Chongqing Prefabricated Modular Housing

Chongqing prefabricated modular housing, also known as modular integrated housing, exhibits significant characteristics in production, technology, and application, with a positive development trend.

Production Situation

At the Southwest Production Base of Zhonglai Box Industry Modular Integrated Housing in Hufeng Town, Tongliang District, Chongqing, workers produce block-style integrated housing. The structural components for prefabricated building construction are manufactured in advance and then finely assembled on-site at the destination to form complete buildings.

Technical Characteristics

• Materials and Processes: Zhonglai Box Industry adopts thickened galvanized steel coils and fireproof cotton processes, leading the industry. It achieves Class A fire resistance and an earthquake resistance rating of up to magnitude 8.
• Structural Safety: The prefabricated concrete houses employ a "full-frame shear wall" design, with a skeleton constructed from national standard threaded steel bars and integrated concrete pouring, ensuring a robust structural system. They can withstand earthquakes of magnitude 8 (with a designed seismic fortification intensity of 7 degrees). Under typhoons of magnitude 12, the prestressed bolts connecting the modules remain tight, and the fire resistance limit of the concrete exceeds 3 hours.
• Foundation Adaptability: Addressing the complex mountainous terrain and limited construction land in Chongqing, the structural stability and foundation adaptability are enhanced. Adjustable legs and reinforced connectors are used to ensure safe installation on complex geological conditions such as slopes and soft soils.

Application Areas

They cover temporary buildings, such as those on construction sites; commercial uses, including scenic area and camping base housing, urban municipal facilities, container offices, shops, and exhibition halls; residential purposes, with custom-built houses for self-occupation by the public, featuring low costs and simplified procedures; and special projects, such as rural revitalization, scenic area homestays, and construction site camps.

Advantages

High construction efficiency: The overall installation of a 100㎡ house takes only 1 day, reducing the construction period by 90% compared to traditional methods. Cost-effectiveness: The main construction cost of a 120㎡ rural self-built house is 30% lower than that of a traditional brick-concrete structure, with a 90% reduction in construction waste. Environmental protection and energy conservation: Prefabricated production reduces on-site construction difficulty and earth excavation. Some models integrate solar power supply and rainwater collection systems. Strong climate adaptability: Ventilation and moisture-proof designs are crucial, with most models equipped with double-layer walls and dehumidification systems.

Industry Trends

Foreign trade growth: This year, customers from countries such as the United States, Australia, and Russia have conducted inspections. The company has established a foreign trade department and plans to achieve an export production value of 40 million to 50 million yuan next year. Policy support: Tongliang has promoted product exports through various means and successfully established the China (Chongqing) Free Trade Zone Tongliang Linked Innovation Zone.