The following is to introduce the engineering technical requirements of cast iron guardrail:
1. The material, specification, quantity and combustion performance grade of materials used in the production and installation of railings shall meet the specifications and design requirements.
2. Before the construction of railings, samples shall be made, and all types of construction samples shall be completed. After the inspection of Party A's supervisor, large-scale production and installation can be carried out.
3d捕鱼3。 Each batch of materials entering the site can be installed only after being accepted by the supervisor of Party A。 meanwhile, the raw material qualification certificate, re inspection report and relevant test report shall be provided。
4. The height, spacing, thickness and installation position of the guardrail must meet the specifications and design requirements.
5。 The embedded board of railings shall be fixed on the structural layer, and the finished surface after the expansion bolt is fixed shall be lower than the plastering layer or leveling layer, so as to ensure that the surface construction will not be affected。
6. The embedded parts or post embedded parts, connection nodes and lightning protection connection nodes must pass the acceptance of concealed works and form concealed acceptance records, and then they can be concealed.