Standardized design refers to the design phase, which is aimed at universal products, adopts common conditions, formulates unified standards and models, and carries out a relatively wide range of applicable designs. It is suitable for product designs that are technically mature, economically reasonable, and have sufficient market capacity. The advantages of using standardized design are: ① ensuring design quality, which is conducive to improving engineering quality; ② Can reduce repetitive labor and accelerate design speed; ③ Beneficial for adopting and promoting new technologies; ④ Facilitate the industrialization, assembly, and construction mechanization of component production, improve labor productivity, and accelerate construction progress; ⑤ Beneficial for saving construction materials, reducing project costs, and improving economic benefits..

The integrated design of building structural systems, peripheral protection systems, equipment and pipeline systems, and interior systems is called integrated design. Prefabricated buildings emphasize integrated design, and in the design process, the structural system, peripheral protection system, equipment and pipeline system, and interior system should be comprehensively considered for integrated design. Systematicity and integration are the basic characteristics of prefabricated buildings. Prefabricated buildings are based on complete building products, providing high-performance complete building products. Through the method of system integration, the entire process of design, production, transportation, construction installation, and maintenance is integrated. In prefabricated building design, the design and application of integrated systems have become a development trend. The centralized design of equipment and electrical pipes has advantages over traditional methods. In residential systems, separating long-lived structural systems from short-lived equipment pipeline systems and integrating equipment pipeline wells into public spaces is also a rational trend in residential design, providing the possibility of extending building life through pipeline updates throughout the entire lifecycle of the building. The notice on issuing the “Key Points for Quality and Safety Supervision of Prefabricated Building Construction in Zhejiang Province” aims to promote the high-quality development of new building industrialization in the province, strengthen refined management, improve management systems, and enhance quality and safety. According to the Action Plan for Improving the Development Quality of New Building Industrialization in Zhejiang Province (2023-2027), our department has organized the preparation of the Key Points for Quality and Safety Supervision of Assembled Decoration Projects in Zhejiang Province, which are now issued for reference and implementation by various regions based on their actual situation..

This key point is managed by the Department of Housing and Urban Rural Development of Zhejiang Province, and the technical content is explained by the Hangzhou Construction Engineering Quality and Safety Supervision Station, which is publicly available on our department’s website..

Attachment: (Click on “Read Original Text” in the bottom left corner to download) “Key Points for Quality and Safety Supervision of Assembled Decoration Projects in Zhejiang Province”. pdf.

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Recently, the Department of Housing and Urban Rural Development of Zhejiang Province issued a notice on the issuance of the “Key Points for Quality and Safety Supervision of Prefabricated Building Construction in Zhejiang Province” (Zhejian Guanfa [2024] No. 71)..

The main contents of this supervision include: 1. General provisions; 2. Terminology; 3. Quality and safety behavior supervision; 4. Quality supervision of prefabricated construction projects; 5. Safety supervision of prefabricated construction projects; 6. Green construction of prefabricated buildings and occupational health; 7. Information management of prefabricated buildings..

This supervision point applies to the quality and safety supervision work related to the construction, renovation, and expansion of prefabricated buildings within the administrative region of Zhejiang Province. Mainly targeting construction projects that use two common structures, prefabricated concrete structure and prefabricated steel structure, for the upper main structure. Supervision agencies at all levels may conduct supervision, spot checks, and testing on several items in this key point of supervision based on actual circumstances..

The document specifies the quality and safety behavior regulations and sampling methods for construction units, construction units, design units, and supervision units..