GB/T 44082-2024 PDF English
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GB/T 44082-2024: Road vehicles - Coupling equipment between vehicles in multiple vehicle combinations - Strength requirements
---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT44082-2024
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 43.080.10
CCS T 70
Road vehicles -- Coupling equipment between vehicles in
multiple vehicle combinations -- Strength requirements
(ISO 18868.2013, Commercial road vehicles -- Coupling equipment between vehicles
in multiple vehicle combinations -- Strength requirements, MOD)
Issued on: MAY 28, 2024
Implemented on: SEPTEMBER 01, 2024
Issued by. State Administration for Market Regulation;
Standardization Administration of the People's Republic of China.
Table of Contents
Foreword... 3
1 Scope... 5
2 Normative references... 5
3 Terms and definitions... 6
4 Symbols... 7
5 Applicable vehicle train types... 8
6 Strength requirements... 9
7 Test methods and judgment... 13
Annex A (informative) Comparison on structural numbers... 14
Annex B (informative) Calculation examples for strength requirements of coupling
equipment between vehicles in multiple vehicle combinations... 15
Bibliography... 18
Foreword
This document was drafted in accordance with the rules given in GB/T 1.1-2020
"Directives for standardization - Part 1.Rules for the structure and drafting of
standardizing documents".
The modification of this document adopts ISO 18868.2013 "Commercial road vehicles
-- Coupling equipment between vehicles in multiple vehicle combinations -- Strength
requirements".
Compared with ISO 18868.2013, this document has more structural adjustments. See
Annex A for a comparison of the structural number changes between the two documents.
The technical differences between this document and ISO 18868.2013 and their reasons
are as follows.
a) Added "Test methods and judgment" as the document's prescribed content (see
Chapter 1 of this document) to facilitate test and testing. Added "semi-trailer
tractor" as the document's applicable scope (see Chapter 1) to comply with the
actual vehicle and train models;
b) Deleted the terms "mid-axle trailer", "semi-trailer tractor trailer", "drawbar trailer"
and "semi-trailer tractor" (see 2.1, 2.2, 2.3 and 2.7 of ISO 18868.2013);
c) Added normative reference GB/T 3730.1 (see Chapter 3 of this document);
d) Added the terms "A-center-axle trailer", "B-center-axle trailer" and "C-trailer"
(see 3.1, 3.2 and 3.6 of this document);
e) Changed the definitions of "semi-trailer", "A-trailer" and "trailer towing vehicle"
(see 3.3, 3.4 and 3.7 of this document; 2.4, 2.5 and 2.8 of ISO 18868.2013);
f) Changed the order and names of vehicle models (see Chapter 5 of this document;
Chapter 4 of ISO 18868.2013);
g) Changed the number of axles of B-trailer to comply with the provisions of GB
1589-2016 (see Table 2 of this document; 4.5 of ISO 18868.2013);
h) Added "Test methods and judgment" (see Chapter 7 of this document).
The following editorial changes were made to this document.
a) To coordinate with the existing standards, the name of the standard was changed
to "Road vehicles -- Coupling equipment between vehicles in multiple vehicle
combinations -- Strength requirements";
b) The amendments of ISO 18868.2013/Amd1.2020 were incorporated. The outer
Road vehicles -- Coupling equipment between vehicles in
multiple vehicle combinations -- Strength requirements
1 Scope
This document specifies the calculation, test methods and determination of the strength
requirements for coupling equipment of five types of vehicle trains and their multiple
vehicle combinations.
This document applies to vehicle trains consisting of N2 and N3 tractor vehicles and O3
and O4 trailers and/or semi-trailer tractor trailers.
2 Normative references
The following referenced documents are indispensable for the application of this
document. For dated references, only the edition cited applies. For undated references,
the latest edition of the referenced document (including any amendments) applies.
GB/T 3730.1, Terms and definitions of motor vehicles -- Trailers and combination
vehicle - Part 1.Type
ISO 8716, Road vehicles -- Fifth wheel kingpins -- Strength test
NOTE. GB/T 15088-2009, Road vehicles -- Fifth wheel kingpins -- Strength test (ISO
8716.2001, IDT)
ISO 8717, Commercial road vehicles -- Fifth wheel couplings -- Strength tests
NOTE. GB/T 20069-2006, Road vehicle traction seat strength tests (ISO 8717.2000, MOD)
ISO 8718, Road vehicles -- Drawbar couplings and eyes for hinged drawbars --
Strength tests
NOTE. GB/T 15087-2009, Road vehicles -- Drawbar couplings and eyes for hinged drawbars
-- Strength test (ISO 8718.2001, IDT)
ISO 12357-1, Commercial road vehicles -- Drawbar couplings and eyes for rigid
drawbars – Part 1.Strength tests for general cargo centre axle trailers
NOTE. GB/T 44039.1-2024, Road vehicles -- Drawbar couplings and eyes for rigid drawbars
-- Part 1.Strength tests for general cargo centre-axle trailers (ISO 12357-1.1999, MOD)
ISO 12357-2, Commercial road vehicles -- Drawbar couplings and eyes for rigid
drawbars – Part 2.Strength tests for special applications
NOTE. GB/T 44039.2-2024, Road vehicles - Drawbar couplings and eyes for rigid drawbars -
Part 2.Strength tests for special applications (ISO 12357-2.2007, MOD)
3 Terms and definitions
For the purposes of this document, the terms and definitions defined in GB/T 3730.1 as
well as the followings apply.
3.1 A-center-axle trailer
A mid-axle trailer with towing function.
3.2 B-center-axle trailer
A mid-axle trailer without towing function.
3.3 semi-trailer
A trailer with the axle placed behind the vehicle's center of gravity (when the vehicle is
evenly loaded) and equipped with a coupling equipment that can transmit horizontal or
vertical forces to the semi-trailer tractor or semi-trailer trailer.
NOTE. The connection between the semi-trailer and the semi-trailer tractor or the semi-trailer
tractor is achieved through a traction pin and a fifth wheel.
[Source. GB/T 3730.1-2022, 7.1, modified]
3.4 A-trailer
A semi-trailer that a coupling equipment is installed at the rear of the vehicle for towing
a mid-axle trailer or a semi-trailer.
NOTE. The connection between the A-trailer and the mid-axle trailer or semi-trailer is achieved
through the drawbar connector and the drawbar eye.
3.5 B-trailer
link-trailer
A semi-trailer with a fifth wheel mounted on the rear of the vehicle for towing another
semi-trailer.
3.6 C-trailer
A semi-trailer without towing function.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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