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Anonymous users2024-01-23Mainly considering that the strength of bricks, friendly slag blocks and ash joints in the masonry is low, it is easy to break by impact, and it is not enough to meet the requirements of long-term firm fixing of doors and windows, so it is stipulated that it is strictly forbidden to shoot nails when installing doors and windows on masonry.
Of course, there is too much difference in the physical properties of door and window materials and masonry materials, and the thermal expansion and cold contraction force will lead to the bending of steel nails or the deformation of doors and windows; The high strength of the nails is obtained by changing the material and cold working means, the cold worked steel is not resistant to rust, and the life of the brick wall is very long, and the life of the two is too mismatched.
Many of the above reasons require that doors and windows are installed on the masonry, and it is strictly forbidden to fix them with nails.
The new requirements are that concrete structural columns are used on both sides of the door and window openings, and the doors and windows are installed on the concrete structural columns and shall not be fixed with nails.
The form presented by the topic can only be used as the original record draft of the self-inspection of the project (masonry sub-item of a project in Huafa Garden), and cannot be used as the official form of the inspection and inspection record of the masonry project or the quality acceptance record of the inspection batch of the masonry project of the filling wall to the supervision department. The inspection batch quality acceptance record shall be unified in accordance with the format specified in the GB50203-2011 "Masonry Engineering Construction Quality Acceptance Code".
Find the relevant form, how to ask how to inspect, but the "three sexes" test of aluminum alloy and plastic steel doors and windows should be sent to the authority for testing.
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