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GB/T 32076.11-2024 English PDF

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GB/T 32076.11-2024: High-strength structural bolting assemblies for preloading - Part 11: Load indicating washer
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GB/T 32076.11-2024English379 Add to Cart 4 days [Need to translate] High-strength structural bolting assemblies for preloading - Part 11: Load indicating washer Valid GB/T 32076.11-2024

PDF similar to GB/T 32076.11-2024


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Basic data

Standard ID GB/T 32076.11-2024 (GB/T32076.11-2024)
Description (Translated English) High-strength structural bolting assemblies for preloading - Part 11: Load indicating washer
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard J13
Classification of International Standard 20.060.30
Word Count Estimation 18,134
Date of Issue 2024-03-15
Date of Implementation 2024-10-01
Issuing agency(ies) State Administration for Market Regulation, China National Standardization Administration

GB/T 32076.11-2024: High-strength structural bolting assemblies for preloading - Part 11: Load indicating washer


---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.
ICS 20.060.30 CCSJ13 National Standards of People's Republic of China Preloaded high strength bolted structural connection Part 11.Load indicating washers Part 11.Load indicating washer 2024-10-01 Implementation State Administration for Market Regulation The National Standardization Administration issued

Table of Contents

Preface I Introduction II 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Load indicating washer 1 4.1 General 1 4.2 Type and size 2 4.3 Technical requirements 3 4.4 Compression load 3 4.5 Compression load test method 4 4.6 Logo 8 4.7 Marking 8 5 Nut face washers (HN) and bolt face washers (HB) 8 5.1 Type and size 8 5.2 Technical requirements 10 5.3 Sign 10 5.4 Mark 11 6 Features 11 6.1 Preloaded high-strength bolted structural connection pair 11 6.2 Functional characteristics of load indicating washers in joints 12 6.3 Functional characteristics of connections with load indicating washers 13 6.4 Method for evaluating the functional characteristics of load indicating washers 14 7 Acceptance rules, quality certification documents and packaging 15 7.1 Acceptance Rules 15 7.2 Quality certification documents 15 7.3 Packaging 15

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents" Drafting. This document is part 11 of GB/T 32076 "Preloaded high-strength bolted structural connections". GB/T 32076 has been published in Lower part. --- Part 1.General requirements; --- Part 2.Preload adaptability; --- Part 3.HR type large hexagon head bolt and nut connection pairs; --- Part 4.HV type large hexagon head bolt and nut connection pairs; --- Part 5.Flat washers; --- Part 6.Chamfered flat washers; --- Part 7.Connection pairs of M39 to M64 large hexagon head bolts and nuts; --- Part 8.Torsion shear type round head bolt and nut connection pairs; --- Part 9.Torsion shear type large hexagon head bolt and nut connection; --- Part 10.Installation technical requirements; --- Part 11.Load indicating washers. Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents. This document was proposed by the China Machinery Industry Federation. This document is under the jurisdiction of the National Technical Committee on Standardization of Fasteners (SAC/TC85). This document was drafted by. China Machinery Productivity Promotion Center Co., Ltd., Shanghai Fansheng Fastening Technology Co., Ltd., Suzhou Unico Fasteners Co., Ltd., Shandong Zhongxing Electric Tools Co., Ltd., Zhejiang Haili Co., Ltd., Henan Aerospace Precision Manufacturing Co., Ltd., Jinyi Industrial Co., Ltd., Dongfang Electric Corporation Dongfang Electric Corporation, Zhoushan Zhengyuan Standard Parts Co., Ltd., Shanghai High Strength Bolt Factory Co., Ltd. Company, Guangdong Starlock Fastening System Co., Ltd., China Machinery Research Institute of Standards and Technology (Beijing) Co., Ltd., Suzhou Thermal Engineering Research Institute Co., Ltd. Co., Ltd., Beijing Jinzhaobo High Strength Fasteners Co., Ltd., and Hebei Wuwei Avionics Technology Co., Ltd. This document is interpreted by the National Technical Committee on Fastener Standardization.

Introduction

GB/T 32076 "Preloaded high-strength bolted structural connection pairs" specifies the material selection of preloaded high-strength bolted structural connection pairs in my country. It is widely used in wind power generation equipment, industrial and civil buildings, bridges and tower structures, boilers, etc. The field of steel structure, lifting machinery and other steel structures consists of 11 parts. --- Part 1.General requirements. The purpose is to standardize the terms and definitions, mechanical properties, test Testing items, quality control and consistency evaluation. --- Part 2.Preload adaptability. The purpose is to standardize the preload high-strength bolted structural connection pairs to meet different installation conditions Adaptability test method to ensure load consistency under load conditions. --- Part 3.HR type large hexagon head bolt and nut connection pairs. The purpose is to standardize the design conditions under different load limits. HR type preloaded high strength bolted structural connection by-product type dimensions and technical requirements. --- Part 4.HV type large hexagon head bolt and nut connection pair. The purpose is to standardize the design conditions under different load limits. HV type preloaded high strength bolted structural connection by-product type dimensions and technical requirements. --- Part 5.Flat washers. The purpose is to standardize the types, dimensions and technical specifications of flat washers for preloaded high-strength bolted structural connections Require. --- Part 6.Chamfered flat washers. The purpose is to standardize the types and dimensions of chamfered flat washers for preloaded high-strength bolted structural connections and technical requirements. --- Part 7.M39~M64 large hexagon head bolt and nut connection pairs. The purpose is to standardize M39~M64 large size products The product has been verified through material, molding process and performance tests, and the dimensions and technical requirements are specified. --- Part 8.Torsion shear type round head bolt and nut connection pair. The purpose is to standardize the type of torsion shear type round head bolt connection pair product Dimensions and technical requirements. --- Part 9.Torsion shear type large hexagon head bolt and nut connection pair. The purpose is to standardize the torsion shear type large hexagon head bolt connection pair Product type, size and technical requirements. --- Part 10.Installation technical conditions. The purpose is to standardize the preloaded high-strength bolted structural connections that meet the reliability requirements of the equipment Installation requirements for the secondary torque method. --- Part 11.Load indicating washers. The purpose is to standardize the type of load indicating washers for preloaded high-strength bolted structural connections. Dimensions and technical requirements. The load indicating washers specified in this document are placed under the bolt head or under the nut, and are used in conjunction with the nut face washers (HN) or bolt face washers (HB). Load indicating device used in combination with preloaded high-strength bolted structural connection pairs in accordance with GB/T 32076.3 and GB/T 32076.4 The load indicating washer has a protrusion on one side that is compressed under load. When tightened (the protrusion is compressed) by using appropriate assembly tightening methods, If the gap between the gasket surfaces is within the specified value range, the preload high-strength bolted structural connection pair can obtain the specified preload. GB/T 32076.1 and GB/T 32076.2 together specify the load indicating washers, bolts and nuts suitable for preloaded high-strength bolted structural connections. General dimensions, tolerances, material and functional characteristics and test methods for female face washers (HN) and bolt face washers (HB). Preloaded high-strength bolted structural connections are very sensitive to differences in manufacturing and lubrication. Therefore, it is important to supply preloaded high-strength bolted structural connections from the same manufacturer. Similarly, the surface treatment of the preloaded high-strength bolted structural connection pair is carried out by the same A manufacturer controls. Preloaded high strength bolted structural connection Part 11.Load indicating washers

1 Scope

This document specifies load indicating washers, nut face washers (HN) and bolt face washers suitable for preloaded high strength bolted structural connections. Type and size, technical requirements, functional characteristics and acceptance rules, quality certification documents and packaging of washers (HB). This document is applicable to buildings, bridges, tower mast structures, boiler steel structures, lifting machinery, pipelines, machine body blind holes and other steel structures. Load indicating washers for high strength bolted structural connections and their accessories. nut face washers (HN) and bolt face washers (HB).

2 Normative references

The contents of the following documents constitute the essential clauses of this document through normative references in this document. For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to this document. document. GB/T 90.1 Fastener acceptance inspection GB/T 90.2 Fastener marking and packaging GB/T 230.1 Rockwell hardness test for metallic materials Part 1.Test method GB/T 1237 Fastener marking method GB/T 3103.3 Fastener tolerances Flat washers GB/T 4340.1 Vickers hardness test for metallic materials Part 1.Test method GB/T 5276 Fasteners - Bolts, screws, studs and nuts - Size codes and markings GB/T 16825.1 Inspection and calibration of static uniaxial testing machines for metallic materials Part 1.Tension and/or compression tests Inspection and calibration of machine force measurement system GB/T 32076.1 Preloaded high-strength bolted structural connections Part 1.General requirements GB/T 32076.2 Preloaded high-strength bolted structural connections Part 2.Preload adaptability GB/T 32076.3 Preloaded high-strength bolted structural connections Part 3.HR-type large hexagonal head bolt and nut connections GB/T 32076.4 Preloaded high-strength bolted structural connections Part 4.HV type large hexagon head bolt and nut connections GB/T 32076.5 Preloaded high-strength bolted structural connections Part 5.Flat washers GB/T 32076.6 Preloaded high-strength bolted structural connections Part 6.Chamfered flat washers Sherardizing-Specification)

3 Terms and definitions

The terms and definitions defined in GB/T 32076.1 apply to this document.

4 Load indicating washers

4.1 General Load indicating washers are GB/T 32076.3 and GB/T 32076.4 pre-loaded washers with thread specifications of M12 to M36 and performance grades of 8.8/8 and 10.9/10.

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