and Urban-Rural Development and other nine departments issued opinions to accelerate the industrialization of new buildings, which proposed to "encourage hospitals and schools and other public buildings to give priority to the use of steel structures, and actively promote the construction of steel structure residential buildings and rural houses".

Part 3 Steel structure industry development trend analysis
1. The market competition is more fierce, the strong constant strong pattern can be expected.
At present, the market concentration of China's steel structure industry is relatively 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%.

From the perspective of enterprise type, Chinese steel structure enterprises are roughly divided into three categories: one is the general contracting of construction projects as the core business, the steel structure is mainly a large central enterprise used in the system; the second is the private enterprises of steel structure product manufacturing and steel structure construction project contracting; the third is the small and medium-sized steel structure product manufacturing enterprises.

2. Steel structure industry is accelerating towards standardization, scale and marketization.

By comprehensively improving the efficiency of design units and construction enterprises, it is expected that the construction cost of prefabricated steel structure will be further reduced, which is conducive to the continuous expansion of the market share of steel structure.
3. Photovoltaic buildings are a new direction of green buildings, and new buildings gradually turn to photovoltaic buildings
Green building is an important way to reduce emissions in the construction industry, and the general trend of promoting green building. At present, the technical routes to realize green photovoltaic buildings are mainly divided into two categories: traditional BAPV (Building Attached Photovoltaic) and emerging BIPV (Building Integrated Photovoltaic).

As a new solution for photovoltaic buildings, BIPV has advantages in all fields and will gradually replace the BAPV market in the future. From the way of combining with buildings, BIPV has a wider use of space.

BAPV is mainly used in the transformation of idle space of buildings, and the ordinary photovoltaic modules are fixed on the color steel tile or cement roof through supports. In addition to the roof, BIPV application can also be used as photovoltaic curtain wall, photovoltaic shading, photovoltaic greenhouse, etc., with more application scenarios.