oSIST prEN 17879:2022

Event structures - Safety requirements

This European standard  specifies the minimum requirements necessary to ensure the safe design, calculation, manufacture, assembly, operation, disassembly, inspection and maintenance of the following, but not limited to: indoor and outdoor structures e.g.  Stage roofs, stage floors, follow spot towers,  PA towers, LED support structures,  Bespoke structures, hospitality structures, temporary spectator facilities. The above hereafter called event structures which are intended to be installed and dismantled specifically for an event.

Event-Strukturen - Sicherheit

Structures événementielles - Exigences de sécurité

Le présent document spécifie les exigences minimales nécessaires pour la conception, le calcul, la fabrication, le montage, l'exploitation, le démontage, l'inspection et la maintenance en toute sécurité des installations suivantes, sans toutefois s'y limiter :
-   structures, par exemple toits de scènes, planchers de scènes, projecteurs de poursuite sur tour, tours de sonorisation ;
-   structures de support LED ;
-   structures événementielles ponctuelles ;
-   structures d'accueil ;
-   installations temporaires pour spectateurs.
Les installations susmentionnées, ci-après désignées par le terme « structures événementielles », sont des structures destinées à être montées et démontées spécifiquement pour un événement donné.
Le présent document ne couvre pas :
-   les installations pour spectateurs selon la série EN 13200 ;
-   les structures temporaires, tentes, sécurité, selon l'EN 13782 ;
-   les machines et structures pour fêtes foraines et parcs d'attraction, selon la série EN 13814 ;
-   les équipements pour travaux temporaires couverts par le CEN/TC 53 ;
-   les équipements de jeu gonflable, exigences de sécurité et méthodes d'essai selon l'EN 14960 ;
-   les technologies du spectacle décrites par le CEN/TC 433.
NOTE   Le présent document ne s'applique pas aux structures événementielles qui ont été conçues, fabriquées, mises sur le marché ou mises en service avant la date de publication du présent document par le CEN.

Strukture dogodkov - Varnostne zahteve

General Information

• Status: Not Published
• Public Enquiry End Date: 04-Oct-2022
• ICS: 91.040.99 - Other buildings
• ICS: 97.200.10 - Theatre, stage and studio equipment
• Technical Committee: I13 - Imaginarni 13
• Current Stage: 4020 - Public enquire (PE) (Adopted Project)
• Start Date: 20-Jul-2022
• Due Date: 07-Dec-2022
• Completion Date: 06-Oct-2022
• Mandate: M/233 - Mandate to CEN and CENELEC for standardization in the field of safety of equipment for fairgrounds and amusement parks
• Ref Project: FprEN 17879 - Event structures - Safety requirements

Standards Content (Sample)

SLOVENSKI STANDARD
oSIST prEN 17879:2022
01-september-2022
Strukture dogodkov - Varnostne zahteve
Event structures - Safety requirements
Event-Strukturen - Sicherheit
Structures événementielles - Exigences de sécurité
Ta slovenski standard je istoveten z: prEN 17879
ICS:
91.040.99 Druge stavbe Other buildings
97.200.10 Gledališka, odrska in Theatre, stage and studio
studijska oprema ter delovne equipment
postaje
oSIST prEN 17879:2022 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN 17879:2022

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oSIST prEN 17879:2022


DRAFT
EUROPEAN STANDARD
prEN 17879
NORME EUROPÉENNE

EUROPÄISCHE NORM

July 2022
ICS 91.040.99; 97.200.10
English Version

Event structures - Safety requirements
Structures événementielles - Exigences de sécurité Event-Strukturen - Sicherheit
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 152.

If this draft becomes a European Standard, 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.

This draft European Standard was established by CEN 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 CEN-CENELEC
Management Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.

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 supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.


EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 17879:2022 E
worldwide for CEN national Members.

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Contents Page

European foreword . 5
Introduction . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 8
4 General requirements for design, analysis, documentation and verification . 11
4.1 General . 11
4.2 Design . 11
4.2.1 Selection of structural materials . 11
4.2.2 Selection of covering materials . 11
4.2.3 Design Classes . 11
4.2.4 Durability . 12
4.3 Principles of analyses . 12
4.4 Documentation . 12
4.4.1 Design documents . 12
4.4.2 Description of construction, assembly and operation . 12
4.4.3 Construction drawings . 12
4.5 Verification . 12
5 Design actions . 13
5.1 General . 13
5.2 Permanent actions. 13
5.3 Variable actions . 13
5.3.1 General . 13
5.3.2 Actions from entertainment technology equipment and decoration objects . 13
5.3.3 Favourable and unfavourable actions . 14
5.3.4 Imposed loads . 14
5.3.5 Wind loads . 16
5.3.6 Peak velocity pressure profile . 18
5.3.7 Equivalent load at indoor situation . 18
5.3.8 Aerodynamic factors for event structures . 19
5.3.9 Wind on free standing double curved load bearing membrane structures . 19
5.3.10 Wind loading for existing event structures . 19
5.4 Snow loads . 20
5.5 Seismic forces . 20
5.6 Load combinations . 20
6 Verification of strength and stability . 21
6.1 General . 21
6.2 Verification of strength of materials and components. 22
6.2.1 General . 22
6.2.2 Resistance design values for materials . 22
6.2.3 Resistance design values for structural components . 22
6.2.4 Supports . 24
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6.2.5 Spreader plates and packing plates . 24
6.3 Verification of stability . 24
6.3.1 General . 24
6.3.2 Safety against overturning . 24
6.3.3 Safety against sliding . 25
6.3.4 Safety against lifting . 26
7 Structural requirements . 26
7.1 Ballast and permanent loads to be used for stabilizing the structures . 26
7.2 Membrane cladding . 26
7.2.1 Ponding and accumulation . 26
7.2.2 Use of permeable membranes . 26
7.2.3 Wind load reduction . 27
7.2.4 Tensile membrane structure . 27
7.2.5 Textile connections . 27
7.2.6 Forces caused by wind on fabric cladding . 27
7.3 Prefabricated scaffolding components . 27
7.4 Ground anchorages . 28
7.5 Fasteners and couplers . 28
7.6 Tent structures used as partially opened event structures . 28
7.7 Ancillary entertainment equipment . 28
7.8 Temporary spectator facility . 28
7.8.1 General . 28
7.8.2 Temporary (grand)stand . 28
7.8.3 Guardrails (category C2 and C3) . 29
7.8.4 Access routes to public spectator facilities . 29
7.9 Burning behaviour . 29
7.10 Equipotential bonding . 29
7.11 Structural interface of assemblies . 30
8 Manufacture and supply. 30
8.1 General . 30
8.2 Certificates . 30
8.3 Observation of the design specification . 30
8.4 Description of installation and operation procedures . 30
9 Operation and ground and site conditions . 31
9.1 General . 31
9.2 Operation . 31
9.3 Ground and site conditions . 34
9.3.1 General . 34
9.3.2 Ground information . 34
9.3.3 Basic principles . 34
9.3.4 Ground bearing pressures . 35
9.3.5 Baseplates and spreaders . 36
9.3.6 Sloping ground . 36
9.3.7 Dewatering and site drainage . 36
9.3.8 Inspection ground- and site conditions . 37
10 Examination, approval, inspection and maintenance . 37
10.1 General . 37
10.2 Examination . 37
10.2.1 General . 37
10.2.2 Initial examination . 37
10.2.3 Regular examination . 37
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10.3 Approval . 37
10.3.1 General . 37
10.3.2 Initial approval . 37
10.3.3 Regular approval . 38
10.4 Inspection . 38
10.5 Maintenance . 38
Annex A (informative) Example of the determination of peak velocity pressure for one-off
event structures . 39
Annex B (informative) Technical documentation . 48
Bibliography. 50


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European foreword
This document (prEN 17879:2022) has been prepared by Technical Committee CEN/TC 152 “Fairground
and amusement park machinery and structures – Safety”, the secretariat of which is held by UNI.
This document is currently submitted to the CEN Enquiry.
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Introduction
The object of this document is to provide safety requirements for event structures. Examples of event
structures covered by this document are, but not limited to, stage roofs, stage walls, stage platforms,
support structures for entertainment technology equipment, technical accommodations, raised
platforms for public, bespoke structures. These safety requirements are aimed to safe-guard persons and
objects against damage caused by design, manufacturing and operation of these structures.
These safety requirements have been drawn up according to past experience and risk analysis. Existing
national rules concerning health and safety of workers remain untouched.
This document does not cover:
• Spectator facilities – EN 13200-series
• Temporary structure – Tents – safety by EN 13782
• Fairground and amusement park machinery and structures as per EN 13814 series
• Temporary works equipment covered by CEN/TC 53
• Inflatable play equipment-safety requirements and test methods as per EN 1460
• Entertainment Technology as described by CEN/TC 433
• Entertainment Technology – EN 17206 lifting and loadbearing equipment for stages and other
production areas within the entertainment industry
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1 Scope
This document specifies the minimum requirements necessary to ensure the safe design, calculation,
manufacture, assembly, operation, disassembly, inspection and maintenance of the following, but not
limited to: indoor and outdoor structures e.g. Stage roofs, stage floors, follow spot towers, PA towers, LED
support structures, one-off event structures, hospitality structures, temporary spectator facilities. The
above hereafter called event structures which are intended to be installed and dismantled specifically for
an event.
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.
EN 1090 (all parts), Execution of steel structures and aluminium structures
EN 1990:2002, Eurocode - Basis of structural design
EN 1991-1-3, Eurocode 1 - Actions on structures - Part 1-3: General actions - Snow loads
EN 1991-1-4, Eurocode 1: Actions on structures - Part 1-4: General actions - Wind actions
EN 1993-1-1:2005, Eurocode 3: Design of steel structures - Part 1-1: General rules and rules for buildings
EN 1993-1-8, Eurocode 3: Design of steel structures - Part 1-8: Design of joints
EN 1997-1, Eurocode 7: Geotechnical design - Part 1: General rules
EN 1999-1-1:2007, Eurocode 9: Design of aluminium structures - Part 1-1: General structural rules
EN 12811-1, Temporary works equipment - Part 1: Scaffolds - Performance requirements and general
design
EN 13200-6, Spectator facilities - Part 6: Demountable stands
EN 13501-1, Fire classification of construction products and building elements - Part 1: Classification using
data from reaction to fire tests
EN 13782, Temporary structure - Tents - Safety
EN 15619, Rubber or plastic coated fabrics - Safety of temporary structures (tents) - Specification for coated
fabrics intended for tents and related structures
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3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.1
active viewing zone
part of the viewing platform where a crowd can congregate and has a clear line of sight to the external
focus point
Note 1 to entry: The minimum depth of an active viewing zone is 1m.
3.2
analysis of use
documented assessment of the use of a structure or a part of it in order to determine the necessary safety
requirements, maximum loads, etc
Note 1 to entry: Examples are, but not limited to; extremely heavy scenery, excessive point loads, moving objects,
performance areas with guaranteed low loads, etc.
3.3
approval
confirmation by a qualified person that the examination has been carried out with a positive result
Note 1 to entry: The qualified person shall be an independent expert, whose qualification could be defined by
national regulations.
3.4
depending action
action that cannot be considered without the presence of another action
Note 1 to entry: Example; if wind load on a video screen is part of a load combination, the weight of the screen
should also be taken in account.
3.5
event structure
structure to be set-up for no more than 90 days to be used for events
Note 1 to entry: For the purpose of readability throughout this standard the “term” structure refers to an event
structure unless otherwise stated.
3.6
event
public or private occasion at which visitors are present
Note 1 to entry: Examples are, but not limited to: artistic performances, product presentations, theatre shows,
concerts, festivals, exhibitions, parties, meetings.
3.7
examination
comparison of the technical documentation and the set-up event structure
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3.8
exclusive action
action that cannot occur in combination with another (specific) action
Note 1 to entry: As an example; wind loads from the front and the back should not be taken in account in the same
load combination.
3.9
external focus point
place outside of the structure such as a sport event or (music) performance causing the risk of public
gathering on active viewing zone of platform for viewing
3.10
guardrail
physical barrier to protect persons from falling off raised areas (e.g. stages or platforms)
3.11
handrail
upper horizontal ledger of the guardrail
3.12
initial approval
design and calculation review, verification, examinations and tests necessary for event structure
operation
3.13
inspection
visual check for intactness of all components of an event structure carried out by a competent person
3.14
maintenance
measures to ensure the intactness of all components of an event structure following the instructions
given in the technical documentation
Note 1 to entry: Examples of maintenance are adjustment, cleaning, regular replacement etc.
3.15
modification
any alteration of an event structure which results in a departure from the original design specification
3.16
one-off event structure
event structure designed to be used for one specific event only
3.17
Operational Management Plan (OMP)
written compilation of all measures to be taken to provide safe operation of an event structure including
set-up, operation, and dismantling
3.18
Operational Wind Speed (OWS)
shall be noticed as a maximum allowable 3 second gust wind speed
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3.19
point load
vertical load of at least 1,5 kN with a square contact area with a side length of 50 mm in the most
unfavourable position shall be assumed
3.20
repair
restorations of worn, damaged or decayed parts back to the original design specification
3.21
roof system
event structure covering a stage or spectator facilities in order to shelter performers, equipment and
public from weather conditions
3.22
stage
raised platform intended to be used for performing and to support equipment
3.23
set-up
assembling of an event structure on site
3.24
service area
area where publicly accessible utilities are found including toilets, first aid, cafeterias, souvenirs shop,
including passages, concourses, ramps and stairs between the viewing area and the external area
3.25
sightline
line joining the eye of a spectator and the point of interest on the activity area without optical interruption
3.26
temporary (grand)stand
temporary, tiered structure providing a viewing area, set-up with the intention to provide a sightline for
every spectator on the structure by having just one row of standing or seated spectators per tier
3.27
temporary spectator facility
structure accessible for visitors of the event, possibly also providing area(s) designated for spectators to
congregation/dance/interact without having a sightline
Note 1 to entry: This includes structures in service areas, where public accessible utilities are found.
3.28
user
person or organization that has the general control of an Event Structure
Note 1 to entry: The user can be a natural or legal person, which is the owner of the event structure or a
concessionaire or tenant, to which the owner has given control over the Event structure for a certain time (event
time, installation time).
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3.29
Wind Management Plan (WMP)
written compilation of all measures to be taken to maintain personal safety and structural safety of the
event structure as part of an operational management plan
4 General requirements for design, analysis, documentation and verification
4.1 General
Materials used in event structures shall comply to the specifications defined in the relevant European
Standards.
Materials not complying to European Standards may be used if their serviceability has been proven, e.g.
by European Technical Approval (ETA) or necessary characteristic data are available.
4.2 Design
4.2.1 Selection of structural materials
Structural materials should be at least fire retardant according to EN 13501-1 class B—S2, D0 or
equivalent national standards on fire behaviour.
4.2.2 Selection of covering materials
Rubber and plastic coated fabrics shall comply to EN 15619. A corresponding declaration or certificate
shall be provided by the supplier.
...