Establish corresponding working system, organize all parties involved in the project to carry out the first piece acceptance of precast concrete component production and the first section acceptance of on-site installation, and carry out mass production or subsequent construction only after passing the acceptance.

The construction unit shall: Code for safety production management of site construction (dgj08-903-2010), passed the external review of the safety production management system.

According to the construction characteristics of precast buildings, the cost of safe production and civilized construction measures shall be fully allocated.

Focus on strengthening random inspection and supervision of project entity parts and construction behaviors related to project structure safety, use function and environmental impact.

Supervision unit: the supervision unit shall strictly review the approval and expert demonstration of the special construction scheme, prepare operable supervision implementation rules according to the special scheme, clarify the requirements for key links, key parts and on-site inspection of supervision, and the on-site inspection of key links and key parts shall retain image data.

(now some prefabrication yards do detailed design for the approval of the designer) the designer shall fully consider the factors such as component lifting points, tower cranes, wall attached embedded parts of construction machinery, scaffold tie-in with the construction unit to facilitate component production and subsequent construction, and put forward measures to ensure quality and safety during construction (including checking the bearing capacity of the component stacking site) the design unit shall provide on-site service and appoint a special person as the person in charge of on-site service.

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The subcontractor shall obey the overall construction scheduling arrangement of the general contractor, especially the hoisting subcontractor shall strengthen coordination and cooperation with other subcontractors.

The operators engaged in the hoisting of precast components on site shall hold the certificate of special type of work for high-altitude operation of building construction.

When the on-site supervision is implemented for the production of precast components, the supervision unit shall earnestly perform the relevant supervision responsibilities, implement the acceptance of raw materials, testing, concealed works and inspection lot acceptance, and prepare the on-site supervision evaluation report.

If supervision institutions at all levels find that there are defects in quality and safety production conditions in key links such as scheme preparation and approval, stacking, lightering and hoisting of precast components, on-site protection and component connection, structural waterproof and waterproof construction, they shall immediately order local suspension of construction for rectification, stop work for rectification if necessary, and deal with relevant responsible units and individuals according to law..

In the construction drawing design document, the structural type, precast assembly rate, precast component parts, types of precast components, structural practices between precast components and between precast components and main casting shall be specified, and a special chapter of structural design description shall be prepared.

The components leaving the factory shall provide complete component quality certificates.

When the construction drawing design document involves important changes related to structural safety and use function, it shall be submitted to the original review organization for re review.

Relevant government supervision institutions: supervision institutions at all levels shall carry out relevant supervision work according to the project quality and safety According to the supervision requirements, the supervision work shall be carried out effectively according to the particularity of the construction of assembled integral concrete structure.

Designer: the construction drawing design documents shall strictly comply with the provisions on the preparation depth of cast architectural design documents.

If the construction project is supervised, the construction unit shall entrust the supervision unit to supervise the production link of precast concrete components and pay the corresponding supervision expenses.

For the special construction operation platform for precast buildings with new materials, new equipment and new processes, and the protective facilities for high-altitude and edge operations, the special scheme shall be demonstrated by experts according to the regulations The general contractor shall specify the responsibility limit of the general contractor and the subcontractor in the subcontract for the links of cross construction, so as to effectively implement the safety responsibility; Coordinate and urge subcontractors to cooperate with each other to effectively implement the contents of construction organization design and special scheme.

Coordinate the construction progress and work cooperation of all parties involved in design, construction general contracting, supervision and component production.

(including acceptance, maintenance and out of tank strength of concealed works) the production unit shall mark the precast components that pass the inspection, and the components with incomplete marks shall not leave the factory.

The construction general contractor shall prepare and strictly implement the measures for safe production and civilized construction according to the characteristics of component storage yard setting, equipment and facilities installation and use, discontinuous construction caused by hoisting, etc.

responsibilities and obligations of main participating units: construction unit: send the design documents of precast building construction drawings to the review organization for review.

The production unit shall actively cooperate with the supervision unit to carry out relevant supervision work.

In the construction preparation stage of the project, the program approval and demonstration procedures shall be focused on spot check; During the project construction stage, spot check shall be focused on the on-site safety protection, the shift leadership of the person in charge and the employment of the operators with certificates, so as to supervise and urge the implementation of the quality and safety responsibilities of all parties.

Strengthen the quality control during the production of precast components, and strengthen the inspection of raw materials, concrete strength, connectors and component performance according to specifications and standards.

Put forward special design requirements for possible major risks.

The key points of the site supervisor’s daily on-site inspection shall include the preparation work of the construction unit before hoisting, the arrival of management personnel during hoisting, the employment of operators with certificates, the duty performance of hoisting supervisors, the protective measures for edge operation and the implementation of relevant auxiliary facilities, etc.

Fixing Socket Angular End

Production unit of precast components: the processing drawing design of precast components shall be reviewed and confirmed by the original construction drawing design unit.

The construction unit shall vigorously promote the application of BIM Technology to meet the relevant requirements of process, process, facilities and equipment for quality and safety.

When there are important changes related to structural safety and use function, the design unit shall strictly control them and remind the construction unit to send the modification documents to the original review organization for review.

Prepare the production plan of precast components, clarify the quality assurance measures, and implement it only after completing the approval procedures as required.

The special quality and safety scheme for the construction of precast buildings shall be prepared in time, and the approval procedures shall be performed according to the regulations.