Indoor Prefabricated Frame Structure House

An indoor prefabricated frame structure house is a building form that uses reinforced concrete beams, slabs, and columns as the load-bearing framework, combined with lightweight partition panels for assembly. The following provides an introduction from the aspects of structural characteristics, construction methods, advantages, and disadvantages:

Structural Characteristics: The walls only serve as enclosure and separation functions and do not bear weight. This makes the building layout more flexible, allowing for the formation of larger spaces. If lightweight panels are used, the structural self-weight can be significantly reduced compared to brick-masonry structures, and the walls are thinner, relatively increasing the actual usable area of the house. The main body consists of beams and columns, which are easy to standardize, facilitating industrialized construction and improving construction efficiency.

Construction Methods: Frame structures can be classified into four types based on construction methods: prefabricated frames, cast-in-place monolithic frames, prefabricated monolithic frames, and semi-cast-in-place frames. Indoor prefabricated frame structure houses may belong to the prefabricated frame type. Taking the prefabricated frame construction of an A-frame house as an example, the main frame structure is first completed, with door and window openings reserved in the end frames and firmly connected to the main structure. The floor slab system is installed according to the main support points of the roof frame, using horizontal beams and support members to evenly distribute the load. Finally, the structural assembly, insulation, and interior and exterior decoration stages are completed.

Advantages: The building layout is flexible, allowing for the formation of larger spaces to meet diverse usage needs; the structural self-weight is light, and the walls are thin, increasing the actual usable area of the house; the main body is easy to standardize, facilitating industrialized construction, improving construction efficiency, and shortening the construction period.

Disadvantages: Frame structures are flexible structures with relatively weak resistance to horizontal loads and small lateral stiffness. Their seismic performance is relatively poor, and generally, the building height should not exceed 60 meters, and the height-to-width ratio should not exceed 5; the steel consumption is higher than that of brick-masonry structures, resulting in relatively higher costs; some column cross-sectional dimensions may protrude outside the walls, affecting the interior aesthetics; the self-weight of reinforced concrete frames is large, and construction is significantly affected by seasons. For example, special construction measures need to be taken to ensure project quality during low-temperature or rainy season construction.