Prefabricated Structure for Whole House

The prefabricated structure for whole houses primarily involves two forms: prefabricated assembled buildings and modular buildings.

Prefabricated Assembled Buildings

Prefabricated assembled buildings produce building components through industrialization and assemble them on-site. Their main types include panel-assembled, box-assembled, and frame-assembled structures. Technologically, they encompass prefabricated concrete and steel structures, with components such as beams, slabs, walls, and columns being prefabricated products. This building form offers significant advantages, including shortened construction periods and reduced pollution. For example, panel-assembled buildings use prefabricated wall panels and floor slabs as core components, enabling rapid construction through on-site assembly; box-assembled buildings enhance construction speed by 50%-70% through the combination of prefabricated functional units.

Modular Buildings

Modular buildings represent a more integrated model within prefabricated assembled buildings. They disassemble buildings into independent modules, which are manufactured in factories and then transported to the site for assembly. Their production process is highly standardized, with ceilings, floors, plumbing, and electrical systems all prefabricated on factory assembly lines before being transported to the site for assembly like building blocks. This building form offers notable advantages: construction periods can be shortened by over 60%, with controllable quality, energy efficiency, environmental protection, ease of maintenance, and a reduction in on-site labor by approximately 50%. It significantly reduces nuisance factors such as noise, dust, construction waste, and traffic congestion. For example, a public housing project in Shenzhen, Guangdong, was assembled from 6,028 concrete modules, reducing the completion and delivery time from 2.5-3 years to just 1 year, fully demonstrating the efficiency of modular buildings.

Composite Slabs

Composite slabs, as an important part of prefabricated structures, are formed by the superposition of prefabricated slabs and cast-in-place reinforced concrete layers. They are suitable for high-rise buildings and large-span buildings, offering advantages such as strong overall continuity, template savings, and ease of transportation and installation. By combining prefabrication with cast-in-place construction, composite slabs ensure structural integrity while improving construction efficiency, making them an indispensable part of prefabricated structures.