New Type Prefabricated Panel House

The new type prefabricated panel house is a type of house constructed primarily with prefabricated panels. With the development of construction technology, its renovation follows a differentiated strategy.

Basic Structure and Types of Prefabricated Panel Houses

The core component of a prefabricated panel house is the prefabricated panel, which is a cement component produced in a factory using a specific process. During production, a wooden model is first nailed together, followed by the placement of steel bars, and finally, cement is poured to form the panel. Prefabricated panels come in two types: solid and hollow. The hollow structure reduces the amount of concrete in non-load-bearing parts, achieving lightweighting, lowering the overall weight of the house, and facilitating transportation and installation.

Impact of Construction Technology Development on Prefabricated Panel Houses

With the continuous advancement of construction technology, cast-in-place concrete and prefabricated buildings have gradually emerged and are replacing traditional prefabricated panel houses. Prefabricated buildings use modular factory-prefabricated components, such as CMC combined modular buildings, which significantly enhance the building's seismic performance through steel-concrete integrated pouring. Moreover, the construction period of prefabricated buildings is 30% shorter than traditional methods, improving construction efficiency and reducing costs.

Main Forms of Prefabricated Houses and Advantages of Chinese Enterprises

"Prefabricated houses" mainly come in three forms: steel structure, concrete, and wood. In China, enterprises have a comparative advantage in steel structure and concrete forms. Steel structure prefabricated houses are lightweight and well-suited for ocean transportation and high-rise building construction. Concrete prefabricated houses, on the other hand, are closer to traditional living experiences and have high acceptance in the domestic market, meeting the needs of most people for their living environment.

Renovation Strategies for Prefabricated Panel Houses

The renovation of prefabricated panel houses is not simply a matter of demolition. The "Implementation Guide for Urban Renewal Actions" issued by the housing and construction department at the end of 2024 clearly states the principle of "resolutely preventing large-scale demolition and construction" and advocates a differentiated strategy that combines "preservation and renovation" with "demolition and reconstruction". For prefabricated panel houses with good structural safety but outdated functional facilities, measures such as reinforcement and functional upgrades are mainly used to extend their service life. For those with serious structural safety hazards that cannot meet safety requirements through reinforcement and repair, demolition and reconstruction are implemented.