Prefabricated Assembly-type Housing Construction

Prefabricated assembly-type housing construction involves transferring a significant amount of on-site construction work from traditional building methods to factories. Building components and accessories are manufactured in factories, transported to construction sites, and assembled and installed on-site using reliable connection methods.

Efficient and Rapid Construction Process

The construction speed of prefabricated assembly-type housing far exceeds that of traditional buildings. Taking the fully prefabricated rural houses in Jiangbei, Ningbo as an example, it takes only seven days from an empty lot to the erection of the main structure of the house. During construction, workers first build the chassis frame of the house on the pre-poured cement foundation, lay floor joists, and install wooden panels to form a solid platform. Then, they move the prefabricated wall modules onto the platform, erect and fix them. After the exterior wall frame is enclosed, they proceed with the construction of the internal partition wall skeletons and the laying of the second-floor floor beams. Finally, they construct the roof by transporting and installing the large triangular trusses in place. The entire process is well-organized, with each step closely linked, significantly shortening the construction cycle.

Diverse Structural Types

Prefabricated buildings mainly include prefabricated concrete structures, steel structures, and modern timber structures. Different types of structures have their own characteristics and advantages. For example, steel structures offer high strength, light weight, and fast construction speed; modern timber structures provide excellent thermal insulation and environmental performance. These diverse structural types offer more choices for building projects with different needs.

In Line with Modern Industrial Production Methods

Adopting standardized design, factory-based production, assembly-based construction, information-based management, and intelligent applications represents modern industrial production methods. Standardized design enables the universality and interchangeability of components, improving production efficiency. Factory-based production ensures the quality and precision of components. Assembly-based construction reduces the workload and time of on-site operations. Information-based management and intelligent applications enhance the management level and efficiency of the construction process.

Significant Development Implications

The development of prefabricated buildings represents a major transformation in construction methods, contributing to resource and energy conservation, reduction of construction pollution, improvement of labor productivity, and enhancement of quality and safety standards. It also promotes the deep integration of the construction industry with informatization and industrialization. Meanwhile, various regions are actively promoting the development of prefabricated buildings. For instance, by 2025, the proportion of newly started prefabricated buildings in Hainan Province will reach 80%. Starting from 2026, all residential land parcels auctioned in Guangzhou will implement prefabricated buildings, and commercial and industrial land parcels will adopt them as much as technically feasible.