EN 1004:2004

Mobile access and working towers made of prefabricated elements - Materials, dimensions, design loads, safety and performance requirements

This document applies to the design of mobile access and working towers made of prefabricated elements with a height from 2,5 m to 12,0 m (indoors) and from 2,5 m to 8,0 m (outdoors).
This document:
-   gives guidelines for the choice of the main dimensions and stabilizing methods;
-   gives safety and performance requirements; and
-   gives some information on complete towers.
NOTE   In this document "indoors" means that the towers is not be exposed to wind, and "outdoors" means that the towers may be exposed to wind.

Fahrbare Arbeitsbühnen aus vorgefertigten Bauteilen - Werkstoffe, Maße, Lastannahmen und sicherheitstechnische Anforderungen

Dieses Dokument gilt für die Bemessung und Konstruktion von fahrbaren Arbeitsbühnen aus vorgefertigten Bauteilen mit einer Höhe von 2,5 m bis 12,0 m (innerhalb von Gebäuden) und von 2,5 m bis 8,0 m (außerhalb von Gebäuden).
Dieses Dokument:
¾   gibt Empfehlungen für die Auswahl der Hauptmaße und Stabilisierungsverfahren,
¾   stellt Sicherheits  und Leistungsanforderungen und
¾   enthält Angaben über die Gesamtkonstruktion der Arbeitsbühnen.
ANMERKUNG   In diesem Dokument bedeutet "innerhalb von Gebäuden", dass die Arbeitsbühnen keinen Windlasten ausgesetzt sein dürfen, während "außerhalb von Gebäuden" bedeutet, dass sie Windlasten ausgesetzt sein können.

Échafaudages roulants de service en éléments préfabriqués - Matériaux, dimensions, charges de calcul et exigences de sécurité

Ce document porte sur la conception des échafaudages roulants de service constitués d'éléments préfabriqués et présentant une hauteur comprise entre 2,5 m et 12,0 m (pour usage à l'intérieur) et entre 2,5 m et 8,0 m (pour usage à l'extérieur).
Ce document :
vise à orienter le choix des dimensions principales et des méthodes de stabilisation ;
définit les exigences de sécurité ; de performance et
donne un certain nombre d'informations concernant les tours complètes.
NOTE   Dans ce document, les termes "pour usage à l'intérieur" et "pour usage à l'extérieur" se réfèrent respectivement à des échafaudages qui ne sont pas exposés au vent et à des échafaudages qui sont exposés au vent.

Pomični delovni odri na kolesih iz predizdelanih tipskih elementov - Materiali, mere, obtežbe in varnostne zahteve

General Information

• Status: Withdrawn
• Publication Date: 21-Dec-2004
• Withdrawal Date: 13-Apr-2025
• ICS: 91.220 - Construction equipment
• Technical Committee: CEN/TC 53 - Temporary works equipment
• Drafting Committee: CEN/TC 53/WG 4 - Mobile access towers
• Current Stage: 9960 - Withdrawal effective - Withdrawal
• Start Date: 18-Nov-2020
• Completion Date: 14-Apr-2025
• Ref Project: SIST EN 1004:2005 - Mobile access and working towers made of prefabricated elements - Materials, dimensions, design loads, safety and performance requirements

Relations

• Replaces: HD 1004:1992 - Mobile access and working towers made of prefabricated elements - Materials, dimensions, design loads and safety requirements
• Effective Date: 22-Dec-2008
• Replaced By: EN 1004-1:2020 - Mobile access and working towers made of prefabricated elements - Part 1: Materials, dimensions, design loads, safety and performance requirements
• Effective Date: 25-Nov-2020

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Mobile access and working towers made of prefabricated elements - Materials, dimensions, design loads, safety and performance requirementsÉchafaudages roulants de service en éléments préfabriqués - Matériaux, dimensions, charges de calcul et exigences de sécuritéFahrbare Arbeitsbühnen aus vorgefertigten Bauteilen - Werkstoffe, Maße, Lastannahmen und sicherheitstechnische AnforderungenTa slovenski standard je istoveten z:EN 1004:2004SIST EN 1004:2005en91.220ICS:SIST HD 1004:20001DGRPHãþDSLOVENSKI
STANDARDSIST EN 1004:200501-marec-2005

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 1004
December 2004 ICS 91.220 Supersedes HD 1004:1992 English version
Mobile access and working towers made of prefabricated elements - Materials, dimensions, design loads, safety and performance requirements
Échafaudages roulants de service en éléments préfabriqués - Matériaux, dimensions, charges de calcul et exigences de sécurité
Fahrbare Arbeitsbühnen aus vorgefertigten Bauteilen - Werkstoffe, Maße, Lastannahmen und sicherheitstechnische Anforderungen This European Standard was approved by CEN on 12 November 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.
EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36
B-1050 Brussels © 2004 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1004:2004: E

Stiffness test on complete tower structure.27 Annex B (informative)
National A-deviations.30 Bibliography.31

This document supersedes HD 1004:1992. The development of mobile access and working towers system is from two roots:  scaffold manufacturers placed prefabricated unanchored scaffolds on four legs and castors and  ladder manufacturers began to construct mobile access towers with light-weight ladders using aluminium frames and castors. Taking this into account, CEN/TC53 decided in 1980 to standardize the manufacture of mobile access and working towers in parallel with the European standardization of prefabricated service and working scaffolds EN 12810-2 and EN 12811-3. For materials, this document refers only to valid documents. However, a large stock of equipment made of materials conforming to documents no longer valid is in use. This document does not cover this equipment. During discussion of the draft it was noted that the average height of people is increasing and that consideration will have to be given in later editions to altering vertical dimensions. 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.

mobile access and working towers scaffold structures which:  are capable of being used free-standing;  have one or more working platforms;  are assembled using prefabricated components;  have the dimensions fixed by the design;  have normally four legs with at least four castors;  are stable, by supports on the ground and if necessary by support to a vertical construction by wall strut 3.2
height (H) distance from the ground to the upper surface of the top platform 3.3
castor wheel swivelling wheel secured to the base of a member to enable the tower to be moved 3.4
adjustable leg incorporated into the structure only for plumbing a tower when situated on uneven or sloping ground. An adjustable leg may be fitted with either a castor wheel or a base plate 3.5
platform component unit of platform that supports a load on its own 3.6
bracing member means used to stiffen the structure 3.7
outrigger component that increases the effective base dimensions of a tower, with provision for the attachment of a castor 3.8
stabilizer component that increases the effective base dimensions of a tower, without provisions for the attachment of a castor 3.9
ballast weights placed at the base of the tower to increase its resistance to overturning

wall strut means for providing compressive restraint to prevent a tower overturning. It is normally a horizontal tubular member, one end of which is coupled to the tower, while the other end rests against a wall or other structure 3.11
stairway means of access intended for persons carrying tools or materials 3.12
stairladder means of access intended for persons not carrying tools or materials 3.13
inclined ladder means of access intended for persons not carrying tools or materials with an inclination from 60° to 75° 3.14
vertical ladder means of access intended for persons not carrying tools or materials with an inclination of 90° 3.15
platform one or more platform components forming a working area 3.16
length (L) greater of the two plane dimensions at the platform level (see Figure 1) 3.17
width (W) lesser of the two plane dimensions at the platform level (see Figure 1)
Figure 1 —Width (W) and length (L)

4.2 Access classes Four options for access to the platform are described in 7.6. 5 Designation The following data are required for the designation of all prefabricated mobile access and working towers: a) class of uniformly distributed load (see 4.1); b) maximum height outdoors/indoors; c) access classes (see 4.2). EXAMPLE Tower
EN 1004
8/12
A B X X class 2 maximum height outdoors 8 m indoors 12 m access through stairway and stairladder 6 Materials Materials shall fulfil the requirements given in documents where design data are provided. Information for the most commonly used materials are given in EN 12811-2. Steel shall be protected by one of the methods given in EN 12811-2, Clause 8 or zinc coated with an average thickness of 15 µm.

7.3 Apertures within platforms The aperture shall be as small as practicable, and it shall have a minimum clear opening of: 0,40 m wide x 0,60 m long Apertures in platforms shall not exceed 25 mm in width. This does not apply to apertures like hand holes in hatches. Access to a working platform through an aperture in a platform shall be provided with means to prevent falling through.

Figure 2 — Side protection dimensions Side protection components shall be incapable of removal except by direct intentional action. It shall be possible to erect protection at platform edges comprising: a) at least one principal guardrail and intermediate side protection; b) toe-board;
7.4.2 Principal guardrail The principal guardrail shall be fixed so that its top surface is 1 m or more above the adjacent level of the working area everywhere (minimum height 950 mm).1)
1) See A-deviation.
35 ° ≤ . ≤ 55 °; - vertical step rise
190 mm ≤ t ≤ 250 mm;
- Minimum step depth
d = 125 mm; - Minimum clear width
400 mm; - Horizontal gap between steps
0 ≤ g ≤ 50 mm;
Figure 3 — Dimensions of stairway

35 ° ≤ . ≤ 55 °; - Vertical step rise
150 mm ≤ t ≤
250 mm; - Minimum step depth
d = 80 mm; - Minimum clear width
280 mm; - Horizontal gap between steps
0 ≤ g ≤ 160 mm.
Figure 4 — Dimensions of stairladder 7.6.3.4
Requirements of inclined ladder class C (see Figure 5) - Inclination
60 ° ≤ . ≤ 75 °; - Step spacing
230 mm ≤ t ≤ 300 mm; - Step depth
d > 80 mm; - Rung spacing
230 mm ≤ t ≤ 300 mm; - Rung depth
20 mm ≤ d ≤ 80 mm; - Minimum clear width
280 mm; - Maximum vertical distance between different platforms
4,2 m; - Maximum distance between the ground and the first platform 4,6 m.
Figure 5 — Dimensions of inclined ladder

230 mm ≤ t ≤ 300 mm; - Rung depth or diameter
20 mm ≤ d ≤ 51 mm; - Minimum clear width
280 mm; - Maximum vertical distance between different platforms
4,2 m; - Maximum distance between the ground and the first platform 4,6 m.
a) Separate ladder
b) Integral ladder Figure 6 — Dimensions of vertical ladder 7.7 Means for stabilizing 7.7.1 Stabilizers and outriggers The stabilizers and outriggers of a tower shall be purpose designed as component of the main structure and shall provide means of adjustment to ensure contact with the ground. The method of fixing the stabilizer or outrigger to the tower shall have adequate strength and shall be such that the reaction loads in the stabilizer or outrigger are transferred to the tower without slip, rotation, or other movement of the stabilizer or outrigger. 7.7.2 Ballast If ballast is necessary, it shall be securely positioned and made of rigid materials such as steel or concrete, but excluding liquids or granular materials. 7.8 Connections 7.8.1 General Each connection device shall be effective, easy to monitor and the components shall be easy to assemble. The securing of components forming part of the structure of the scaffold and side protection components shall make them incapable of removal except by direct intentional action.

1,5 kN/m²;  class 3 :
2,0 kN/m². 8.2.1.3 Load resulting from an inclination of 1 % Vertical loads to be taken into consideration are:
- nominal self-weight as given (see 8.2.1.1);
- vertical service loads as given (see 8.2.1.2). 8.2.1.4 Minimum vertical service load on the structure, equally distributed on 4 legs P = 5,0 kN ;
NOTE P can be larger than 5,0 KN in accordance with the uniformly distributed loads as given in Table 4. 8.2.2. Horizontal loads 8.2.2.1
Horizontal service load on the topmost platform On the level of the platforms with length L :  L ≤ 4,0 m 0,3 kN;  L > 4,0 m 2 x 0,3 kN. 8.2.2.2
Horizontal design loads on all component
...