This standard specifies the product classification, technical requirements, inspection rules, inspection methods, marking, packaging, transportation, storage, etc. of top-hung steel skylights for industrial plants. This standard applies to top-hung steel skylights for general industrial plants. JG/T 3004.1-1993 Steel Skylight Top-hung Steel Skylight JG/T3004.1-1993 Standard download decompression password: www.bzxz.net

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Construction Industry Standard of the People's Republic of China JG/T 3004.1—93
Steel skylight
Top hung steel skylight
Steel skylight-Top hung steel skylightConstruction Standard
1993—07—28Release
Ministry of Construction of the People's Republic of China
Engineering Construction Standard Full Text Information System
1994—02—01Implementation
Engineering Construction Standard Full Text Information System
Subject Content and Scope of Application
Construction Industry Standard of the People's Republic of China Steel skylight
Top hung steel skylight
Steel skylightTop hung steel skylightJG/T3004.1—93
This standard specifies the product classification, technical requirements, inspection rules, inspection methods, marking, packaging, transportation, storage, etc. of the top-hung steel skylights of industrial plants (hereinafter referred to as steel skylights). This standard applies to top-hung steel skylights of general industrial plants. 2
Cited standards
GB2597
GB6723
GB5824
3 Terms
Hot-rolled window frame steel
Ordinary carbon steel cold-rolled steel strip
General opening cold-formed steel
Building door and window opening size series
Hot-rolled equal-leg angle steel varieties
Hot-rolled unequal-leg angle steel varieties
3.1 Top edge hook
Accessories for hooking and bearing steel skylight sashes (see Figure 1 for the cross section). 2.5
Ministry of Construction of the People's Republic of China
Approved on July 28, 1993
Engineering Construction Standard Full Text Information System
Implementation on February 1, 1994
Engineering Construction Standard Full Text Information System
3.2 Seam cover plate - a member used to cover the seam when the two sides of the steel skylight opening sash are closed (see Figure 2 for the cross section). 3.3 Safety limit block - an accessory used to prevent the skylight from falling off when the steel skylight is opened. 3.4#
Anti - a member used to connect the steel skylight fixed sash and the rain shield sash. Rain shield
3.5 Fixing piece - a fixing piece connected to the lower edge of the fixed sash. 3.6
Connecting piece - an accessory for the horizontal combination of steel skylight sashes.
Product classification
4.1 Product specifications
4.1.1 The opening size of steel skylights shall comply with the provisions of GB5824. 4.1.2 According to different opening heights, steel skylights can be divided into three specifications: 900, 1200, and 1500, coded as STC9, STC12STC15.
4.1.3 Rainproof windows can be divided into three specifications: TYC9, TYC12, and TYC155 according to different window heights of steel skylights.
4.1.4 The basic window sash width can be divided into 20 types (codes 1 to 20), see Appendix A. 4.2 Opening methods
a. Electric opening;
b. Manual opening.
4.3 Marking
Marking example:
JG/T3004
Basic window sash width code
Steel skylight height
Top-hung steel skylight
Top-hung steel skylight with a steel skylight opening height of 1200mm and a basic window width code of 8: STC12—8JG/T3004
Technical requirements
5.1 Materials
The geometric dimensions of the profile section shall comply with the provisions of GB2597, YB166, YB167, and GB6732. 5.2 Assembly requirements
5.2.1 Overall dimensions
5.2.1.1 The allowable deviations of the width and height dimensions of the steel skylight sash shall comply with the provisions of Table 1. Engineering Construction Standard Full-text Information System
Engineering Construction Standard Full-text Information System
Allowable Deviation
Width (B)bzxZ.net
Height (A)
≤1800
The allowable length difference between the two diagonals shall comply with the provisions of Table 2. Table 2
Allowable Length Difference
Measured Length of Diagonal (L)
≤3000
First-class
First-class
5.2.1.3 The vertical offset between the upper frame component and the lower frame component of the steel skylight sash shall not exceed 3mm. 5.2.2 The difference in the size of the window core of the steel skylight shall not exceed 3mm. 5.2.3 The plane height difference at the connection between the upper frame, lower frame and window core component of the steel skylight shall not exceed 1.5mm. The intersection welding of the components of the steel skylight shall be firm, and no defects such as false welding, leaking welding, and melting leakage are allowed. 5.2.4
The assembly dimension requirements of the safety limit block shall comply with the provisions of Figure 3. Safety limit block
5.2.6 The straightness of each component of the steel skylight shall not be greater than 1%0. 5.2.7
The hole spacing and hole position size deviation of each accessory of the steel skylight shall not be greater than 1mm. 5.2.8 The steel skylight shall be degreased, derusted and weld slag removed before painting. 5.2.9 The small inspection window shall be flexible to open and close without obstruction, rebound, inverted warping, etc., and a water-shedding plate shall be attached. 5.3 Appearance
5.3.1 The paint film shall be uniform in thickness and shall not have obvious defects such as paint leakage and paint accumulation. Qualified products
Qualified products
The burrs on the ends of the upper and lower frame components and the assembly holes of the steel skylight should not be greater than 0.5mm, and the surface should be flat without obvious hammer 5.3.2
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Engineering Construction Standard Full Text Information System
Inspection rules
Inspection items
Product factory inspection items should be carried out in accordance with the requirements of 5.2 and 5.3. Sampling method
Products are sampled and inspected in batches according to the contract number, and 5% of each batch is sampled, but the minimum sampling quantity shall not be less than 5.6.3 Judgment rules
6.3.1 The key items of the inspected products must meet the requirements, the main items meet the respective requirements, and those that meet the requirements for more than six (including six) general items are first-class products; those that meet the requirements for more than four (including four) items are qualified products. 6.3.2 If the qualified product rate of the sampled products is lower than 80% at one time, the sample inspection shall be doubled. If the qualified product rate of the second sample inspection still does not reach 90%, the batch of products shall be returned for repair. 6.3.3 The inspection items, measuring tools and testing methods of steel skylights are shown in Appendix B. 7 Marking and packaging
7.1 Marking
Products shall have trademarks and qualified marks when leaving the factory. 7.2 Packaging
7.2.1 Products can be bulked or packaged according to user requirements before leaving the factory, but the window sashes shall not be deformed by external forces, and the product factory qualification certificate shall be attached.
7.2.2 Accessories shall be packaged and tied with wooden boxes or other suitable materials. Transportation, stacking and storage
8.1 Transportation
8.1.1 During transportation, it is strictly forbidden to throw or drop the products. They shall be placed flat. When transported vertically, the inclination shall be between 10° and 20°, and they shall be tightened with a rope tightener.
8.2 Stacking
8.2.1 Whether the product is placed vertically or horizontally, it should be leveled with pads and 100mm above the ground. The upper part of the product should not be under pressure after stacking. When stacking vertically, the inclination should be between 10° and 20°. 8.3 Storage
8.3.1 The products should be stored in the warehouse when they arrive at the construction site. If they are piled in the open air, they should be covered to avoid contact with corrosive media. Engineering Construction Standard Full Text Information System
Engineering Construction Standard Full Text Information System
Window Type Code
Window Type Code
Window Type Code
Appendix A
Basic Specification Codes of Universal Length Opening Sash (Table 1, Table 2) (Supplement)
Right Window
Tc9—1
TC12—1
TC15—1
Right Window
TC12—11
TC15—11
Middle Window
Tc9—2
TC12—2
TC15—2
Middle Window
TC12 —12
TC15—12
Left window
TC9—3
TC12—3
TC15—3
Left window
TC12—13
TC15—13
Fixed window
TC9—4
TC12—4
Tc9—5
TC12—5
TC15—5
Fixed window
TC12—14
TC15—14
Basic window specification code for segmented opening sash
(Table 3, Table 4)
(Supplement)|| tt||Engineering Construction Standard Full Text Information System
Opening Sash Window
TC9—6
TC12—6
TC15—6
TC9—7
TC12—7
TC9—8
TC12—8
TC15—8
Fixed Window
TC9—9
TC12—9
TC12—15
TC15—15
TC9—10
TC12—10
TC15—10
Glass Grid
Large Glass
Glass Glass grid
Small glass
Glass grid
Large glass
Engineering construction standard full text information system
Window type code
Engineering construction standard full text information system
Opening sash window
TC12—16
Fixed window
TC12—20
TC15—20
Glass grid
Small glass
Engineering construction standard full text information system
Item classification
Measuring tools and methods
Top-hung steel skylight inspection items,
(supplement)
Sequence number of clauses in this standard
5. 2. 1. 1
5. 2. 1. 2
5. 2. 1. 3
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Project Content
The intersection welding of each component should be firm, and there should be no defects such as false welding, leaking welding, melting leakage, etc.
Assembly size of safety limit block 15±mm
Steel skylight should be degreased, derusted and weld slag removed before painting. The height dimension deviation should comply with the provisions of Table 1
The width dimension deviation should comply with the provisions of Table 1
The length difference of the two diagonals should comply with the provisions of Table 2
The vertical offset of the upper frame component and the lower frame component shall not be greater than 3mm
The difference in the size of the window core grid shall not be greater than 3mm
The height difference of the plane at the connection between the window core and the upper frame or lower frame shall not be greater than 1.5mm
The straightness of each component of the steel skylight shall not be greater than 1%The hole distance and hole position dimension deviation of each accessory shall not be greater than 1mmThe opening and closing of the small inspection window shall be flexible, without obstruction, rebound, There should be no phenomenon such as warping, and a water-shedding board should be attached
The thickness of the paint layer should be uniform, and there should be no obvious defects such as paint leakage and paint accumulation
The burrs at the ends of the upper and lower frame components and the assembly holes should not be 5mm
Inspection measuring tools and methods
Special inspection tools
Vernier caliper
Steel tape measure
Steel tape measure
Measurement position: Both ends
Steel tape measure, measure Inside corner side
Special measuring tool or hanging
Line bob
Steel tape measure
Measurement position: Window core web
Vernier caliper
Depth gauge
Steel ruler
Steel tape measure
Vernier caliper
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Additional instructions:
This standard is proposed by the Standard and Quota Research Institute of the Ministry of Construction. This standard is under the jurisdiction of the China Building Standard Design Institute, the technical unit responsible for building products and equipment standards of the Ministry of Construction. This standard was drafted by the China Building Metal Structure Association, Shanghai Steel Window Factory, and Wuxi County New Steel Skylight Factory. The main drafters of this standard are: Mao Lirong, Zhang Ailan, Chen Jianhua, Chai Shuguang, and Cao Jianmin. This standard is entrusted to the China Building Metal Structure Association for interpretation. Engineering Construction Standard Full Text Information System
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