Steels for the reinforcement of concrete — Reinforcement couplers for mechanical splices of bars — Part 1: Requirements

This document specifies requirements for couplers for the mechanical splicing of steel reinforcing bars. More onerous requirements can be specified by the customer. This document is applicable to the continuous production of coupler components. It is intended to be used with adequate control measures for the processing of reinforcing bars, i.e. the production of the mechanical splice. This document specifies requirements for couplers used for mechanical splices in reinforced concrete structures under predominantly static loads. It specifies additional requirements for couplers used in structures subject to high-cycle elastic fatigue loading and/or low-cycle elastic-plastic reverse loading. NOTE ISO 15835-3 specifies the quantity of tests. Compression-only couplers such as end-bearing sleeves are not covered by the ISO 15835 series.

Aciers pour l'armature du béton — Coupleurs d'armature destinés aux raboutages mécaniques de barres — Partie 1: Exigences

General Information

Status
Published
Publication Date
11-Oct-2018
Current Stage
6060 - International Standard published
Start Date
12-Oct-2018
Completion Date
12-Oct-2018
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INTERNATIONAL ISO
STANDARD 15835-1
Second edition
2018-10
Steels for the reinforcement of
concrete — Reinforcement couplers
for mechanical splices of bars —
Part 1:
Requirements
Aciers pour l'armature du béton — Coupleurs d'armature destinés
aux raboutages mécaniques de barres —
Partie 1: Exigences
Reference number
ISO 15835-1:2018(E)
ISO 2018
---------------------- Page: 1 ----------------------
ISO 15835-1:2018(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2018

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.
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Email: copyright@iso.org
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Published in Switzerland
ii © ISO 2018 – All rights reserved
---------------------- Page: 2 ----------------------
ISO 15835-1:2018(E)
Contents Page

Foreword ........................................................................................................................................................................................................................................iv

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 1

4 Symbols .......................................................................................................................................................................................................................... 2

5 Requirements .......................................................................................................................................................................................................... 3

5.1 General ........................................................................................................................................................................................................... 3

5.2 Categories of mechanical splices ............................................................................................................................................. 3

5.3 Strength and ductility under static forces ....................................................................................................................... 4

5.3.1 General...................................................................................................................................................................................... 4

5.3.2 Strength ................................................................................................................................................................................... 4

5.3.3 Ductility ................................................................................................................................................................................... 4

5.4 Slip under static forces ..................................................................................................................................................................... 5

5.4.1 Testing requirements ................................................................................................................................................... 5

5.4.2 Slip requirement .............................................................................................................................................................. 5

5.5 Properties under high-cycle fatigue loading (optional) ...................................................................................... 6

5.5.1 Testing programme........................................................................................................................................................ 6

5.5.2 Fatigue performance .................................................................................................................................................... 6

5.5.3 S-N diagram (optional) ............................................................................................................................................... 7

5.6 Properties under low-cycle reverse loading (optional) ....................................................................................... 7

5.7 Marking and traceability ................................................................................................................................................................ 7

5.8 Installation instructions .................................................................................................................................................................. 7

Annex A (informative) Items to be specified ................................................................................................................................................ 8

Bibliography ................................................................................................................................................................................................................................ 9

© ISO 2018 – All rights reserved iii
---------------------- Page: 3 ----------------------
ISO 15835-1:2018(E)
Foreword

ISO (the International Organization for Standardization) is a worldwide federation of national standards

bodies (ISO member bodies). The work of preparing International Standards is normally carried out

through ISO technical committees. Each member body interested in a subject for which a technical

committee has been established has the right to be represented on that committee. International

organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.

ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of

electrotechnical standardization.

The procedures used to develop this document and those intended for its further maintenance are

described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the

different types of ISO documents should be noted. This document was drafted in accordance with the

editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/directives).

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of

any patent rights identified during the development of the document will be in the Introduction and/or

on the ISO list of patent declarations received (see www .iso .org/patents).

Any trade name used in this document is information given for the convenience of users and does not

constitute an endorsement.

For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and

expressions related to conformity assessment, as well as information about ISO's adherence to the

World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see www .iso

.org/iso/foreword .html.

The committee responsible for this document is ISO/TC 17, Steel, Subcommittee SC 16, Steels for the

reinforcement and prestressing of concrete.

This second edition cancels and replaces the first edition (ISO 15835-1:2009), which has been

technically revised with changes made to Clauses 1, 2, 3, 4 and 5, 3.2, 3.5, 5.2, 5.3, 5.5 and 5.6, Table 1,

and Annexes C and D. Clause 6 and Annexes A and B have been revised and have been moved out into a

new document: ISO 15835-3.
A list of all the parts in the ISO 15835 series can be found on the ISO website.

Any feedback or questions on this document should be directed to the user’s national standards body. A

complete listing of these bodies can be found at www .iso .org/members .html.
iv © ISO 2018 – All rights reserved
---------------------- Page: 4 ----------------------
INTERNATIONAL STANDARD ISO 15835-1:2018(E)
Steels for the reinforcement of concrete — Reinforcement
couplers for mechanical splices of bars —
Part 1:
Requirements
1 Scope

This document specifies requirements for couplers for the mechanical splicing of steel reinforcing bars.

More onerous requirements can be specified by the customer.

This document is applicable to the continuous production of coupler components. It is intended to be

used with adequate control measures for the processing of reinforcing bars, i.e. the production of the

mechanical splice.

This document specifies requirements for couplers used for mechanical splices in reinforced concrete

structures under predominantly static loads. It specifies additional requirements for couplers used in

structures subject to high-cycle elastic fatigue loading and/or low-cycle elastic-plastic reverse loading.

NOTE ISO 15835-3 specifies the quantity of tests.

Compression-only couplers such as end-bearing sleeves are not covered by the ISO 15835 series.

2 Normative references

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements 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.

ISO 15630-1, Steel for the reinforcement and prestressing of concrete — Test methods — Part 1: Reinforcing

bars, wire rod and wire

ISO 15835-2:2018, Steels for the reinforcement of concrete — Reinforcement couplers for mechanical

splices of bars — Part 2: Test methods
ISO 16020, Steel for the reinforcement and prestressing of concrete — Vocabulary
3 Terms and definitions

For the purposes of this document, the terms and definitions given in ISO 16020 and the following apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

— ISO Online browsing platform: available at https: //www .iso .org/obp
— IEC Electropedia: available at http: //www .electropedia .org/
3.1
coupler length

actual length of the coupler including all load-transferring parts, if more than one, and including lock

nuts, if any
© ISO 2018 – All rights reserved 1
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ISO 15835-1:2018(E)
3.2
length of mechanical splice

coupler length plus two times the nominal bar diameter at both ends of the coupler

Note 1 to entry: This is a theoretical definition aimed at including the length of bar that could have been affected

by the bar-end preparation process.
3.3
mechanical splice

complete assembly of a coupler, including any additional intervening material or other components

providing a splice of two reinforcing bars
3.4
coupler

coupling sleeve or threaded coupler for mechanical splicing of reinforcing bars for the purpose of

providing transfer of axial tension and/or compression from one bar to the other where

— coupling sleeve is a device fitting over the ends of two reinforcing bars,

— threaded coupler is a threaded device for joining reinforcing bars with matching threads

3.5
slip

relative displacement between the components of a mechanical splice while being loaded to a defined

load level
3.6
slip measurement device

ensemble constituted by the extensometer and any system used to fasten it to the mechanical splice

3.7
batch

number of couplers of the same type and diameter, manufactured from the same cast of incoming

material, as a discrete unit defined by the manufacturer
3.8
lot

number of couplers of the same type and diameter, of various batches, delivered at the same time to the

same purchaser
4 Symbols
Table 1 — Symbols
Symbol Unit Designation
A % Percentage total elongation at maximum tensile
...

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