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Anonymous users2024-02-06Standards and specifications for the acceptance of building curtain walls: 1. The specifications and models of aluminum alloy profiles for concealed frame glass curtain walls must meet the design requirements and relevant national standards. The structural adhesive and weather-resistant adhesive used for concealed frame glass curtain wall must be compatible with the materials of the bonding and contact parts; Structural adhesives must be within the storage shelf life.
Quality Inspection Standard for Glass Curtain Wall Engineering (JGJ T 139-2001;j139-2001）。Technical Specifications for Metal Stone Curtain Wall Engineering. The National Standard of the People's Republic of China GB T 21086-2007 "Building Curtain Walls".
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Anonymous users2024-02-05The acceptance standard of glass curtain wall is very important, and the formulation of the standard is very important for better acceptance and personal safety of users. Zhongda Consulting will explain to you the acceptance criteria for glass curtain walls.
1. Safety glass should be used for the curtain wall, and the variety, specification, color, optical performance and installation direction of the glass should meet the design requirements.
2. The thickness of the curtain wall glass should not be less than. The thickness of the all-glass curtain wall ribbed glass should not be less than 12mm.
3. The insulating glass of the curtain wall should be sealed with double channels. The insulating glass of the exposed frame curtain wall should be made of polysulfide sealant and butyl sealant; The insulating glass of the concealed frame and semi-concealed frame curtain wall shall be made of silicone structural sealant and butyl sealant; The coating side should be on the 2nd or 3rd side of the insulating glass.
4. The laminated glass of the curtain wall should be processed by polyvinyl butyral (PVB) film dry processing laminated glass. The thickness of the point support glass curtain wall laminated film (PVB) should not be less than.
5. There shall be no damage to the surface of the tempered glass; The following tempered glass should be detonated.
6. All curtain wall glass should be edge-treated.
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Anonymous users2024-02-04What is the acceptance specification of glass curtain wall? Today, I will answer them one by one for you. Ziqing.
1. The specifications and models of aluminum alloy profiles for glass curtain walls must meet the design requirements and relevant national standards. The structural adhesive and weather-resistant adhesive used for glass curtain wall must be compatible with the materials of the bonding and contact parts; Structural adhesives must be within the storage shelf life.
2. The color and color of the glass used in the glass curtain wall must meet the design requirements, and the quality should meet the current national standards. The adhesion and service life of the coating layer of coated glass must be reliable, and the coating layer must be on the indoor side during installation. Use other special glass, and the installation orientation should not be correct.
3. The metal parts used in the glass curtain wall, among which the fasteners in contact with the aluminum alloy components must be stainless steel parts, and the rest should be treated with anti-rust, and the parts connected by bolts and self-tapping nails should be added with organic heat-resistant and wear-resistant gaskets. There should be anti-chemical measures between different metal materials.
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Anonymous users2024-02-03On-site inspection of materials General provisions For on-site inspection of materials, materials of the same model, specification and batch number produced by the same manufacturer shall be used as an inspection batch, and 3% of each batch shall be randomly selected and shall not be less than 5 pieces. The inspection record shall be carried out in accordance with the record sheet in Appendix A of this standard. In addition to the provisions of this standard, the materials used in the glass curtain wall project should also comply with the provisions of the current national product standards.
Aluminum alloy profiles The aluminum alloy profiles used in the glass curtain wall project should be inspected for wall thickness, film thickness, hardness and surface quality. The measured value of the wall thickness of the aluminum alloy profile used for the cross-sectional stress part of the main stressed members such as beams and columns shall not be less than 3mm. For the inspection of wall thickness, a vernier caliper with a resolution of mm or a metal thickness gauge with a resolution of mm should be used to measure different parts of the same section of the rod, and the number of measuring points should not be less than 5, and the minimum value should be taken.
The test index of the film thickness of aluminum alloy profiles shall comply with the following provisions: 1. The minimum average film thickness of anodized film should not be less than 15 m, and the minimum local film thickness should not be less than 12 m. 2 The average thickness of the powder electrostatic spraying coating should not be less than 60 m, and its local thickness should not be greater than 120 m and should not be less than 40 m
3. The local film thickness of the electrophoretic coating composite film should not be less than 21 m4. The average thickness of fluorocarbon spraying coating should not be less than 30 m, and the minimum local thickness should not be less than 25 mTo test the film thickness, a film thickness detector with a resolution should be used to detect it.
There should be no less than 5 measuring points in different parts of the decorative surface of each member, and the same measuring point should be measured 5 times, and the average value should be taken and revised to an integer. The Wechsler hardness value of the 6063T5 profile used in the glass curtain wall project shall not be less than 8, and the Wechsler hardness value of the 6063AT5 profile shall not be less than 10. For the hardness test, the surface hardness of the profile should be measured by the Wechsler hardness tester.
The coating on the surface of the luxury should be cleaned, and the number of measurement points should not be less than 3, and the average value of at least 3 points should be taken and revised to a unit value. The surface quality of aluminum alloy profiles shall comply with the following regulations: 1. The surface of the profile should be clean and the color should be uniform.
2. There should be no wrinkles, cracks, peeling, corrosion spots, bubbles, electrical burns, flow marks, stickiness and film (coating) layer peeling on the surface of the profile. The inspection of surface quality should be observed and inspected under natural astigmatism conditions without the use of a magnifying glass. The above is the relevant content of the quality acceptance specifications and standards for glass curtain wall projects.
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Anonymous users2024-02-02What are the management regulations for the acceptance of glass curtain wall projects? The following Zhongda Consulting will give you a detailed introduction.
1. After the installation of the curtain wall project, the project acceptance should be carried out, and the acceptance should be carried out after the completion of the building (excluding the secondary decoration), and the surface should be scrubbed clean before acceptance.
2. The contractor shall submit the following information during the acceptance of the curtain wall:
1) Design documents, design modifications and material substitution documents;
2) Material factory certificate, profile test report, adhesion test report of compatibility between structural adhesive and contact material;
3) Factory certificate of workpiece;
4) Cover the project acceptance documents;
5) Construction and installation self-inspection records;
6) Under normal circumstances, the quality assurance certificate of physical service life.
3. The visual inspection of the curtain wall project shall be carried out according to the following requirements:
1) The frame material of the exposed frame curtain wall should be vertical and horizontal, and the unit joint of the unit curtain wall or the lattice glass joint of the hidden frame curtain wall should be vertical and horizontal.
2) The variety, specification and color of the glass should be consistent with the design, and the color of the whole curtain wall glass should be basically uniform, and there should be no alkali separation, mildew and coating peeling.
3) The installation direction of the glass should be correct, and the side of the coated glass should be facing the room.
4) The wall glass should be flat, and the image of the outdoor scenery reflected on the outer side of the curtain wall should not be distorted due to the installation and construction quality.
5) The pigment of the aluminum alloy should be consistent with the design, the color should be basically uniform, and there should be no phenomenon such as coating falling off.
6) The aluminum alloy decorative bead seat is flat, and there are no defects such as deformation, wrinkles or local pressure smashing that can be detected by the naked eye.
7) The concealment and decoration of hidden nodes should be neat and beautiful.
8) The curtain wall shall not leak. The curtain wall should not make a sound when it is deformed.
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