Yuncheng Prefabricated Assembly House
Yuncheng prefabricated assembly houses are primarily based on a concrete structural system, constructed through factory-prefabricated components and on-site assembly, adhering to strict technical standards and policy requirements. The following provides an in-depth explanation from five perspectives: policy standards, technical specifications, engineering practices, technological innovations, and corporate participation.
In terms of policy standards, the Yuncheng prefabricated assembly house project strictly follows the 'Implementation Plan for Accelerating the Development of Prefabricated Buildings in Yuncheng City' and the '2025 Action Plan for the Prefabricated Building Industry Chain in Shanxi Province'. Specific requirements include: a minimum assembly rate of 60% for individual buildings, with the application ratio of prefabricated horizontal components needing to reach over 70%, the non-masonry ratio of non-load-bearing enclosure walls not less than 80%, and the non-masonry ratio of interior partition walls not less than 50%. Residential buildings must be fully furnished upon delivery, with the application ratio of integrated kitchens and bathrooms not less than 70%, and the application ratio of pipeline separation technology not less than 50%. The project adopts a concrete structural system, utilizes BIM technology for full-process management, and promotes the Engineering Procurement Construction (EPC) model.
Regarding technical specifications, the project adheres to Shanxi Province's 'Evaluation Standard for Prefabricated Buildings' (DBJ04/T396-2019), the 'Code for Acceptance of Construction Quality of Concrete Structures' (GB50204-2015), and the 'Technical Standard for Prefabricated Concrete Buildings' (GB/T51231-2016), ensuring that component production, transportation, installation, and other processes comply with national standards.
In terms of engineering practices, taking a project in Yanhu District, Yuncheng City as an example, it has a total construction area of 52,000 square meters, with 18 floors above ground adopting a shear wall structure and a prefabricated concrete system. Prefabricated components include exterior wall panels (sandwich insulation panels), composite floor slabs, prefabricated stairs, and interior partition wall panels, with an assembly rate of 65%. Component specifications are clear, such as the prefabricated exterior wall panels measuring 2800×6000×200mm, weighing 5.2 tons each, with a total of 320 pieces.
Regarding technological innovations, component production employs high-precision molds (with a deviation of ≤2mm), steam curing (at 60±5℃ for ≥8 hours), and automated production lines. Transportation utilizes customized low-bed trailers for vertical transportation of wall panels. On-site assembly achieves steel bar anchoring through sleeve grouting technology, combines three-dimensional laser scanning to verify component positions, and utilizes BIM technology to construct a digital twin, driving intelligent factory processing.
In terms of corporate participation, Shanxi Kelindi Integrated Housing Co., Ltd. specializes in the design and manufacturing of prefabricated villas, with products having a service life of 70 years and an earthquake resistance of magnitude 8. Shanxi Limei Prefabricated Housing Co., Ltd., established in 2021, covers the manufacturing, sales, installation, and leasing of prefabricated buildings, promoting the transformation and upgrading of local construction labor services.
