2025-01-09    244

　　Prefabricated buildings refer to a construction method where a significant portion of traditional onsite construction activities are shifted to factories. In these factories, building components and parts (such as floors, walls, stairs, balconies, etc.) are processed. These prefabricated components are then transported to the construction site and assembled and installed on-site using reliable connection methods. Prefabricated buildings primarily include precast concrete structures, steel structures, and modern wooden structures. They adopt standardized design, factory production, assembly-based construction, information management, and intelligent applications, representing modern industrialized production methods. In recent years, guided by relevant policies, prefabricated buildings have ushered in a golden period of development.

　　After being produced and processed in the factory, the components of prefabricated buildings arrive at the construction site, reducing the amount of wet work required onsite. In this project, prefabricated exterior wall panels are used around the perimeter, minimizing the need for assembling conventional scaffolding. Overlapping floors are used, reducing the use of some forms and supports.

　　Traditional cast-in-situ high-rise shear wall structures typically utilize scaffolding such as suspended scaffolding and climbing scaffolds. Suspended scaffolding requires steel beams to be extended outward from the floors, with scaffolding installed upwards from the top of these beams and fixed to the main structure. Holes are drilled in the shear walls for the installation of climbing equipment, which is widely used in high-rise construction projects. External climbing scaffolding relies on the structural exterior walls and adapts as the project progresses to meet construction demands. Suspended scaffolding uses a large amount of components such as steel pipes, and the holes drilled in the shear walls pose a significant risk of water leakage in the later stages. Climbing scaffolds are more economical for high-rise projects but are less meaningful for structures around ten stories tall.

　　Prefabricated buildings, in combination with prefabricated exterior walls, utilize plug-in tripods for construction. These tripods can be reused between two floors, minimizing the assembly of plugs and reducing costs. The reuse rate of these tripods exceeds 75%.