Prefabricated H-Steel House

Prefabricated H-steel houses are residential forms that use hot-rolled H-section steel as the main load-bearing component. Also known as heavy-steel villas, they feature high structural strength, efficient construction, and superior performance.

Structure and Materials:
Prefabricated H-steel houses utilize hot-rolled H-section steel or wide-flange steel beams as their core load-bearing components. The steel thickness is typically ≥8 mm, providing significantly higher strength than traditional brick-and-mortar structures and enabling support for multi-story or large-span buildings. Their structural system forms an integrated framework through flexible connections between steel beams and columns, ensuring stability while offering flexibility for interior space layout.

Construction Process:
These houses adopt a highly modular design, with components prefabricated in factories and then transported to the site for assembly. The main framework can be completed in just a few days, reducing the overall construction period by approximately 60% compared to traditional buildings. Factory-based production minimizes on-site wet work (such as concrete pouring), significantly reducing dust and noise pollution, and aligning with green construction requirements.

Performance Advantages:

• Exceptional Earthquake Resistance: The flexible connections in steel structures effectively absorb seismic energy, achieving an earthquake resistance rating of over 9, avoiding the risk of wall cracking seen in brick-and-mortar structures.
• Environmentally Friendly and Energy-Efficient: Steel is 100% recyclable, reducing resource waste. Composite wall panels offer excellent thermal insulation, reducing heating and cooling energy consumption by 30% in winter and summer, respectively, and releasing no formaldehyde, meeting national green building standards.
• Long Service Life: Hot-dip galvanizing enhances steel's corrosion resistance, providing durability exceeding that of brick-and-mortar structures (50-60 years) and reducing maintenance costs to just 50% of traditional houses.
• High Space Utilization: With no internal load-bearing walls, spaces can be flexibly divided according to needs, meeting diverse living requirements.

Application Scenarios and Market Situation:
Primarily used for 2-4 story villas, they are suitable for families or developers with sufficient budgets, particularly gaining rapid popularity in rural self-built housing and urban villa sectors. According to statistics, steel structure buildings accounted for over 20% of China's construction market in 2024, with heavy-steel villas being a significant component. Typical projects include Baotou Wanjun Metropolis and Hangzhou Qianjiang Century City Talent Special Housing, among other affordable and commercial housing projects, validating their technical maturity and market acceptance.