Before the construction of prefabricated concrete structures, the construction unit should conduct quality and safety technical briefings for technicians and on-site workers. Select appropriate lifting machinery and equipment based on the project characteristics, construction schedule, component types and weights. All lifting machinery and equipment should have special equipment manufacturing licenses and product certificates.
1. Before the formal construction of the prefabricated structure, representative units or components should be selected for trial production and trial installation of prefabricated components. The construction plan should be adjusted and improved in a timely manner based on the test results, and the cyclic construction steps of unit construction should be determined.
2. Before hoisting the components, the detailed drawings of the component assembly and connection structures should be checked, including the assembly positions of the components, the detailed structure of the node connections, and the temporary support design calculation and verification.
3. Before assembly and construction, the quality of the completed cast-in-place structure should be checked as required, and the prefabricated components and the constructed cast-in-place structure should be measured and laid out according to the design drawings, and installation positioning marks should be made. .
4. Prefabricated components, installation materials and accessories should be inspected on site in accordance with standards. Uninspected or unqualified products shall not be used.
5. Hoisting equipment should meet the requirements for hoisting weight and operating radius of prefabricated components, and its safety must meet construction requirements when entering the site for assembly and debugging.
6. Reasonably plan component transportation channels and storage sites, set up necessary on-site temporary storage racks, and formulate protection measures for finished products.
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