ã€China Aluminum Industry Network】 1. Design Coordination 1. Without prior coordination, window sash opening conflicts with water pipes, and it cannot be fully opened, affecting the use of functions.
Precautions:
1) Doors and windows (including reserved doors and windows in structural construction) should be well designed and cross-professional design coordination before large-area construction, eliminating design conflicts;
2) In the early stage of construction, the model house shall be completed first, physical coordination shall be carried out for the designs of different specialties, and it shall be approved by all parties at the end to ensure that the design is practicable.
2. Without prior coordination, window sash opening conflicts with outdoor and indoor decoration lines, and it cannot be fully opened due to obstructions. This affects the use of functions.
Precautions:
Doors and windows (including reserved openings for doors and windows in the construction of structures) should be designed and coordinated with cross-professional design before large-area construction and eliminate design conflicts; key points are as follows:
1) Before the construction of the structure, the hole size, size, elevation, positioning (including vertical cross-layer) shall be reserved; the elimination of windows and structural members of the main body of the force conflict, such as the gap between the main beam and the window top of the window is too small ;
2) Eliminate the conflict between windows and future finishes (outdoor and indoor);
3) Coordinate mechanical and electrical equipment, such as pre-embedded lightning protection grounding metal sheets, pipe positioning, etc.
3. There is a conflict between the window handle and the guardrail, which is not conducive to the daily use of the owner; the height of the guardrail is less than the specification.
4. The net height of the window sill outside the floor is less than 900mm, but no guard rails are provided and does not meet the design requirements.
Second, the pre-installation processing 1, aluminum alloy doors and windows unfolding assembly, the relevant approval has not been confirmed, there is no basis for assembly and processing.
Prior to the start of in-plant assembly, relevant approvals were not completed:
1) Approval of drawings and calculations;
2) Material approval and model submission;
3) Performance test report.
Note: The aluminum alloy doors and windows shall be subject to examination and approval according to the national standard, design and contract requirements. They shall have the following key information, and shall be confirmed by the design unit and the supervision and approval authority, and be reserved for the future entry acceptance comparison benchmark:
1) deepen the drawings;
2) The structural calculation document proves that it meets the local physical properties, mechanical properties, and functional specifications;
3) Qualified documents for specification and strength of aluminum alloy profiles to ensure compliance with the regulations;
4) The performance test report meets specifications, design and contract requirements (including wind pressure resistance, water tightness, air tightness, air sound insulation performance, heat insulation performance, shading performance, daylighting performance, opening and closing force, repeated opening and closing performance, etc.) Wait).
2. There are obvious defects in the semi-finished products of aluminum alloy doors and windows, reflecting that the quality of assembly and processing in the factory is not up to standard.
Note: The first batch of assembled semi-finished products should be strictly accepted, and the defects in the processing must be specified in detail so that they can be corrected in the early stage of assembly to prevent duplication of defects and expansion; if necessary, the semi-finished products can be paid In-factory sampling inspection before transport to prevent time-consuming transport.
3, aluminum alloy doors and windows semi-finished products stacked chaos, and did not padded storage, does not meet the requirements of the specification, and damage, deformation and other defects.
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