Standard
Track updates
AS/NZS 4968.1:2023
[Current]Heavy road vehicles — Mechanical coupling between articulated vehicle combinations, Part 1: Design criteria and selection requirements for fifth wheel, kingpin and associated equipment
AS/NZS 4968.1:2023 specifies the attachment design forces for fifth wheel assembly and equations to determine the required D-value of components for various combinations. It applies to fifth wheel assemblies used with 50 mm, 75 mm and 90 mm kingpins, and associated equipment for articulated vehicle combination, used in heavy road vehicles, B-doubles and road trains in normal use on both sealed and unsealed roads
Published: 23/06/2023
Pages: 17
Table of contents
Cited references
Content history
Table of contents
Header
About this publication
Preface
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Marking
4.1 General
4.2 Components
4.3 Manufacturer
4.4 Size and rating
5 Fifth wheel assembly and kingpin attachment design forces
5.1 Loading conditions
5.2 Worked examples
5.2.1 D-value design force input
5.2.2 Vertically imposed load design force input
6 Methods for determining D-value
6.1 General
1.1
6.2 Notation
6.3 Equations
6.4 Worked examples
6.4.1 Six-axle articulated vehicle
6.4.2 Nine-axle B-double
6.4.3 B-triple combination
6.4.4 Triple road train with tandem axle converter dollies
Bibliography
Cited references in this standard
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