Prefabricated Housing Building Structure

Prefabricated housing building structure is a form of construction that involves industrial production of building components and on-site assembly. The main types include panel-assembled, box-assembled, and frame-assembled structures, with technologies encompassing prefabricated concrete and steel structures. The components include prefabricated products such as beams, slabs, walls, and columns.

Panel-assembled buildings: These use prefabricated wall panels and floor slabs as core components. This structural form can expand the usable area of a building because the components are prefabricated in a factory with high precision, reducing errors and material waste during on-site construction. However, it also has certain limitations, namely a restricted degree of design flexibility. Since the specifications and dimensions of the wall panels and floor slabs are already determined in the factory, it is difficult to make significant adjustments and changes during on-site assembly, making it less suitable for buildings with unique shapes and complex functions.

Box-assembled buildings: These are formed by combining prefabricated functional units. Their greatest advantage is a significant increase in construction speed, which can be boosted by 50%-70%. This is because most components are already manufactured in the factory, and only assembly is required on-site, greatly shortening the construction period. However, this structural form has high requirements for transportation and lifting equipment. The prefabricated functional units are usually large in volume and heavy in weight, requiring large transportation vehicles and lifting equipment to transport them to the construction site and install them accurately.

Modular buildings: These represent a more highly integrated mode of prefabricated construction. They divide a building into individual modules, which are manufactured in a factory and then transported to the site for assembly. For example, the ceiling, floor, water and electricity pipelines, and even the waterproof layer of the bathroom are all manufactured on an assembly line in the factory. This mode is like building with blocks, combining various modules to form a complete building. It not only improves construction efficiency but also ensures the consistency and stability of building quality.