GB/T 32076.8-2017 English PDF

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GB/T 32076.8-2017: High-strength structural bolting assemblies for preloading -- Part 8: Torshear type bolt with cup head, and nut assemblies
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 32076.8-2017	279	Add to Cart	3 days	High-strength structural bolting assemblies for preloading -- Part 8: Torshear type bolt with cup head, and nut assemblies	Valid

Similar standards

GB/T 33943   GB/T 35481   GB/Z 32564   GB/T 32076.11   GB/T 32076.10   GB/T 32076.9   

Basic data

Standard ID: GB/T 32076.8-2017 (GB/T32076.8-2017)
Description (Translated English): High-strength structural bolting assemblies for preloading -- Part 8: Torshear type bolt with cup head, and nut assemblies
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: J13
Classification of International Standard: 21.060.10
Word Count Estimation: 14,115
Date of Issue: 2017-09-29
Date of Implementation: 2018-04-01
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

GB/T 32076.8-2017: High-strength structural bolting assemblies for preloading -- Part 8: Torshear type bolt with cup head, and nut assemblies

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
High-strength structural bolting assemblies for preloading - Part 8. Torshear type bolt with cup head, and nut assemblies ICS 21.060.10 J13 National Standards of People's Republic of China Preload high strength bolting structure connection Part 8. Torsion - cut round head bolt and nut connection pair Part 8.Torsheartypeboltwithcuphead, andnutassemblies 2017-09-29 Posted 2018-04-01 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 connections" includes the following nine 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 8. 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. This section participates in the drafting unit. Hangzhou Hualing Steel High Strength Bolts Co., Ltd., Shanghai Jinma High-strength Fasteners Co., Ltd., Ningbo nine Dragon Fasteners Manufacturing Co., Ltd., Shandong High-strength Fasteners Co., Ltd., Zhejiang Haili Co., Ltd., Jin billion Industrial Co., Ltd., Ning Wave Beijing Electric Technology Co., Ltd., Shanghai High-strength Bolt Factory Co., Ltd., General Machinery Industry Products 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 8. Torsion - cut round head bolt and nut connection 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 torsional shear type round head bolt and nut connection (hereinafter referred to as bolted connection). This part of the design of the bolted connection allows the preload ≥ 0.7Rm × As1). This part of the bolt connection by a bolt, a nut and a washer (only under the nut supporting 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 1) Rm is the nominal tensile strength, As is the nominal stress cross-sectional area of the thread. ......

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