The Development History of Steel Structures

Although China made early achievements in iron structures, it remained at the level of iron buildings for a long time. It was not until the end of the 19th century that China began to adopt modern steel structures. After the establishment of the People's Republic of China, the application of steel structures has made great progress, far exceeding the past in both quantity and quality. The floor of the light steel structure is composed of cold-formed thin-walled steel frames or composite beams, floor OSB structural plates, supports, connectors, etc. The materials used are oriented strand board, cement fiberboard, and plywood. These lightweight floors can withstand a load of 316-365 kilograms per square meter.

The number of steel structure buildings indicates the economic strength and level of economic development of a country or region. After entering the year 2000, China's national economy grew significantly, its national strength increased significantly, and its steel production became a world power. It proposed to "actively and reasonably use steel" in construction, thus breaking free from the constraints of "restricting steel use". Steel structure buildings gradually increased in economically developed areas. Especially around 2008, driven by the Olympic Games, there was a boom in steel structure construction, strong market demand, and the rapid development of steel structure construction. A large number of steel structure venues, airports, stations, and high-rise buildings were built, among which some steel structure buildings had world-class production and installation technology, such as the Olympic National Stadium and other buildings.

After the Olympics, steel structure construction has been popularized and continuously developed. Steel structures are widely used in construction, railways, bridges, and residential areas. There are tens of thousands of steel structure enterprises of various scales, and the world's advanced steel structure processing equipment is basically complete, such as multi head multi-dimensional drilling machines, steel pipe multi-dimensional intersecting line cutting machines, corrugated plate automatic welding machines, etc. And hundreds of steel structure enterprises have world-class processing and manufacturing capabilities, such as special grade and first-class steel structure manufacturing enterprises. The annual steel production reaches over 600 million tons, and the variety of steel can fully meet the needs of construction. The steel structure design specifications, steel structure material standards, steel structure engineering construction quality acceptance specifications, as well as various professional specifications and enterprise construction methods are basically complete.