House Prefabricated Slab Structure Diagram
Currently, a direct house prefabricated slab structure diagram cannot be provided, but an explanation can be given by combining the types and structural characteristics of prefabricated slabs. Prefabricated slabs are cement components prefabricated in factories and are widely used in house construction. Their structural characteristics are closely related to their types. The following is an introduction from two aspects: types and structural composition.
Prefabricated slabs are mainly divided into two types: solid and hollow. Solid prefabricated slabs have a solid structure with no internal voids. This structure gives them strong load-bearing capacity, enabling them to withstand large loads. They are suitable for building parts with high structural strength requirements, such as beneath load-bearing walls in some low-rise buildings or on the floors of industrial buildings with high load requirements. However, due to the need for a large amount of concrete material in the solid structure, their own weight is relatively large, which to some extent increases the self-weight of the building and requires a relatively high load-bearing capacity of the foundation. Hollow prefabricated slabs reduce the amount of concrete in non-load-bearing parts by setting voids inside the slabs to achieve lightweighting. The shapes and arrangements of these voids are diverse, with common ones being circular and square. Under the premise of ensuring a certain load-bearing capacity, the hollow structure greatly reduces the weight of the prefabricated slabs, lowers the self-weight of the building, helps reduce foundation costs, and is convenient for transportation and installation, improving construction efficiency. It is widely used in multi-story residential buildings and other structures.
Taking the prefabricated concrete steel bar truss floor deck (non-removable bottom formwork) system as an example, its structural composition is unique. This system mainly consists of two parts: steel bar trusses and concrete non-removable bottom formwork. The steel bar truss is the core load-bearing component of the system. During the construction phase, it provides the necessary stiffness for the entire floor deck, enabling it to withstand various loads during construction, such as the walking of construction personnel and the placement of construction equipment, ensuring the safety and stability of construction. The concrete non-removable bottom formwork serves a dual function as both formwork and a load-bearing component. During construction, it acts as formwork, providing a flat and stable pouring surface for the cast-in-place concrete to ensure the molding quality of the cast-in-place concrete. After the concrete reaches the design strength, the concrete bottom formwork and the cast-in-place concrete work together to bear various loads during the use of the building, improving the overall performance and durability of the structure.
