EN 1365-6:2004

SLOVENSKI STANDARD
01-maj-2005
Preskusi požarne odpornosti nosilnih elementov – 6. del: Stopnice
Fire resistance tests for loadbearing elements - Part 6: Stairs
Feuerwiderstandsprüfungen für tragende Bauteile - Teil 5: Treppen
Essais de résistance au feu des éléments porteurs - Partie 5: Escaliers
Ta slovenski standard je istoveten z: EN 1365-6:2004
ICS:
13.220.50 Požarna odpornost Fire-resistance of building
gradbenih materialov in materials and elements
elementov
91.060.30 Stropi. Tla. Stopnice Ceilings. Floors. Stairs
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 1365-6
NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2004
ICS 13.220.50
English version
Fire resistance tests for loadbearing elements - Part 6: Stairs
Essais de résistance au feu des éléments porteurs - Partie Feuerwiderstandsprüfungen für tragende Bauteile - Teil 5:
5: Escaliers Treppen
This European Standard was approved by CEN on 9 July 2004.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national
standards may be obtained on application to the Central Secretariat or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,
Slovenia, Spain, Sweden, Switzerland and United Kingdom.
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© 2004 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 1365-6:2004: E
worldwide for CEN national Members.

Contents
page
Foreword.3
Introduction .4
1 Scope.5
2 Normative references.5
3 Terms and definitions .5
4 Test equipment.6
5 Test conditions.6
6 Test specimen.6
6.1 General.6
6.2 Size.6
6.3 Number.6
6.4 Design.7
6.5 Exposure.7
6.6 Construction.7
6.7 Verification.7
7 Installation of test specimen .7
7.1 General.7
7.2 Loading and restraint .7
8 Conditioning.8
9 Application of instrumentation.8
9.1 Furnace thermocouples (plate thermometers) .8
9.2 Pressure.8
9.3 Deflection.8
10 Test procedure.8
11 Performance criteria.8
12 Test report.9
13 Field of direct application of test results .9
Annex A (informative)  Examples of different stairs.10
Annex B (informative)  Use of results from tests on components in classification of stairs.17
B.1 Introduction.17
B.2 Use of test results.17

Foreword
This document (EN 1365-6:2004) has been prepared by Technical Committee CEN/TC 127 “Fire safety in
buildings”, the secretariat of which is held by BSI.
This European Standard shall be given the status of a national standard, either by publication of an identical
text or by endorsement, at the latest by May 2005, and conflicting national standards shall be withdrawn at the
latest by May 2005.
This standard has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association, and supports essential requirements of the Construction Products Directive.
EN 1365 ‘Fire resistance tests for loadbearing elements’ consists of the following parts:
Part 1: Walls,
Part 2: Floors and roofs,
Part 3: Beams,
Part 4: Columns,
Part 5: Balconies and walkways,
Part 6: Stairs.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland
and United Kingdom.
Introduction
The purpose of this test is to measure the ability of a representative specimen of a stair or a part of it to
maintain its loadbearing capacity when exposed to fire according to EN 1363-1.
Caution
The attention of all persons concerned with managing and carrying out this fire resistance test EN 1365-6 is
drawn to the fact that fire testing can be hazardous and that there is a possibility that toxic and/or harmful
smoke and gases can be evolved during the test. Mechanical and operational hazards can also arise during
the construction of the test elements or structures, their testing and disposal of test residues.
An assessment of all potential hazards and risks to health should be made and safety precautions should be
identified and provided. Written safety instructions should be issued. Appropriate training should be given to
relevant personnel. Laboratory personnel should ensure that they follow written safety instructions at all times.
1 Scope
This Part of EN 1365 specifies a method for determining the fire resistance of stairs, with or without applied
fire protection systems in respect of loadbearing capacity and with no separating function. This document is
used in conjunction with EN 1363-1.
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.
EN 1363-1:1999, Fire resistance tests — Part 1: General requirements
EN 1365-2, Fire resistance tests for loadbearing elements — Part 2: Floors and roofs
EN 1365-3, Fire resistance tests for loadbearing elements — Part 3: Beams
EN 1365-4, Fire resistance tests for loadbearing elements — Part 4: Columns
EN ISO 13943:2000, Fire safety — Vocabulary (ISO 13943:2000)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 1363-1:1999 and EN
ISO 13943:2000, and the following apply.
3.1
stair
succession of horizontal stages (steps or landings) rising at a pitch which makes it possible to pass on foot to
other levels
NOTE Figures of different stairs are given in Annex A.
3.2
landing
level platform at the end of or between two flights of stairs. It can be part of the stair or the floor
3.3
intermediate landing
landing inserted between two floors
3.4
string
inclined member supporting the end of steps
3.5
step
part of a stair consisting of a tread and possibly a riser
3.6
riser
part closing the front face of the step
3.7
tread
horizontal component or the upper surface of a step
3.8
balustrade
railing supported by posts or pillars forming a parapet to a stair and designed to prevent the user falling over
the side
3.9
flight
unbroken series of steps between two landings
4 Test equipment
The test equipment shall be as specified in EN 1363-1.
5 Test conditions
The heating conditions, the furnace atmosphere and loading conditions shall conform to those specified in
EN 1363-1.
The pressure condition shall be established 100 mm below the underside of the furnace cover slab.
6 Test specimen
6.1 General
The test specimen is the complete stair or part of the stair chosen to represent the most onerous conditions of
failure.
If the fire resistance of a component will not be negatively influenced by the complete system, then the
complete stair can be represented by a part of the complete system and tests may be carried out on that part
according to EN 1365-2, EN 1365-3 and/or EN 1365-4.
6.2 Size
The test specimen shall be full size unless the actual size is larger than can be accommodated in the furnace.
When the actual size cannot be accommodated in the furnace, the height of the test specimen shall be at
least 3 m and the dimensions (length and width) of the horizontal projection at least 4 m × 3 m.
A part of a stair shall be tested in such a way that the result is representative for the entire construction. A
string shall be tested as a beam with a declination as in practice with the size specified in EN 1365-3. A step
shall be tested with maximum span as a single supported beam with the size specified in EN 1365-3. A
landing shall be tested as a floor with the size specified in EN 1365-2. A column shall be tested with the size
specified in EN 1365-4.
6.3 Number
One test specimen shall be tested for a given set of support, restraint, loading and exposure conditions.
6.4 Design
When testing stairs, part of stairs or components, fixings, joints, connections, etc. (e.g. step to string, step to
tensile member) shall be incorporated as in use. If the balustrade is part of the loadbearing system it shall be
included in the test specimen (see Figure A.3).
6.5 Exposure
The test specimen shall be exposed to fire according to its installation position in the building and the heating
conditions shall be as specified in Clause 5. When testing components of a stair, a string, a step and a column,
these shall normally be tested exposed to fire on four sides and a landing exposed from both sides. When
testing a full stair specimen which has no separating function, the specimen shall be tested exposed to fire
from all sides.
6.6 Construction
The test specimen shall be constructed as described in EN 1363-1.
6.7 Verification
Verification of the test specimen shall be carried out as described in EN 1363-1.
7 Installation of test specimen
7.1 General
The test specimen (a stair, a part of a stair or a component) shall
...