2.3 the construction unit shall formulate a special construction scheme according to the characteristics of precast buildings and relevant specifications and standards, carry out construction according to the reviewed construction drawing design documents and approved construction scheme, and do a good job in relevant quality and technical training.

In the whole process of project construction, the construction unit shall bear the comprehensive management and coordination responsibility among all parties of the precast building design, component manufacturing and construction, and take the primary responsibility for the project quality.

2.2.5 the conformity between the detailed drawing of precast components and the design documents of construction drawings shall be verified.

2.1.4 the design unit, construction unit, supervision unit and precast component production unit shall be organized to accept the first batch of precast components.

2.1.2 the construction drawing design documents of precast buildings, the implementation scheme text of precast buildings and their special review opinions shall be submitted to the construction drawing review organization for review in accordance with relevant regulations.

1.2 the precast building mentioned in this key point refers to the reinforced concrete building project or steel structure building project assembled by all or part of the main structure with precast concrete members or steel structure members.

2.1.8 the supervisor and the construction unit shall be coordinated to establish the delivery inspection and mobilization acceptance system of precast components.

Please comply with it.

1.3 this key point is applicable to the construction of precast buildings and related quality supervision and management activities in Hainan Province.

2.2.4 design disclosure shall be made to the supervision, construction and precast component production units on the design content of precast buildings, and participate in the discussion of special construction scheme of precast buildings.

After passing the acceptance, corresponding acceptance records shall be formed before mass production.

2.2.3 the design of structural components and node connection of precast buildings shall be completed to provide basis for component production and meet the finished product protection and installation safety requirements of components during component manufacturing, hoisting and on-site installation.

2.3.2 the production of precast components shall be subcontracted to enterprises with corresponding qualifications..

2.2.7 the characteristics of production, transportation and precast construction of precast components shall be considered in the design of precast buildings.

2.2 the designer shall design according to the mandatory standards for engineering construction, and specify the structural system, prefabrication rate, assembly rate, types and specifications of precast components, connection mode of main structural components, quality and safety guarantee measures of precast buildings in the design documents.

2.1.3 the fabrication of precast components of precast buildings shall be included in the general contracting management of construction, and the contracted project shall not be dismembered, subcontractors shall not be designated, and structural materials, components, parts and components shall not be provided in violation of the contract.

100) and standardize and guide the construction quality supervision of precast buildings in our province, Our department has formulated the key points for construction quality supervision of precast buildings in Hainan Province, which is hereby printed and distributed to you.

And prepare a special part of the design description of precast buildings, and put forward special design requirements for possible major risks.

1.4 the Provincial Department of housing and urban rural development is responsible for the quality supervision and management of precast buildings in the province.

Entrusted by the Provincial Department of housing and urban rural development, the provincial construction project quality and safety supervision administration implements the quality supervision and management of precast buildings.

2.2.6 participate in the quality acceptance before the first batch of precast components, the installation of precast components in the first construction section and the concrete pouring of the first cast standard layer structure.

2 quality responsibility 2.1 the construction unit 2.1.1 shall coordinate the overall work according to the characteristics of the precast building.

The production and processing of precast components are strictly prohibited without verification.

2.2.2 the construction drawing design shall be carried out according to the special review opinions of precast buildings.

Annex: key points for quality supervision of precast building construction in Hainan Province Hainan Provincial Department of housing and urban rural development December 28, 2021 (this document is actively disclosed) key points for quality supervision of precast building construction in Hainan Province 1 General 1.1 to promote the healthy development of precast buildings in our province, standardize and guide the quality supervision of precast building construction in our province, According to the construction law of the people’s Republic of China, regulations on quality management of construction projects, code for acceptance of construction quality of concrete structures (gb50204-2015), evaluation standard for precast buildings (GB / t51129-2017), Hainan standard for acceptance of construction quality of precast concrete structures (djb46-047-2018) and other laws, regulations and standards, and in combination with the actual situation of our province, Develop this key point.

Flat Rubber Recess Former

The detailed design carried out by the construction unit in combination with the construction process and construction organization design can be used for construction only after being confirmed by the design unit.

2.1.5 the design unit, construction unit and supervision unit shall be organized to conduct acceptance after the installation of precast components in the first construction section.

Housing and urban rural development bureaus of cities, counties and autonomous counties, planning and Construction Land Bureau of Yangpu Economic Development Zone and relevant units: to implement the requirements of the implementation opinions of Hainan Provincial People’s Government on vigorously developing precast buildings (qiongfu [2017] No.

2.1.7 to implement the factory supervision system for the production of precast components, the construction unit shall organize the supervision unit to conduct factory supervision on the production process of precast components.

2.1.6 before the concrete pouring of the first cast standard floor structure, the construction unit shall organize the design, supervision, construction, component production units and other parties involved in the construction to carry out project acceptance, focus on the installation of precast components and connecting nodes, the installation of finalized cast formwork, etc., and keep the acceptance records and image data.

The competent departments of housing and urban rural development of the local people’s governments at or above the county level and their subordinate quality and safety supervision institutions shall be specifically responsible for the quality supervision and management of precast buildings within their respective administrative areas.

After passing the acceptance, corresponding acceptance records shall be formed before subsequent construction.

When the construction drawing design documents have major changes related to its structural safety, prefabrication rate, assembly rate, use function, etc., it shall be submitted to the original review organization for re review.