Explanation of the Principle Diagram of Prefabricated Panel Houses

Prefabricated panel houses mainly use concrete prefabricated components produced and processed in prefabrication yards as floor slabs, and their structural principles are based on the combination and load-bearing characteristics of prefabricated components.

Production Process of Prefabricated Panels

When making prefabricated panels, first, a hollow mold is nailed together using wooden planks. This mold determines the shape and size of the prefabricated panels. In the hollow part of the mold, steel bars are arranged according to design requirements. The steel bars play a role in enhancing the strength and load-bearing capacity of the prefabricated panels. After that, concrete materials such as cement are poured into the mold to ensure that the concrete fully fills the gaps around the steel bars. Once the concrete dries and hardens, the outer wooden planks are knocked off, and a complete prefabricated panel is produced. This production method can be carried out centrally in prefabrication yards, which is conducive to improving production efficiency, ensuring product quality, and facilitating mass production.

Structural Load-Bearing Characteristics of Prefabricated Panel Houses

Old-style prefabricated panel buildings have unique characteristics in terms of structural load-bearing. Their walls, floor slabs, and roofs usually bear loads separately, with each component independently taking on the corresponding loads. In terms of connection methods, the panels are mainly connected to each other and to the walls through overlapping and simple connections. For example, the floor slabs may simply rest on the walls and be fixed by some simple structural measures. This connection method results in relatively poor overall integrity of the house. Unlike monolithic poured structures, which can tightly combine all components into an organic whole and evenly distribute forces, this type of connection cannot achieve the same effect.

Advantages and Disadvantages of Prefabricated Panel Houses

Due to the lack of overall integrity, prefabricated panel houses are prone to problems when encountering lateral shaking (such as natural disasters like earthquakes), uneven foundation settlement, or sudden changes in local loads. The weakest connection points, such as the joints between panels and between panels and walls, are often the first to be damaged, leading to structural damage to the house and affecting its safety and stability. However, prefabricated panel houses also have their advantages, such as fast construction speed and relatively low cost. They still have certain applications in projects with high requirements for construction periods and costs.