Dapeng Town Industrial Park, Tongshan District, Xuzhou City, Jiangsu Province, China
Equipment steel structure is an important branch of heavy equipment manufacturing industry, and the development speed of equipment steel structure is closely related to the development speed of industry. The types and application fields of equipment steel structure are very wide, mainly used in special buildings, equipment racks and brackets (such as cement kiln tail, power and communication towers), boiler steel frames (power boilers and other boiler towers), special equipment towers (oil pipelines, offshore platforms, port equipment, chemical equipment), etc. in the industrial field.
The growth rate of national industrial added value is stable, and it is expected that the future market demand for equipment steel structure will maintain a stable development space. As the market’s recognition of equipment steel structure continues to increase, the application of equipment steel structure is expected to continue to grow.
As of the end of 2018, there were 117 super high-rise buildings over 250m under construction in China. 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 over 500m under construction. The materials used in super high-rise buildings are mainly steel-concrete mixed structures, with a total of 229 buildings (75%), and pure steel structures over 250m total 17 buildings, accounting for about 6%.
For buildings over 200m abroad, steel structures account for more than 85%. The United States and Japan are the countries that use the most steel structures in high-rise buildings.
Building light steel structure is mainly used in light industrial plants, steel structure houses, etc. The development speed of industrial plant buildings is closely related to the scale of industrial development. The good trend of sustained and stable growth of my country’s national economic development is certain, and the application of steel structure in the field of industrial plants will maintain a trend of sustained growth.
In terms of steel structure houses, my country is far behind the level of developed countries. The foreign low-rise light steel housing system is relatively mature. The United States, Japan, Australia and other countries have long widely adopted light steel structures in low-rise houses. More than 90% of the steel structure buildings built in Japan are low-rise buildings of 5 floors or less. The market share of light steel structure houses in Australia is 15%, and some areas in Europe have also adopted townhouse steel structure houses.
my country’s steel structure has been widely used in super high-rise, large-span space structures, and industrial plants. The design theory, specifications, and construction technology of steel structures are also very mature. With the acceleration of the development of building industrialization and steel structure residential industrialization, and with the help of national top-level design and industrial policies, prefabricated steel structure buildings will enter a comprehensive acceleration stage, and prefabricated steel structure residential buildings will have a wider range of applications and development prospects. With the further increase in the urbanization rate, the market space for steel structure residential buildings will further expand.
The road traffic market has a large demand for steel structures in the fields of railways, highways, urban transportation, and bridges. Modern high-speed railway construction requires the roadbed to have high impact resistance and high flatness. Recently, most of the newly built high-speed railways in China adopt elevated designs, and steel structures are used as the main structures of elevated bridges. With the acceleration of my country’s urbanization process, major cities across the country have begun a new round of infrastructure construction, which requires the construction of a large number of overpasses, viaducts, water bridges, pedestrian bridges and rail transit.
my country’s investment in transportation infrastructure such as railways, highways, and bridges has a great driving effect on the development of bridge steel structures, and the demand for bridge steel structures in the market will increase significantly in the next few years. In terms of railways, since the construction of the “four vertical and four horizontal” railway rapid passenger transport channels and three intercity rapid passenger transport systems has started one after another, my country’s railway construction has entered a stage of rapid development of high-speed railways. High-speed railway infrastructure projects mostly use steel structure elevated bridges as roadbeds, and railway infrastructure investment will also tend to choose steel structure bridge projects.
Space steel structures are mainly used in various large venues, including large public buildings such as sports venues, exhibition halls, conference halls, activity centers, airport terminals, and stations. Due to its light weight, high strength and strong plasticity, steel can easily realize large continuous space structures and diversified designs, giving steel structures a more significant competitive advantage in the field of airport and other venue construction.
In terms of public buildings such as hospitals and schools, in September 2020, nine departments including the Ministry of Housing and Urban-Rural Development issued opinions on accelerating the industrialization of new buildings and proposed to “encourage hospitals, schools and other public buildings to give priority to the use of steel structures, and actively promote the construction of steel structure residential and rural houses.” , many places have also introduced relevant policies. For example, Beijing encourages schools, hospitals, gymnasiums, shopping malls, office buildings and other new public buildings to give priority to steel structure buildings, of which the single above-ground building area invested by the government is more than 10,000 square meters (inclusive) New public buildings should use steel structures.
