ISO/FDIS 16881-1

Cranes — Design calculation for wheel/rail contacts and associated trolley track supporting structure — Part 1: General

This part of ISO 16881 gives the requirements for the selection of the size for iron or steel wheels and presents the formulae for the local stresses in crane structures due to the effects of the wheel loads. This standard covers requirements for steel and cast iron wheels and is applicable for metallic wheel/rail contacts only. Roller bearings are not in the scope of this standard. It is to be used together with the classification of ISO 4301 series and the loads and load combinations of ISO 8686 series. It is based upon the limit state method (see ISO 8686-1). This Standard is for design purposes only and should not be seen as a guarantee of actual performance.

Appareils de levage à charge suspendue — Calcul de conception des contacts galets/rails et de la structure de support du chariot de roulement — Partie 1: Généralités

General Information

• Status: Not Published
• ICS: 53.020.20 - Cranes
• Technical Committee: ISO/TC 96/SC 10 - Design principles and requirements
• Drafting Committee: ISO/TC 96/SC 10 - Design principles and requirements
• Current Stage: 5020 - FDIS ballot initiated: 2 months. Proof sent to secretariat
• Start Date: 25-Apr-2024
• Completion Date: 25-Apr-2024

Relations

• Revises: ISO 16881-1:2005 - Cranes — Design calculation for rail wheels and associated trolley track supporting structure — Part 1: General
• Effective Date: 06-Jun-2022

Standards Content (Sample)

FINAL DRAFT
International
Standard
ISO/FDIS 16881-1
ISO/TC 96/SC 10
Cranes — Design calculation
Secretariat: DIN
for wheel/rail contacts and
Voting begins on:
associated trolley track supporting
2024-04-25
structure —
Voting terminates on:
2024-06-20
Part 1:
General
Appareils de levage à charge suspendue — Calcul de conception
des contacts galets/rails et de la structure de support du chariot
de roulement —
Partie 1: Généralités
RECIPIENTS OF THIS DRAFT ARE INVITED TO SUBMIT,
WITH THEIR COMMENTS, NOTIFICATION OF ANY
RELEVANT PATENT RIGHTS OF WHICH THEY ARE AWARE
AND TO PROVIDE SUPPOR TING DOCUMENTATION.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO-
LOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE
TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL
TO BECOME STAN DARDS TO WHICH REFERENCE MAY BE
MADE IN NATIONAL REGULATIONS.
Reference number
ISO/FDIS 16881-1:2024(en) © ISO 2024

---------------------- Page: 1 ----------------------
FINAL DRAFT
ISO/FDIS 16881-1:2024(en)
International
Standard
ISO/FDIS 16881-1
ISO/TC 96/SC 10
Cranes — Design calculation
Secretariat: DIN
for wheel/rail contacts and
Voting begins on:
associated trolley track supporting
structure —
Voting terminates on:
Part 1:
General
Appareils de levage à charge suspendue — Calcul de conception
des contacts galets/rails et de la structure de support du chariot
de roulement —
Partie 1: Généralités
RECIPIENTS OF THIS DRAFT ARE INVITED TO SUBMIT,
COPYRIGHT PROTECTED DOCUMENT
WITH THEIR COMMENTS, NOTIFICATION OF ANY
RELEVANT PATENT RIGHTS OF WHICH THEY ARE AWARE
AND TO PROVIDE SUPPOR TING DOCUMENTATION.
© ISO 2024
IN ADDITION TO THEIR EVALUATION AS
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO-
LOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL
or ISO’s member body in the country of the requester.
TO BECOME STAN DARDS TO WHICH REFERENCE MAY BE
MADE IN NATIONAL REGULATIONS.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland Reference number
ISO/FDIS 16881-1:2024(en) © ISO 2024

© ISO 2024 – All rights reserved
ii

---------------------- Page: 2 ----------------------
ISO/FDIS 16881-1:2024(en)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
3.1 General .1
3.2 Symbols and abbreviations .2
4 General . 3
4.1 General principles .3
4.1.1 Unit-consistent hardness .
...

ISO/DISFDIS 16881-1:2023 (E)
ISO/TC 96/SC 10
Date: 2023-12-19
ISO/TC 96/SC 10/WG 1
Secretariat: DIN

Date: 2024-04-02
Cranes — Design calculation for wheel/rail contacts and
associated trolley track supporting structure — —
Part 1:
General
Appareils de levage à charge suspendue — Calcul de conception des contacts galets/rails et de la
structure porteuse des rails de support du chariot — de roulement —
Partie 1 : Généralités

© ISO 2023 – All rights reserved

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ISO #####-#:####(X)

A model document of an International Standard (the Model International Standard) is available at:
https://www.iso.org/drafting-standards.html

2 © ISO #### – All rights reserved

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FDIS stage
© ISO 2023 – All rights reserved

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ISO #####-#:####(X/FDIS 16881-1:2024(en)
© ISO 20232024
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication
may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying,
or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO
at the address below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: + 41 22 749 01 11
EmailE-mail: [e-mail]
Website: www.iso.orgwww.iso.org
Published in Switzerland
iv © ISO #### 2024 – All rights reserved
iv

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ISO/DIS ISOFDIS 16881-1:20232024(en)
Contents
Foreword . viii
Introduction . ix
Part 1: General . 1
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
3.1 General . 2
3.2 Symbols and abbreviations . 2
4 General . 3
4.1 General principles . 3
4.1.1 Unit-consistent hardness . 3
4.2 Line and point contact cases . 4
4.3 Hardness profile below contact surface . 5
4.4 Equivalent modulus of elasticity . 7
5 Proof of static strength . 8
5.1 General . 8
5.2 Design contact force . 8
5.3 Static limit design contact force . 8
5.3.1 General . 8
5.3.2 Calculation of the limit design force . 8
5.
...