At the beginning of the 20th century with the start of the Industrial Revolution, the scale of the iron and steel industry in some developed countries expanded rapidly, and steel-structured housing has developed preliminarily. So far, the development history of steel structure housing technology has reached more than 100 years in developed countries in the world. In Europe, America, Japan and other places, the amount of steel used in construction has reached more than 30% of the steel output, and the building area of steel structures accounts for about 40% of the total building area, forming their own steel structure housing systems.
France is one of the earliest countries to promote the industrialization of housing. After 30 years of development, France's steel structure housing system is mainly used in multi-storey housing.
Japan is the first country in the world to rise in industrialization of housing. Japan is an island country with frequent earthquakes. Light steel structures are widely used. At present, about 70,000 low-rise dwellings are newly built in Japan each year, and steel structure dwellings account for more than 70%.
The construction technology of steel structure housing in the United States is derived from traditional wooden structure housing. It is also the country that adopted the earliest steel structure housing. In 1965, young steel structures accounted for only 15% of the construction market in the United States, and increase to 53% in 1990. In 2000, it has reached 75%. At present, there are 200,000 small-frame steel-framed houses in the United States, and light steel structures are used in villas and multi-storey houses. In the 1960s, the United States began to develop light steel keel structures for the construction of low-rise assembly houses and townhouses. From the 1980s to the present, the United States has gradually realized the standardization of components, the production efficiency has increased significantly, and housing has reached the requirements of energy conservation and environmental protection. In 1997, the United States issued the "Guiding Methods for the Design of Cold-Formed Steel Skeletons for Residential Buildings", which comprehensively guided the design and construction of light steel keel housing.
China's light steel construction has alsodeveloped rapidly in the last decade. In September 2016, the General Office of the State Council issued the "Guiding Opinions on VigorouslyDeveloping Prefabricated Buildings". In September 2018, the Ministry of Housing and Urban-Rural Development issued the "Technical standard forcold-formed thin-walled steel multi-storey residential buildings, formed thin-walled steel multi-storey residential buildings ", while the building association and some provinces and cities have also formulated and promulgatedindustry and local standards. China Light Steel Housing also creatively improved the filling materials and construction technology, such as polyurethane filling, Expanded Polystyrene (EPS) molding customization, foamed concrete pouring, and self-waterproofing of the structure, and other technologies, which greatly improved thetechnical indicators of the building.
China produced the first cold bending mill and built a lightsteel structure plant in 1958. Thelight steel villa appeared in China early. The information technology was notdeveloped well at that time, so it took many years for people to understand thelight steel villa. With the era of advanced information, everything in life isconstantly changing. Light steel villas have also undergone major changes. Three technical standards andregulations represent the development process of cold-formed thin-walled steel houses (light steel houses for short) in China.
Generally speaking, the steel structure housing system is very mature in terms of modular design, standardized production, assembly construction, energy saving, fire protection and earthquake resistance, especially the application of supporting components with less pollution and short cycletime such as matching walls, floor slabs, and roofs.The Philippines has a hot climate,frequent typhoons, many earthquakes, and limited island country resources. This advanced and environmentally friendly light steel structure building system is bound to become a new trend.