Prefabricated Building Structure

Prefabricated building structure refers to a construction method where building components are industrially produced and assembled on-site, known as prefabricated assembled buildings. This approach offers advantages such as shortened construction periods and reduced pollution. However, traditional prefabricated panel houses have issues like weak earthquake resistance. Chinese prefabricated houses have demonstrated outstanding performance in the global market.

Types and Technologies of Prefabricated Assembled Buildings

The main types of prefabricated assembled buildings include panel-type, box-type, and frame-type assemblies. Panel-type assemblies use prefabricated wall panels and floor slabs as core components. Box-type assemblies combine prefabricated functional units, increasing construction speed by 50%-70%. Modular buildings represent a higher level of integration, where buildings are divided into modules manufactured in factories and assembled on-site, reducing construction periods by over 60%. The technologies encompass prefabricated concrete structures and steel structures, with components including prefabricated beams, slabs, walls, and columns.

Development History and Advantages of Prefabricated Assembled Buildings

China's prefabricated concrete technology originated in the 1950s, initially applied in factory and residential construction. It experienced a revival in the 21st century due to production efficiency and environmental advantages. Companies like Vanke Group have developed assembled shear wall residential structural systems and applied prefabricated frame technologies in projects, such as the Nanjing Jindi Yufang project, which adopted a prestressed prefabricated concrete assembled integral frame structural system. Compared to traditional buildings, prefabricated assembled buildings offer advantages like shortened construction periods and reduced pollution, with modular buildings showing particularly significant reductions in construction time.

Characteristics and Issues of Prefabricated Panel Houses

Prefabricated panel houses are constructed using prefabricated panels as primary components. These panels are factory-produced cement components available in solid and hollow types, with hollow structures achieving lightweighting by reducing non-load-bearing concrete. However, with advancements in construction technology, cast-in-place concrete and assembled buildings are gradually replacing traditional prefabricated panel houses. Existing prefabricated panel houses commonly face issues such as weak earthquake resistance, poor sound and thermal insulation, and a service life of approximately 30-50 years.

Global Market Performance of Chinese Prefabricated Houses

Chinese prefabricated houses have demonstrated outstanding performance in the global market. In the first four months of 2026, enterprises within the Guangzhou Customs district exported movable houses worth 1.4 billion RMB, a year-on-year increase of 38.1%. The Shenzhen port exported movable houses worth 1.68 billion RMB, a year-on-year increase of 19.6%, with exports to over 150 countries and regions.