Prefabricated Modular Simple Housing

Prefabricated modular simple housing is a type of green building developed based on the needs for environmental protection and material innovation. It achieves house construction through factory-prefabricated components and on-site assembly, offering numerous advantages and having a wide range of applications.

Construction Methods and Characteristics

Prefabricated modular simple housing adopts the approach of factory-prefabricated components and on-site assembly. Its building materials are mainly recyclable materials, featuring a short construction period. For example, some prefabricated houses use prefabricated parts for assembly, completing the main structure in just 14 days. Meanwhile, it is lightweight and has low transportation energy consumption, making it widely applicable to different building parts. During construction, components such as foundation piles and beams can be prefabricated in advance and installed on-site like building blocks. For instance, a 5-ton foundation pile is fixed only with a base plate. The beams are quickly connected using mortise-and-tenon joints, and the stairs are installed by hoisting. After that, floor slabs are laid, and the gaps between components are grouted. During foundation construction, the foundation is first leveled, and a cushion layer is poured. A white plastic sheet is laid to prevent moisture loss from the concrete, promote hydration reactions, and enhance the strength and durability of the concrete. After the concrete solidifies, the base plates are installed. Then, a mobile crane is used to install the foundation piles, followed by the installation of the beams. After horizontal measurement and adjustment, the beams are fixed with nuts. The gaps are filled with expanding foam, and the nut-fixed areas are sealed with cement.

Application Scenarios

This type of building has seen some development abroad. Australia has set up prefabricated house supermarkets that provide prefabricated house materials and finished products for consumers to purchase. In China, in September 2010, Beijing carried out its first pilot application of assembled rural houses in Changyang Town, Fangshan District. The construction cost per square meter was about 1,800 yuan, lower than that of traditional self-built houses. These houses use environmentally friendly building materials processed from waste materials such as waste plastics, wood chips, and straw. They have zero formaldehyde, are moisture-proof and heat-insulating, and have a longer service life than ordinary color steel plate houses. Moreover, Beijing provides a financial reward of 20,000 yuan per household to farmers who adopt such houses and meet seismic and energy-saving standards.