ABSTRACT：A construction technology for auxiliary installation of limiting devices for vertical components in prefabricated buildings is proposed. This technology utilizes customized fixing plates to secure the steel reinforcement, preventing it from bending or shifting during concrete pouring. Limiting templates are employed to ensure rapid and precise docking of the pre-embedded steel reinforcement and sleeves of prefabricated vertical components, thereby reducing installation errors. Adjustable braces and other means are used to adjust the verticality, elevation, and horizontal position of the vertical components, enabling a more meticulous construction process. High-performance grouting material is used to reliably connect the lower steel reinforcement with the upper components. After curing, temporary supports are removed, which enhances the installation efficiency of vertical components and reduces the onsite working time of workers. Consequently, the shortened construction duration leads to decreased labor costs for installation personnel and management staff, as well as reduced operational costs for machinery and equipment.

Keywords – prefabricated buildings; prefabricated vertical components; limiting device; auxiliary installation; construction technology