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GB/T 32076.9-2017: High-strength structural bolting assemblies for preloading -- Part 9: Torshear type bolt with hexagon head with large width across flats, and nut assemblies
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 32076.9-2017 | English | 279 |
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High-strength structural bolting assemblies for preloading -- Part 9: Torshear type bolt with hexagon head with large width across flats, and nut assemblies
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GB/T 32076.9-2017
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Basic data | Standard ID | GB/T 32076.9-2017 (GB/T32076.9-2017) | | Description (Translated English) | High-strength structural bolting assemblies for preloading -- Part 9: Torshear type bolt with hexagon head with large width across flats, and nut assemblies | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | J13 | | Classification of International Standard | 21.060.10 | | Word Count Estimation | 14,130 | | Date of Issue | 2017-07-12 | | Date of Implementation | 2018-02-01 | | Quoted Standard | GB/T 90.1; GB/T 90.2; GB/T 193; GB/T 1237; GB/T 3098.1; GB/T 3098.2; GB/T 3103.1; GB/T 5276; GB/T 5267.2; GB/T 5267.3; GB/T 5779.1; GB/T 5779.2; GB/T 9145; GB/T 22028; GB/T 32076.1; GB/T 32076.2; GB/T 32076.3; GB/T 32076.6 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This standard specifies the screw size M12 ~ M36, the performance level of 10.9 / 10, preload high strength bolting structure with large hexagon head bolts and nut preload connection (hereinafter referred to as the bolt connection). The standard design of the bolt connection allows the preload of �� 0.7R (m) XA (s) (1)). The bolts connected by this standard shall consist of a bolt, a nut and two washers (used under bolts and nuts). The preload test method is described in GB / T 32076.2. This standard applies to the industrial and civil construction, bridges, tower mast structure, boiler steel structure, lifting machinery and other steel structures with preloaded torsional shear high strength bolts. | GB/T 32076.9-2017: High-strength structural bolting assemblies for preloading -- Part 9: Torshear type bolt with hexagon head with large width across flats, and nut assemblies
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High-strength structural bolting assemblies for preloading. Part 9. Torshear type bolt with hexagon head with large width across flats, and nut assemblies
ICS 21.060.10
J13
National Standards of People's Republic of China
Preload high strength bolting structure connection
Part 9. Torsion - type large hexagon head bolts and
Nut connecting pair
Part 9.Torsheartypeboltwithhexagonheadwithlargewidthacrossflats,
2017-07-12 Posted
2018-02-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
China National Standardization Administration released
Foreword
GB/T 32076 "preload high strength bolted joint" includes the following sections.
--- Part 1. General requirements;
--- Part 2. Preload adaptation;
--- Part 3. HR large hexagon head bolt and nut connection;
--- Part 4. HV hexagonal head bolt and nut connection;
--- Part 5. Flat washers;
--- Part 6. Chamfer flat washers;
--- Part 7. M39 ~ M64 large hexagonal head bolt and nut connection;
--- Part 8. Torsion-cut round head bolt and nut connection;
--- Part 9. Torsion shear large hexagon head bolt and nut connection.
This section GB/T 32076 Part 9.
This section drafted in accordance with GB/T 1.1-2009 given rules.
This part is proposed by China Machinery Industry Federation.
This part of the National Standardization Technical Committee fasteners (SAC/TC85) centralized.
This section is responsible for the drafting unit. Machine Productivity Promotion Center.
Participated in the drafting of this section. Shanghai Shenuang High Strength Bolts Co., Ltd., Hangzhou Hualing Steel Co., Ltd., high-strength bolts, Ningbo nine
Long Fastener Manufacturing Co., Ltd. Ningbo Ningli High Strength Fasteners Co., Ltd., Shandong High-strength Fasteners Co., Ltd., Zhejiang Haili Co., Ltd.
Limited, Jin billion Industrial Co., Ltd., Ningbo, Beijing Electric Technology Co., Ltd., Shanghai High-strength Bolt Factory Co., Ltd., Machinery Industry
Parts and components with the product quality supervision and testing center.
This part of the National Standardization Technical Committee fasteners responsible for the interpretation.
Preload high strength bolting structure connection
Part 9. Torsion - type large hexagon head bolts and
Nut connecting pair
1 Scope
This part of GB/T 32076 and GB/T 32076.1 specifies the thread size M12 ~ M36, the performance level of 10.9/10, preload
High strength bolt structure with a large hexagonal head bolt and nut preload connection (hereinafter referred to as bolted connection).
This part of the design of the bolted connection allows the preload ≥ 0.7Rm × As1).
1) Rm is the nominal tensile strength, As is the nominal stress cross-sectional area of the thread.
This part of the bolt connection by a bolt, a nut and two washers (bolts, nut under the support surface) composition.
NOTE For proper results, it is important to ensure that the bolts are used correctly. For proper use of the method, consult or refer to the relevant norms.
Preload adaptability test methods see GB/T 32076.2.
This section applies to industrial and civil buildings, bridges, tower mast, boiler steel, lifting machinery and other steel structures with pre-load connection
Torsional shear type high strength bolt connection.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version applies to this article
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
GB/T 90.1 fastener acceptance inspection
GB/T 90.2 Fasteners signs and packaging
GB/T 193 ordinary thread diameter and pitch series
GB/T 1237 fasteners marking method
GB/T 3098.1 fasteners mechanical properties of bolts, screws and studs
GB/T 3098.2 fasteners mechanical properties of nuts
GB/T 3103.1 Fasteners Tolerances Bolts, screws and nuts
GB/T 5276 fasteners bolts, screws, studs and nuts size code and labeling
GB/T 5267.2 fasteners non-electrolytic zinc coating
GB/T 5267.3 fasteners hot-dip galvanized layer
GB/T 5779.1 fasteners surface defects bolts, screws and studs general requirements
GB/T 5779.2 fasteners surface defects nuts
GB/T 9145 ordinary thread medium accuracy, the preferred series of the ultimate size
GB/T 22028 hot-dip galvanized thread on the thread to accommodate zinc coating
GB/T 32076.1 preload high strength bolted structure connection - Part 1. General requirements
GB/T 32076.2 preload high strength bolted joints - Part 2 - Preload adaptability
GB/T 32076.3 preload high-strength bolting structure connection deputy Part 3. HR large hexagon head bolt and nut connection
GB/T 32076.6 preload high strength bolted joints - Part 6. chamfered flat washers
3 bolt
3.1 bolt type size
Bolt type size shown in Figure 1 and Table 1. Plum head type size shown in Figure 1 and Table 2. Size code and label should be consistent with GB/T 5276.
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