1. The design and use of the prefabricated component should be the same as the main structure of the main body.
2. Calculate the design calculation of the bearing capacity limit state and the normal use limit of the prefabricated component.
3. The design calculation of the prefabricated component should consider the load combination of all working conditions from component production, transportation, code release, and installation until the structure installation is completed.
4. The outer wall plate can be divided into load -bearing outer wall boards and non -loading outer wall boards according to its role in the main structure. The load -bearing outer wall board should meet the following requirements:
1) The load -bearing outer wall board should be used as a structural component, and the role of gravity load, wind load and earthquake with other structural components should be jointly assumed with other structural components.
2) When the sandwich insulation outer wall plate is used as a load -bearing outer wall plate, its inner lobe wall should be used as a structural component to participate in the co -working work of the structure; The connecting parts between the boards hang on the load on the inner lobe wall.
3) The design calculation of the inner wall of the load -bearing wall plate, including the load -bearing sandwich insulation outer wall plate, and the connection and seam calculation with the main structure, etc., should meet the requirements of Chapter 8 of this regulation.
4) For composite wall plates that are connected to the inner and outer concrete plates with trustee steel or concrete ribs, the combination of combined section of the combined section of the two -layer concrete plate formed by the inner and outer two layers of concrete plate should be calculated.
5. The prefabricated component shall meet the following structure requirements:
1) The minimum anchor length and overlapping length of the longitudinal reinforcement should meet the requirements of the "Specification of the Concrete Structural Design". When welding joints are adopted, the type and quality of the joints shall meet the relevant national standards.
2) Prefabricated cantilever components, such as prefabricated balcony, negative curved torque steel bars should be strengthened in the cast layer. The anchor length of the negative curved torque reinforcement should not be less than 1.5 times the length of the cantilever of the cantilever.
3) The connection structure of the prefabricated staircase and the supporting component should meet the requirements of equivalent to the concrete of equivalent to the concrete. When the above requirements cannot be met, the connection between the prefabricated stairs and the supporting components should be hinged with a minimalist hinge, and the displacement space is left.
