ISO 834-13:2019
(Main)Fire-resistance tests — Elements of building construction — Part 13: Requirements for the testing and assessment of applied fire protection to steel beams with web openings
Fire-resistance tests — Elements of building construction — Part 13: Requirements for the testing and assessment of applied fire protection to steel beams with web openings
This document specifies a test and assessment method for determining the contribution made by fire protection systems to the fire resistance of structural steel beams, I and H sections, in the horizontal plane containing openings in the web which may affect the structural performance of the beam. It is applicable to beams subjected to three or four sided fire exposure. For any cellular beam with a single web opening or where the web openings are considered to be of small diameter in relation to the web depth the applicability of this document is intended to be determined by a structural engineer This document adopts the principle of establishing ratios of temperatures between and around openings in the web of a beam with the temperatures of a solid portion of that beam. This is with the intention that these data can be utilised within a structural model to derive the value and location of the associated limiting temperature of the beam at the fire limit state. The limiting temperature is then used in conjunction with data for the fire protection material determined from ISO 834-10 and ISO 834-11 to determine the necessary thickness of fire protection material for beams with web openings. This document applies to fire protection materials that have already been tested and assessed in accordance with ISO 834-10 and ISO 834-11 and is not intended to be used in isolation. It covers fire protection systems that include both passive and reactive materials which follow the section profile as defined in this document. This document includes the use of a multi-temperature analysis (MTA) derived from ISO 834-11 as the basis for determining the thickness of fire protection for beams with web openings. This document contains an assessment method, which prescribes how the analysis of the test data should be made and gives guidance on the procedures that could be undertaken. The assessment procedure can be used to establish: a) The thermal response of the fire protection system on cellular beams, (the thermal performance) on the basis of the temperature data derived from testing unloaded steel sections. b) The temperature ratio between the web post and the web reference temperature, which will vary depending on the web post width. c) The temperature ratio between points around the web openings and the web reference area. d) A structural model that can be used to derive limiting temperatures for cellular beams.
Essais de résistance au feu — Éléments de construction — Partie 13: Exigences pour les essais et l'évaluation de la protection contre l'incendie appliquée aux poutres en acier avec ouvertures dans l'âme
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INTERNATIONAL ISO
STANDARD 834-13
First edition
2019-05
Fire-resistance tests — Elements of
building construction —
Part 13:
Requirements for the testing and
assessment of applied fire protection
to steel beams with web openings
Essais de résistance au feu — Éléments de construction —
Partie 13: Exigences pour les essais et l'évaluation de la protection
contre l'incendie appliquée aux poutres en acier avec ouvertures
dans l'âme
Reference number
©
ISO 2019
© ISO 2019
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
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2019 – All rights reserved
Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Symbols and abbreviated terms . 4
5 Test equipment. 4
5.1 General . 4
5.2 Furnace . 4
5.3 Test conditions . 4
6 Test specimens. 4
6.1 General . 4
6.2 Precautions against erroneous results . 4
6.3 Construction of steel test specimens . 4
6.3.1 Cellular beam test sections . 4
6.3.2 Application of the fire protection to the test sections . 8
6.4 Composition of test specimen component materials . 8
6.4.1 Steel sections . 8
6.4.2 Fire protection materials . 9
6.4.3 Fire protection thickness requirements .10
6.5 Selection of test specimens — Test packages .11
7 Installation of test specimens .12
7.1 Fixing .12
7.2 Installation pattern .13
7.3 Furnace load .14
7.4 Conditioning of the test specimens .14
8 Application of instrumentation .15
8.1 General .15
8.2 Instrumentation for measurement of furnace temperature .15
8.2.1 General.15
8.2.2 Furnace temperature in the region of test specimens .15
8.3 Instrumentation for measurement and determination of steel temperatures .15
8.3.1 Location of thermocouples attached to the beams .15
8.3.2 Location of web reference thermocouples .15
8.4 Instrumentation for measurement of pressure .15
9 Test procedure .15
9.1 General .15
9.2 Furnace temperature and pressure .15
9.3 Temperature of steelwork .16
9.4 Observations .16
9.5 Termination of test .16
10 Test results .16
10.1 Acceptability of test results .16
10.2 Test report and presentation of test results .16
11 Assessment .17
11.1 General .17
11.2 Determination of web post and web reference temperatures .17
11.2.1 Calculation of web post temperatures .17
11.2.2 Calculation of web reference temperature .17
11.3 Determination of web-post lines .18
11.4 Additional thermal modification factors .19
11.5 Location of limiting temperatures .20
11.6 Determination of the elemental multi-temperature analysis (EMTA) .20
12 Assessment report .21
13 Limits of the applicability of the results of the assessment.22
Annex A (informative) Determination of product thickness on beams with web openings .23
Annex B (informative) Logic for determining the web post average temperature .27
Bibliography .29
iv © ISO 2019 – All rights reserved
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.
This document was prepared by Technical Committee ISO/TC 92, Fire safety, Subcommittee SC 2, Fire
containment.
A list of all parts in the ISO 834 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.
Introduction
Background
Recent developments in steel construction have seen the introduction of cellular beams consisting
of openings of various sizes and shapes cut in the web of the steel section. These offer a number of
advantages over conventional beams without openings such as lighter/less steel required to provide the
same structural performance and the ability to accommodate services within the depth of the section.
An opening in the web of
...
INTERNATIONAL ISO
STANDARD 834-13
First edition
2019-05
Fire-resistance tests — Elements of
building construction —
Part 13:
Requirements for the testing and
assessment of applied fire protection
to steel beams with web openings
Essais de résistance au feu — Éléments de construction —
Partie 13: Exigences pour les essais et l'évaluation de la protection
contre l'incendie appliquée aux poutres en acier avec ouvertures
dans l'âme
Reference number
©
ISO 2019
© ISO 2019
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
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2019 – All rights reserved
Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Symbols and abbreviated terms . 4
5 Test equipment. 4
5.1 General . 4
5.2 Furnace . 4
5.3 Test conditions . 4
6 Test specimens. 4
6.1 General . 4
6.2 Precautions against erroneous results . 4
6.3 Construction of steel test specimens . 4
6.3.1 Cellular beam test sections . 4
6.3.2 Application of the fire protection to the test sections . 8
6.4 Composition of test specimen component materials . 8
6.4.1 Steel sections . 8
6.4.2 Fire protection materials . 9
6.4.3 Fire protection thickness requirements .10
6.5 Selection of test specimens — Test packages .11
7 Installation of test specimens .12
7.1 Fixing .12
7.2 Installation pattern .13
7.3 Furnace load .14
7.4 Conditioning of the test specimens .14
8 Application of instrumentation .15
8.1 General .15
8.2 Instrumentation for measurement of furnace temperature .15
8.2.1 General.15
8.2.2 Furnace temperature in the region of test specimens .15
8.3 Instrumentation for measurement and determination of steel temperatures .15
8.3.1 Location of thermocouples attached to the beams .15
8.3.2 Location of web reference thermocouples .15
8.4 Instrumentation for measurement of pressure .15
9 Test procedure .15
9.1 General .15
9.2 Furnace temperature and pressure .15
9.3 Temperature of steelwork .16
9.4 Observations .16
9.5 Termination of test .16
10 Test results .16
10.1 Acceptability of test results .16
10.2 Test report and presentation of test results .16
11 Assessment .17
11.1 General .17
11.2 Determination of web post and web reference temperatures .17
11.2.1 Calculation of web post temperatures .17
11.2.2 Calculation of web reference temperature .17
11.3 Determination of web-post lines .18
11.4 Additional thermal modification factors .19
11.5 Location of limiting temperatures .20
11.6 Determination of the elemental multi-temperature analysis (EMTA) .20
12 Assessment report .21
13 Limits of the applicability of the results of the assessment.22
Annex A (informative) Determination of product thickness on beams with web openings .23
Annex B (informative) Logic for determining the web post average temperature .27
Bibliography .29
iv © ISO 2019 – All rights reserved
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.
This document was prepared by Technical Committee ISO/TC 92, Fire safety, Subcommittee SC 2, Fire
containment.
A list of all parts in the ISO 834 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.
Introduction
Background
Recent developments in steel construction have seen the introduction of cellular beams consisting
of openings of various sizes and shapes cut in the web of the steel section. These offer a number of
advantages over conventional beams without openings such as lighter/less steel required to provide the
same structural performance and the ability to accommodate services within the depth of the section.
An opening in the web of
...
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