Prefabricated Panel Assembled Housing

Prefabricated panel assembled housing is a type of building constructed primarily using prefabricated panels. It belongs to the category of prefabricated assembled buildings and features characteristics such as industrial production and rapid assembly, but it also has limitations such as weak earthquake resistance and poor sound and thermal insulation.

I. Definition and Types of Prefabricated Panel Assembled Housing

Prefabricated panel assembled housing is centered around factory-prefabricated concrete components (prefabricated panels), with the main building structure assembled on-site. Prefabricated panels come in two types: solid and hollow. Solid panels have a stable structure and are suitable for areas with high load-bearing requirements. Hollow panels achieve lightweighting by reducing non-load-bearing concrete, lowering material costs and improving transportation efficiency. Based on assembly methods, prefabricated assembled buildings can be classified into panel assembly, box assembly, and frame assembly types. Among them, panel assembly uses prefabricated wall panels and floor slabs as the main components, with limited design flexibility but high space utilization. Box assembly combines prefabricated functional units (such as kitchens and bathrooms), with construction speeds 50%-70% faster than traditional methods, but it requires higher transportation and lifting equipment.

II. Technological Advantages and Application Scenarios

The core advantages of prefabricated panel assembled housing lie in its short construction period and energy efficiency and environmental protection. The industrial production model reduces on-site wet work, shortening construction time (for example, the construction period of CMC combined modular buildings is 30% shorter than traditional methods), while also reducing construction waste and dust pollution. Additionally, the standardized production of prefabricated components enhances building quality stability and adaptability, making them suitable for various scenarios such as residential housing, factories, and temporary buildings. For instance, in the first four months of 2026, enterprises in the Guangzhou Customs district exported movable houses worth 1.4 billion yuan, a year-on-year increase of 38.1%, while exports from the Shenzhen port reached 1.68 billion yuan, a year-on-year increase of 19.6%, reflecting strong market demand for prefabricated buildings.

III. Existing Problems and Improvement Directions

Currently, prefabricated panel houses generally suffer from issues such as weak earthquake resistance and poor sound and thermal insulation performance. Early prefabrication techniques were limited by material strength and connection node design, resulting in insufficient structural integrity, and some regions have initiated demolition work. To enhance performance, modern techniques use steel-concrete integrated pouring (such as CMC modules) to strengthen earthquake resistance and adopt new insulation materials to improve thermal insulation. Additionally, the service life of prefabricated components is approximately 30-50 years, requiring regular maintenance to extend their operational lifespan. With the resurgence of prefabricated concrete technology in the 21st century, the prefabricated shear wall residential structural system developed by companies like Vanke has further promoted the application of prefabricated buildings in high-rise residential projects.