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Engineering Construction Standard Full-text Information System
UDC 691.771. 028
National Standard of the People's Republic of China
GB8481—87
Sliding Aluminum Alloy Windows
Aluminum Alloy Sliding Windows
Published on December 23, 1987
Implemented on July 1, 1988
Published by the Ministry of Urban and Rural Construction and Environmental Protection of the People's Republic of ChinaW.bzsoso.coD Engineering Construction Standard Full-text Information System
National Standard of the People's Republic of China
Sliding Aluminum Alloy Windows
Aluminum Alloy Sliding Windows
Subject Content and Scope of Application
UDC691.771.028
GB 8481—87
This standard specifies the varieties, specifications, technical performance, quality grades and inspection rules of sliding aluminum alloy windows. This standard applies to sliding aluminum alloy windows for construction (hereinafter referred to as windows), code-named TLC. This standard also applies to sliding aluminum alloy windows with screen fans, code-named ATLC. 2 Reference standards
GB1804
GB5237
GB5823
GB5824
GB6388
GB7106
GB7107
GB7108
GB8484
GB8485
3 Varieties and specifications
Packaging, storage and transportation, graphic symbols
Tolerances and fits Limit deviations of dimensions without tolerances Aluminum alloy building profiles|| tt||Terms for building doors and windows
Size series of building door and window openings
Marks for shipping and receiving packages
Classification and detection methods for wind pressure resistance of building exterior windowsClassification and detection methods for air leakage of building exterior windowsClassification and detection methods for rain leakage of building exterior windowsClassification and detection methods for thermal insulation of building exterior windowsClassification and detection methods for airborne sound insulation of building exterior windows3.1 Basic size series of window thickness
3.1.1 The basic size of window thickness is distinguished by the thickness of the window frame, see Table 1. Table 1
Basic size series of window thickness, mm
3.1.2 If the thickness of the window size series is not listed, it can be close to the basic size series within ±2mm relative to the basic size series. 3.2 Window opening size series
3.2.1 The width and height structural dimensions of the window are mainly determined according to the thickness structural dimensions of the window frame and the opening installation requirements. 3.2.2 The specifications of basic window openings are shown in Table 2. 3.2.3 Except as specified in Table 2, any combination of windows is allowed, and the size of the opening after the combination shall comply with the provisions of GB5824. 3.3 Classification by performance
3.3.1 According to the use requirements of different buildings, the products are divided into three categories: A, B, and C according to the three performance indicators of wind pressure strength, air infiltration and rainwater leakage, as shown in Table 10.
3.3.2 Products are classified according to airborne sound insulation performance. Any window with airborne sound weighted sound insulation ≥ 25dB is a soundproof window, as shown in Table 11. Approved by the Ministry of Urban and Rural Construction and Environmental Protection of the People's Republic of China on December 23, 1987 and implemented on July 1, 1988
Engineering Construction Standard Full Text Information System
3.3.3 Products are classified according to thermal insulation performance. Any window with a heat transfer resistance of 0.25m2·K/W is a thermal insulation window (see Table 12). Table 2Www.bzxZ.net
Hole height, mm
3.4 According to the surface treatment method
Anodizing method;
Anodizing and coating method.
3.5 Marking examples
Example 1: TLC60-3012-2000·1.5·250·250.25-ITLC
Sliding aluminum alloy window;
Basic dimension of window thickness is 60mm;
Opening width is 3000mm, opening height is 1200mm; wind pressure strength performance value is 2000Pa;
Air permeability performance value is 1.5m/m·h;
-Rainwater leakage performance value is 250Pa;
Air sound weighted sound insulation value is 25dB;
-Thermal resistance value is 0.25m2K/W
-The thickness of anodized film is Level II.
Example 2: TLC70-1509-2500·1.5·0.25-TITLC——sliding aluminum alloy window;
70——the basic dimension of window thickness is 70mm; model
surface treatment level
heat transfer resistance value
air sound weighted sound insulation value
rainwater leakage performance value
air permeability performance value
wind pressure strength performance value
opening model
basic dimension of window thickness
window code
W. 3000
Engineering Construction Standard Full Text Information System
Hole opening height is 1500mm, hole opening height is 900mm;-Wind pressure strength performance value is 2500Pa;
1.5-Air permeability performance value is 1.5m/m·h; 0 means no requirement for rainwater leakage performance;
-Air sound weighted sound insulation value is 25dB;
No requirement for thermal insulation performance;
TI—Anodized coating film thickness is TI grade Note: When marking on the product, the performance and film thickness markings can be omitted. 4 Technical requirements
4.1 Materials
4.1.1 Window materials and accessories shall comply with the current national standards, professional standards or departmental standards, refer to Appendix A (reference). 4.1.2 Except for stainless steel, the selected accessory materials shall be treated with anti-corrosion and contact corrosion with aluminum alloy profiles is not allowed. 4.2 Surface treatment
4.2.1 The thickness of the anodic oxide film on the surface of aluminum alloy profiles is classified as shown in Table 3. Table 3
The thickness of the anodic oxide film ≥, um
2 The thickness of the anodic oxide coating on the surface of aluminum alloy profiles is classified as shown in Table 4.4.2.2
The thickness of the anodic oxide coating is ≥, um
Note: The thickness of the anodic oxide coating refers to the thickness of the coating after anodizing. 4.3 Assembly requirements
See Table 5 for the requirements of the window frame size deviation.
Allowable deviation of width and height of window frame notch
Difference of opposite side dimensions of window frame notch
Difference of diagonal dimensions of window frame notch
≤2000
≤2000
Excellent product
2 Requirements for assembly clearance of adjacent components of window frame and sash and height difference in the same plane are shown in Table 6. Equal
Qualified product
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Height difference in the same plane《
Assembly clearance≤
Excellent product
First-class product
The connection of window components should be firm, and corrosion-resistant filling materials should be used to make the connection parts sealed and waterproof. 4.3.4
The window structure should have reliable rigidity, and reinforcement parts can be set as needed. The window frame and sash should be closely matched and the clearance should be uniform. The overlap width between the sash and the frame is allowed to deviate by ±1mm. Qualified products
Window accessories are installed in the correct, complete and firm position, should play their respective roles, have sufficient strength, be flexible to open and close, and be noiseless. Accessories that are subjected to repeated movements should be easy to replace in terms of structure. 4.3.7
The quality of window glass, hardware, seals and other accessories should be consistent with the quality grade of the window. 4.3.8
Matching of window glass groove and glass
The matching dimensions and names of flat glass and window glass groove are shown in Figure 1 and Table 7. Figure 1
a—Net width of inlay opening; b—Inlay depth; c—Gap of inlay groove Table 7
Glass thickness
Note: When the width of the glass groove is <9mm, the net width of the glass inlay opening should be ≥2mm. 5
Wmm
Engineering Construction Standard Full Text Information System
4.3.8.2 The matching dimensions and names of insulating glass and window glass grooves are shown in Figure 2 and Table 8. Figure 2
a—Net width of the inlay opening; b—Inlay depth; c—Inlay groove gap; A—Thickness of air layer Table 8
Insulating glass
Glass+A+Glass
Note: A=6~12mm.
4.3.9 After assembly, the gap between the glass and the inlay groove should be ensured, and shock-absorbing pads should be installed in the main parts to buffer the impact of opening and closing forces. 4.3.10 The maximum allowable area of flat glass for windows should be determined by calculation. Note: When there is no practical data in my country's glass standards, you can refer to Appendix B (reference). 4.3.11 Dimensions without tolerance notes should comply with the tolerance grade JS15 (js15) specified in GB1804. 4.4 Surface quality
4.4.1 The window decoration surface should not have obvious damage. The provisions for local abrasions and scratches on each window are shown in Table 9. Table 9
Superior products
Deepness of abrasions and scratches
Total area of abrasions ≤, mm2
Total length of scratches <, mm
Number of abrasions or scratches
Not more than the thickness of the oxide film
4.4.2 There should be no obvious color difference on the colored surfaces of adjacent components on the window. Excellent products
Qualified products
Not more than 2 times the thickness of the oxide film
Not more than 3 times the thickness of the oxide film
Engineering Construction Standard Full Text Information System
4.4.3 There should be no aluminum chips, burrs, oil spots or other stains on the window surface, and there should be no overflow of adhesive at the assembly joints. 4.5 Performance
4.5.1 Wind pressure strength, air infiltration and rainwater leakage performance are shown in Table 10. The airborne sound insulation performance classification values of soundproof windows are shown in Table 11. 4.5.2
4.5.3 The thermal insulation performance classification values of thermal insulation windows are shown in Table 12. 4.5.4 Opening and closing performance
The opening and closing force should not be greater than 50N.
Sliding aluminum alloy window
Comprehensive performance index value
(High performance window)
(Medium performance window)
(Low performance window)
Superior product
Qualified product
Superior product
Qualified product
Airborne sound weighted sound insulation ≥, dB
Heat transfer resistance ≥, m2.K/W||tt| |Test methods
1. Wind pressure strength performance
(A1 grade)
(A2 grade)
(A3 grade)
(B1 grade)
(B2 grade)
(B3 grade)
(C1 grade)
(C2 grade)
(C3 grade)
Test methods shall be in accordance with the provisions of GB7106.
5.2 Air permeability performance
Test methods shall be in accordance with the provisions of GB7107.
5.3 Rainwater leakage performance
Test methods shall be in accordance with the provisions of GB7108.
5.4 Airborne sound insulation performance
Wind pressure strength performance
Air permeability performance<
m/m·h(10Pa)
Rainwater leakage performance≥
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Test method shall be in accordance with the provisions of GB8485.
5.5 Thermal insulation performance
Test method shall be in accordance with the provisions of GB8484.
5.6 Opening and closing performance
When the test window is in use, the window is in a closed state. A force of 50N is applied to the middle part of the movable sash side brace for testing, as shown in the figure, to observe whether the movable sash can be opened flexibly. 50N
6 Inspection rules
6.1 Factory inspection
6.1.1 Inspection items: Inspection shall be carried out in accordance with the requirements of Articles 4.3 and 4.4 of this standard. 6.1.2 Sampling method: 5% of the varieties and specifications of each project shall be sampled, and the number of sampled products shall not be less than three. When one of them does not meet the technical requirements of this standard, the sampled products shall be doubled. If one of them still does not meet the requirements, all of them shall be repaired and can only be shipped after passing the re-inspection. 6.1.3 Products shall be accompanied by a certificate of conformity before leaving the factory. 6.2 Type inspection
Type inspection shall be carried out in any of the following situations: a.
Trial design identification of new products or old products transferred to the factory for production; after formal production, if there are major changes in structure, materials, and processes that may affect product performance; during normal production, a periodic inspection shall be carried out regularly or after a certain amount of production has been accumulated; when the product is resumed after long-term suspension of production; when the national quality supervision agency proposes a requirement for type inspection. Type inspection items shall be tested according to the test methods specified in Chapter 5 of this standard, and the results shall meet the performance requirements of Article 4.5. 6.2.3 Sampling method: During mass production, three products shall be randomly selected from qualified products for type inspection every two years. 7 Marking, packaging, transportation and storage
7.1 Marking
7.1.1 The product markings shall be marked on the obvious parts of the product: a. manufacturer name or trademark; b. product name, c. product model or mark; d. manufacturing date or serial number.
7.1.2 The markings on the packaging box shall comply with the provisions of GB6388. 3 The packaging box shall have obvious words and signs of "moisture-proof", "handle with care" and "upward", and the graphics shall comply with the provisions of GB191. 7.1.3
7.2 Packaging
7.2.1 The product shall be packaged with non-corrosive materials. 7.2.2
The packaging box shall have sufficient strength and moisture-proof measures. 7.2.3 Quantity
Products placed in the box should be ensured not to move with each other. 7.2.4 After the products are packed, there must be a packing list and product inspection certificate in the box. 7.3 Transportation
7.3.1 The transportation vehicle for transporting the products should have rain protection measures and be kept clean and free of dirt. 7.3.2
2 The products should be loaded and unloaded in an appropriate manner to ensure that the geometric shape of the products remains unchanged and the surface is intact. 7.4 Storage
7.4.1 The products should be placed in a ventilated and dry place. It is strictly forbidden to contact with acids, alkalis, and salt substances and prevent rain from intrusion. 7.4.2 The products cannot directly contact the ground, and the bottom should be raised by more than 100mm. W. Engineering Construction Standard Full-text Information System
Scope of Use
Door Frame, Sash
Aluminum Alloy
Stainless Steel
Aluminum Alloy
Zinc Alloy
Copper Alloy
Appendix A
Standard Number and Name of Common Materials
(Reference)
Standard Number and Name
GB5237
GB1220
GB3280
GB4237
GB4232
GB4226
GB4230
GB4239
GB5237
GB319 1
GB3193
GB3880
GB3196
GB1173
GB1175
JB2702
GB1176
GB4425
GB4424
GB3077
GB3274
Aluminum alloy building profiles
Stainless steel bars
Stainless steel cold-rolled steel plates
Stainless steel hot-rolled steel plates
Stainless steel wire for cold heading
Stainless steel cold-worked steel bars
Stainless steel hot-rolled steel strips
Stainless steel cold-rolled steel strips
Aluminum alloy building profiles
Aluminum and aluminum alloy extruded bars
Aluminum and aluminum alloy hot rolled plates
Aluminum and aluminum alloy plates
Aluminum and aluminum alloy wires for rivets
Technical conditions for cast aluminum alloys
Cast zinc alloys
Technical conditions for zinc alloy, aluminum alloy, copper alloy die castings
Technical conditions for cast copper alloys
Lead brass rods
Ordinary brass rods
Technical conditions for ordinary carbon structural steel
Steel grades and general technical conditions for high-quality carbon structural steel Technical conditions for ordinary carbon structural steel and low-alloy structural steel thin plates
Alloy structural steel
Technical conditions
Hot-rolled thick steel sheets of ordinary carbon structural steel and low-alloy structural steel Technical conditions for steel plates
Engineering construction standard full text information system
Glass types
Float glass and
Polished glass
Embossed glass
Tempered glass
Mesh glass
Laminated glass
Insulating glass
Polished 6.8mm
5+net,
Wire type 6.8mm
Appendix B
Types of flat glass and maximum allowable area
(reference)
W.bzsoso.coIm2
Engineering construction standard full text information system
Glass types
5+net,
Wire polished 6.8mm
Insulating glass
Note①3mm float glass includes 3mm ordinary glass.②4mm tempered glass includes embossed tempered glass.Continued table
Wind pressure resistance grade
③The material glass of laminated glass is float glass, and the nominal thickness is the sum of the thickness of the material glass. 240
④The type of insulating glass is indicated by the thickness of the material glass. Those without marks are all float glass, and there is a 6-12mm thick gas layer between the two glass sheets.③Except for 4mm glass, float glass and mesh and wire glass include heat-absorbing glass, and float glass above 6mm includes heat-reflecting glass.Additional notes:
This standard is under the jurisdiction of China Building Standard Design Institute. This standard was drafted by the State-owned Liming Aviation Aluminum Window Company, Shanghai Glass Machinery Factory, and the Institute of Building Physics of China Academy of Building Research.
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