Prefabricated Steel Frame House
A prefabricated steel frame house is a type of building that uses a steel structural system as its main load-bearing structure and adopts a prefabricated construction method. The following provides an introduction from aspects such as structural characteristics, application advantages, application status, development challenges and goals, and brands and prices:
Structural Characteristics: Prefabricated steel frame houses employ steel structural systems, such as steel frames and steel frame-bracing systems, as their main load-bearing structures, and are constructed using a prefabricated construction method. They feature a variety of materials, including sandwich panels, steel structures, and concrete, with processes encompassing welding, assembly, and bolt connections.
Application Advantages: They offer numerous significant advantages. Firstly, they have good earthquake resistance. Steel structures possess good ductility and toughness, enabling them to effectively absorb and dissipate seismic energy and reduce earthquake damage to the house. Secondly, they have a fast construction speed. The prefabricated construction method transfers a large amount of on-site work to the factory, reducing on-site construction time and procedures and significantly shortening the construction cycle. Thirdly, they are green and low-carbon. Steel can be recycled, reducing the generation of construction waste and meeting the requirements of sustainable development. Fourthly, they have high space utilization. The cross-sectional dimensions of steel structural members are small, increasing the indoor usable area. Fifthly, they have a flexible layout. The layout and functions of the house can be flexibly adjusted according to needs.
Application Status: In China, prefabricated steel frame houses have been applied in multiple affordable housing and commercial housing projects, such as Baotou Wanjun Metropolis and Hangzhou Qianjiang Century City Talent Special Housing. There are numerous brands on the market, such as Forime, Baisheng Creative, and Wanlong, with a wide range of applications covering scenic spots, construction sites, and worker dormitories.
Development Challenges and Goals: Since 2016, national policies have vigorously promoted prefabricated buildings, but the industry still faces challenges such as relatively high construction costs, some physical properties, and market acceptance. However, the industry is improving these issues through system innovation. According to the plan, by 2030, the target proportion of steel structure applications in newly started residential buildings nationwide is expected to reach about 10%. Currently, it accounts for about 7% of newly built prefabricated buildings in China.
Brands and Prices: The prices of different types and specifications of prefabricated steel houses vary greatly. For example, a movable prefabricated house costs 79.2 yuan per square meter, and a light steel villa costs 1250 yuan per square meter.
