Images of Non-Prefabricated Houses

We cannot directly provide images of non-prefabricated houses, but we can describe their characteristics in detail to aid in identification. Non-prefabricated houses typically refer to buildings constructed using traditional on-site pouring or masonry methods, differing significantly from prefabricated houses in terms of structure, construction techniques, and material usage. Here are their core characteristics:

Structural Forms and Materials

Non-prefabricated houses have diverse structural systems, commonly featuring brick-concrete or frame structures. Brick-concrete structures use brick walls as the main load-bearing elements, reinforced with reinforced concrete structural columns and ring beams to enhance overall integrity. The wall thickness is usually 240mm or 370mm, with regularly arranged brick seams visible on the surface. Frame structures, on the other hand, consist of reinforced concrete columns, beams, and slabs forming the load-bearing framework, with walls serving only as enclosures or partitions. These walls are often filled with lightweight materials (such as aerated concrete blocks or hollow bricks), resulting in a smooth surface without obvious brick seams. Roofs are commonly made of cast-in-place reinforced concrete slabs or wooden structures, with pitched roofs often covered with tiles and flat roofs laid with waterproof membranes or rigid waterproof layers.

Differences in Construction Techniques

Unlike the 'assembly-type' construction of prefabricated houses, non-prefabricated houses employ on-site wet construction. For example, the walls of brick-concrete structures need to be laid layer by layer, with the mortar fullness meeting regulatory requirements. In frame structures, beams, slabs, and columns require formwork erection, steel bar binding, concrete pouring, and curing to reach the design strength. During construction, details such as formwork joint marks, exposed steel bars (such as beam bottom cover spacers), and concrete pouring openings are visible, contrasting with the standardized joint marks of prefabricated houses.

Appearance and Detail Features

Non-prefabricated houses have a more personalized appearance. The choice of exterior wall decoration materials is abundant, including paints, facing bricks, and stones, allowing for flexible combinations of colors and textures. The sizes and positions of door and window openings can be adjusted according to design requirements, whereas in prefabricated houses, these openings are often constrained by the dimensions of prefabricated components. Additionally, the pre-embedding of pipelines in non-prefabricated houses is mostly completed during wall masonry or concrete pouring, resulting in fewer later-stage slot-cutting marks. In contrast, prefabricated houses may have regular cutting seams on walls due to pipeline modifications.

Applicable Scenarios and Advantages

Non-prefabricated houses are suitable for scenarios requiring high structural flexibility, spatial layout, or seismic performance, such as multi-story residences, villas, or buildings on complex terrains. Their advantages lie in their strong structural integrity, enabling better resistance to horizontal loads like earthquakes; high freedom in spatial renovation, allowing for the removal or modification of non-load-bearing walls as needed; and wide adaptability of materials, enabling the selection of economically reasonable building materials based on local resources. However, they have a longer construction period and higher requirements for on-site management.