EN 12999:2002/A2:2006
(Amendment)Cranes - Loader cranes
Cranes - Loader cranes
This European Standard specifies minimum requirements for design, calculation, examinations and tests of hydraulic powered loader cranes and their mountings onto vehicles or static foundations. Note: There are in the process of development a number of standards on design and other matters that will require incorporation into this standard when they are completed. This standard does not apply to loader cranes used on board ships and does not specify requirements for the lifting of persons with loader cranes. The hazards covered by this EN are identified in clause 4.
Krane - Ladekrane
Appareils de levage à charge suspendue - Grues de chargement
Dvigala (žerjavi) – Nakladalna dvigala
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-oktober-2006
Dvigala (žerjavi) – Nakladalna dvigala
Cranes - Loader cranes
Krane - Ladekrane
Appareils de levage a charge suspendue - Grues de chargement
Ta slovenski standard je istoveten z: EN 12999:2002/A2:2006
ICS:
53.020.20 Dvigala Cranes
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD
EN 12999:2002/A2
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2006
ICS 53.020.20
English Version
Cranes - Loader cranes
Appareils de levage à charge suspendue - Grues de Krane - Ladekrane
chargement
This amendment A2 modifies the European Standard EN 12999:2002; it was approved by CEN on 16 March 2006.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for inclusion of this
amendment into the relevant 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 amendment 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, Romania,
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
© 2006 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 12999:2002/A2:2006: E
worldwide for CEN national Members.
Contents Page
Foreword .3
2 Normative references .4
5.2 Structural calculations .5
5.2.1 Information to be given in the calculation.5
5.2.2 Dynamic factors .5
5.2.3 Loads and forces .6
5.2.4 Load combinations .7
5.3 Stress analysis.8
5.4 Mechanical arrangements .8
5.4.3 Securing for transport .9
5.8 Control stations.9
5.8.1 General .9
5.10 Installation.10
5.10.2 Mounting.10
6.1 General .10
6.2 Testing and test procedures .10
6.2.5 Stability test.10
7.2 Manuals .11
7.2.3 Operator’s manual .11
Annex P (informative) Explanatory note to clause 5.4.1.1.12
Foreword
This document (EN 12999:2002/A2:2006) has been prepared by Technical Committee CEN/TC 147 “Cranes -
Safety”, the secretariat of which is held by BSI.
This Amendment to the European Standard EN 12999:2002 shall be given the status of a national standard,
either by publication of an identical text or by endorsement, at the latest by October 2006, and conflicting
national standards shall be withdrawn at the latest by October 2006.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association, and supports essential requirements of EU Directive(s).
The provisions of this amendment shall not be mandatory to cranes manufactured the first 12 months after the
date of availability of the amendment. The provisions concerning stress calculations shall not apply to cranes
designed before the date of availability of the amendment.
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, Romania, Slovakia, Slovenia, Spain, Sweden,
Switzerland and United Kingdom.
2 Normative references
The following text is used:
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.
The following references are added:
EN 13001-1:2004, Cranes — General design — Part 1: General principles and requirements
EN 13001-2:2004, Cranes — General design — Part 2: Load actions
CEN/TS 13001-3-1:2004, Cranes — General design — Part 3-1: Limit states and proof of competence of steel
structures
EN ISO 12100-1:2003, Safety of machinery — Basic concepts, general principles for design — Part 1: Basic
terminology, methodology (EN ISO 12100-1:2003)
EN ISO 12100-2:2003, Safety of machinery — Basic concepts, general principles for design — Part 2:
Technical principles (EN ISO 12100-2:2003)
The following references are deleted:
EN 292-1:1991, Safety of machinery — Basic concepts, general principles for design — Part 1: Basic
terminology, methodology
EN 292-2:1991, Safety of machinery — Basic concepts, general principles for design — Part 2: Technical
principles and specifications
ISO 4302:1981, Cranes — Wind load assessment
The following two references are replaced in Clause 2 and in the text:
EN 50081-2:1993, Electromagnetic compatibility — Generic emission standard — Part 2: Industrial
environment
by
EN 61000-6-4:2001, Electromagnetic compatibility (EMC) — Part 6-4: Generic standards — Emission
standard for industrial environments (IEC 61000-6-4:1997, modified)
and
EN 50082-2:1995, Electromagnetic compatibility — Generic immunity standard — Part 2: Industrial
environment
by
EN 61000-6-2, Electromagnetic compatibility (EMC) — Part 6-2: Generic standards — Immunity for industrial
environments (IEC 61000-6-2:1999, modified)
5.2 Structural calculations
5.2.1 Information to be given in the calculation
The text of indent e) is replaced by:
e) the governing hoisting class, hoist drive class and stress history classes
5.2.2 Dynamic factors
5.2.2.1 Hoisting and gravity effects of the mass of the crane
The text of this subclause is replaced by:
The dynamic effects due to vibrations of the structure when raising or lowering a load shall be taken into
account by applying the factor φ on the gravitational forces due to the masses of the crane. It shall be used
for the design of the crane structure itself and its supports. The value of φ shall be the lowest of the two
values 1,1 and φ , or expressed as an equation:
φ = min(1,1 ; φ )
1 2
5.2.2.2 Hoisting and gravity effects of the gross load
The text of this subclause is replaced by:
In the case of hoisting or grounding a load as well as starting or stopping a vertical motion, the hereby
included vibrational effects shall be taken into account by multiplying the gravitational force due to the mass of
the hoist load by a factor φ .
The factor φ shall be taken as follows:
φ = φ + β × v
2 2,min 2 h
φ and β are given in Table 2a for the appropriate hoisting class. Loader cranes are assigned to hoisting
2,min 2
classes HC1 and HC2 according to their dynamic and elastic characteristics:
HC1 for crane mounted on a vehicle or foundation of equivalent flexibility;
HC2 for crane mounted on a static foundation.
v is the steady vertical hook speed, in meters per second, related to the lifting attachment. Values of v are
h h
given in Table 2b.
Table 2a — Value of ββββ and φφφφ
2 2,min
Hoisting class of appliance β φ
2 2,min
HC 1 0,17 1,05
HC 2 0,34 1,10
Table 2b — Values of v
h
Type of hoist drive and its operation method
Load combination
HD1 HD4 HD5
A1, B1 v v = 0
h,max 0,5 × vh,max h
C1 - v 0,5 × v
h,max h,max
where
HD1: hoist drive can only be operated at a fixed speed;
HD4: a step-less variable speed control can be operated by the crane driver;
HD5: after pre-stressing the hoist medium, the hoist drive control provides the reaching of a selected
speed with an acceleration independent of the crane driver;
v is the maximum vertical hook speed.
h,max
In load combinations A1 and B1, v is the maximum vertical hook speed that is given by any single
h,max
hydraulic drive action.
In load combination C1, v is the maximum vertical hook speed from all articulation hydraulic drives acting
h,max
simultaneously.
The heading and the text of subclause 5.2.2.4 is changed to:
5.2.2.4 Effects caused by acceleration/deceleration of the slewing drive
The dynamic factor Φ shall have the value 1,05 for hook duty and 1,3 for bucket or grapple duty.
h
5.2.3 Loads and forces
5.2.3.1 General
Under clause c) Exceptional loads, a new indent 4) is added:
4) forces due to simultaneous dynamic peaks caused by raising or lowering a load at the maximum sum of the
vertical speeds from all articulation drives.
5.2.3.2.3 Forces due to acceleration/deceleration of the slewing drive
The text of this subclause is replaced by:
The horizontal load of the mass of the gross load shall be taken into account according to the following:
M
F
h =
R
where
F is the horizontal load;
h
M is the gross slewing moment - (theoretical slewing moment with 100 % efficiency);
R is the outreach at calculated position. If R < R / 2, the value R = R / 2 is used in the equation for
max max
calculating F ;
h
R is the maximum hydraulic outreach.
max
5.2.3.3.1 Wind loads
The text of this subclause is replaced by:
Wind loads shall be calculated to EN 13001-2. Only in-service wind needs to be applied.
5.2.4 Load combinations
5.2.4.2 Load combinations to be covered (see table 3)
The text of this subclause is replaced by:
A1 and B1 Normal service conditions, raising/lowering loads with dynamic peak from any single hydraulic
function while slewing: A1 without wind effects, B1 with wind effects.
A2 and B2 Normal service conditions, with grapple, magnet or similar accessory allowing sudden release of
a part of the gross load while slewing: A2 without wind effects, B2 with wind effects.
C1 Simultaneous dynamic peaks caused by raising or lowering a load at the maximum sum of the
vertical speeds from all articulation drives, taking into account the available oil flow.
C3 Crane under test condition.
5.2.4.3 Application of Table 3
The text of this subclause is replaced by:
Basic load combinations for the calculation to prove that mechanical hazards from yielding and elastic
instability from extreme values are prevented are given in Table 3.
For the proof of fatigue strength, load combinations A1 and A2, with all partial safety factors γ set to 1,00,
p
shall be applied.
Table 3 — Load combinations to be covered
Load comb. A Load comb. B Load comb. C
Categories
Row
Loads
of load
γ A1 A2 γ B1 B2 γ C1 C3
ρ ρ ρ
Moved masses of
1,22 Φ Φ 1,16 Φ Φ 1,1 Φ 1,0 1
1 1 1 1 1
Gravity,
the crane
Acceleration of
Mass of the gross
lifting drives
Regular
1,34 Φ Φ 1,22 Φ Φ - - - 2
2 3 2 3
load
Acceleration of Mass of the gross
1,34 Φ Φ 1,22 Φ Φ - - - 3
5h 5h 5h 5h
slewing drive load
In service wind
Occasional Climate effects - - - 1,22 1 1 - - - 4
a
load
Exceptional Forces due to one exceptional effect - - - - - - 1,1 Φ 1,0 5
a
Acceleration and retarding forces acting simultaneously with wind loads shall only be applied to such an extent that the drive forces
in row 3 are not exceeded.
5.3 Stress analysis
The text of this subclause is replaced by:
The strength of the steel structure may be assessed according to CEN/TS 13001-3-1:2004 or according to the
information given in Annex B. In the latter case, the partial load factors γ in Table 3 shall be set to 1.
ρ
The limit states given in CEN/TS 13001-3-1:2004 are to be used in conjunction with a static analysis that is
made for all boom
...
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