Steel Prefabricated Housing

Steel prefabricated housing is a form of construction centered around a steel structural system, assembled on-site using industrially prefabricated components. It falls under the category of prefabricated modular buildings.

Core Structures and Technical Types

Steel prefabricated housing employs steel frame or steel frame-bracing systems as the primary load-bearing structures, with components manufactured industrially and transported to the site for assembly. Its technology encompasses both prefabricated concrete and steel structures, with main types including:

1. Panel-based prefabrication: Primarily involves assembling prefabricated wall panels, floor slabs, and other components, suitable for standardized residential construction.
2. Box-based prefabrication: Combines prefabricated functional units (e.g., kitchen and bathroom modules), increasing construction speed by 50%-70%, but requiring higher transportation and lifting equipment capabilities.
3. Frame-based prefabrication: Uses a steel frame as the skeleton, paired with prefabricated wall panels and floor slabs, offering flexible spatial layouts suitable for high-rise buildings.

Advantages and Application Scenarios

Steel prefabricated housing offers advantages such as good earthquake resistance, rapid construction speed, green and low-carbon footprint, high space utilization, flexible layouts, and recyclable materials. Its application scenarios are extensive, including:

• Affordable and commercial housing: Projects such as Baotou Wanjun Metropolis and Hangzhou Qianjiang Century City talent-specific housing.
• Temporary buildings: Steel structure mobile homes, container mobile homes, and movable panel houses meet demands for emergency shelter and on-site offices.
• Policy-driven promotion: Since 2016, national policies have vigorously promoted prefabricated buildings, planning for steel structures to account for 10% of new residential construction by 2030 (currently around 7%). The industry is reducing costs and enhancing physical properties and market acceptance through technological innovation.

Market Products and Pricing

The market offers a rich variety of steel prefabricated housing products from brands such as Guangxia Construction, Jujiaren, and Guangmei Changjia, including steel structure mobile homes, container mobile homes, and movable panel houses. Prices vary significantly based on specifications and brands:

• Steel structure container houses: Approximately 9,500 yuan per unit, suitable for long-term use scenarios.
• Light steel movable panel houses: Approximately 80 yuan per unit, low cost but with weaker durability.

Challenges and Future Directions

The industry currently faces challenges such as high construction costs, the need to optimize certain physical properties (e.g., sound insulation, thermal insulation), and insufficient market awareness. Future development directions include:

• System innovation: Reducing costs through modular design and intelligent production.
• Performance enhancement: Developing new composite materials to improve sound insulation and thermal insulation.
• Policy support: Improving standard systems to promote the widespread adoption of steel structures in residential construction.