en 1090- norway requirements and specifications
TRANSCRIPT
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Madrid 9. December 2013
Kjetil Myhre
Chairman ECCS/TC9
Manager Norwegian Steel Association
Infrastructure
Steel in Norway;Requirements and Specifications
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Norwegian Steel
Association
has promoted the use
of steel since 1993
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EN 1090
EN 1090
Execution of steel structures and aluminium structures
EN 1090-1: Requirements for conformity assessment ofstructural components (inclusive rules for CE Marking)
EN 1090-2: Technical requirements for steel structures
EN 1090-3: Technical requirements for aluminium structures
NB! EN 1090-1 is a harmonised standard (hEN)
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CEN/TC 135 with Norwegian chairman and secretariat
Technical committee
TC 135
Working group
WG 2
Working group
WG 1
Experts from:
Companies
Authorities
R & D
Organizations
Consumers
Manufacturers
Working group
WG 3
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CE marking
EN 1090-1 is a technical spesification and basis for:
- Certification of manufacturers FPC* system
- Declaration of Performance (DoP)
- CE Marking
Time schedule CE Marking:
Published in Official Journal (OJ)
& start CE-merking: 1. January 2011Co-existence / transition period: 3,5 years
Mandatory CE Merking: 1. July 2014
* FPC = Factory production control
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CPR & CE Marking
Objective:
To promote commonstandards across Europe
in order to make trade
easier, by CE-marking and
declaring the performance
of the products
New Construction Products Regulation (CPR)
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CPR & CE Marking
New Construction Products Regulation (CPR)
The CPD was withdrawn and the full CPR came into
force: 1. July 2013
CE Marking is absolute mandatory in EU member states
from 1. July 2013 and in Norway from 1. January 2014*
(except NS-EN 1090-1 who has the date 1. July 2014)
* When there is a harmonised standard where the co-existence
period has expired or when there is an ETA
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Regulations and standards
The Planning and Building Act
+ Regulations on technical requirements
including Construction Products Regulation (CPR)
Basis of structural designNS-EN 1990 + National Annexes
Projecting standards
NS-EN 1991-1998 + National Annexes
Execution standard NS-EN 1090-2
Product and test standards
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Regulations and standards
Additional national standards
Norwegian contract standards for execution of building
and civil engineering works: NS 8405/7 & 15/17
Specification texts for building, construction
& installations: NS 3420
The Norwegian Public Roads Administration:
- Manual 025 Standard specification texts for road contracts
- Manual 026 Standard specification texts for bridges and quays- Manual 185 Bridge design (Eurocode version)
- Manual 122 Cables for suspension bridge
Jernbaneverket (Norwegian governments agency for railway
services): Technical regulations
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Eurocodes
NS-EN 1993 Design of Steel Structures
NS-EN 1993-1 General rules and rules for buildings.
NS-EN 1993-2 Steel bridges.
NS-EN 1993-3 Towers, masts and chimneys.
NS-EN 1993-4 Silos, tanks and pipelines.NS-EN 1993-5 Piling.
NS-EN 1993-6 Cane supporting structures.
NS-EN 1993-2 to EN 1993-6 refer to the generic rules in NS-EN 1993-1.
The rules in parts NS-EN 1993-2 to NS-EN 1993-6 supplement the generic rules
in NS-EN 1993-1.
NS-EN 1994 Design of composite steel and concrete structures
NS-EN 1994-1-1 General rules and rules for buildings
NS-EN 1994-1-2 Structural fire design
NS-EN 1994-2 Bridges
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Eurocodes
NS-EN 1993-1 Design of Steel Structures
NS-EN 1993-1-1 General rules and rules for buildings.
NS-EN 1993-1-2 Structural fire design.
NS-EN 1993-1-3 Cold-formed thin gauge members and sheeting.
NS-EN 1993-1-4 Stainless steels.NS-EN 1993-1-5 Plated structural elements.
NS-EN 1993-1-6 Strength and stability of shell structures.
NS-EN 1993-1-7 Strength and stability of planar plated structures transversely loaded.
NS-EN 1993-1-8 Design of joints.
NS-EN 1993-1-9 Fatigue strength of steel structures.
NS-EN 1993-1-10 Material toughness and through-thickness properties.NS-EN 1993-1-11 Design of structures with tension components made of steel.
NS-EN 1993-1-12 Supplementary rules for high strength steel.
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Eurocode 3
Select proper steel for outdoor climateNS-EN 1993-1-9 National Annex: Table NA.2(904)Bridges: NS-EN 1993-2 National Annex: Table NA.3(901)
Service temperature: -50C - +35CNote: The lowest service temperature is given in NS-EN 1991-1-5/NA.
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NS-EN 1993-2 National Annex: Table NA.3(901):
Maximum permitted thickness in mm for bridges
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NS-EN 1090
EN 1090-1 contains no technical requirementsfor execution, only rules to demonstrate
conformity between the component's properties
and the declaration (CE Marking standard)
The technical requirements are given in NS-EN
1090-2 (steel) and NS-EN 1090-3 (aluminium)
These standards cover all types of load bearingstructures and single components
CE Marking is only for manufacturing, not erection
CE Marking is only delivered building site
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NS-EN 1090-2
ScopeHot rolled, structural steel products up to and
including grade S690
Cold formed components and sheeting up to and
including grade S700Hot finished and cold formed stainless steels
Hot finished and cold formed structural hollow
sections
Also custom-made sections manufactured by welding
Also grades up to and including S960, if necessaryadditional requirements are specified.
The standard applies to steel structures designed
according to relevant parts of Eurocode 3 and 4
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NS-EN 1090-2 Contents
1 Scope
2 Normative references
3 Terms and definitions
4 Specifications and documentation
5 Constituent products6 Preparation and assembly
7 Welding
8 Mechanical fastening
9 Erection
10 Surface treatment
11 Geometrical tolerances
12 Inspection, testing and correction
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Some definitions in NS-EN 1090-2
Execution classa set of requirements specified for the execution of the works as a
whole, of an individual component or of a detail of a component
Constituent productmaterial and product used for manufacturing a component and
which remains as part of it, e.g. structural steel product, stainless
steel product, mechanical fastener, welding consumable
Componenta part of a steel structure (made of constituent products) which
may be an assembly of several smaller components
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NS-EN 14399-3:
Identification
Inspection documents
Traceability
Steel grade (S355)
Surface condition
Structural steels
Welding consumables
Mechanical fasteners
Hot rivets Grouting materials
Expansion joints for
bridges
High strength cables, rods
and terminations
5 Constituent products
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6 Preparation and assembly
Identification/marking
Handling and storage
Shearing/cutting Shaping/forming
Holing
Cut outs Assembly
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7 Welding
Welding plan
Welding processes
Qualification of welding
procedures and weldingpersonnel
Preparation and execution of
welding Acceptance criteria
Welding of stainless steels
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8 Mechanical fastening
Bolting assemblies
Preparation of contact surfaces
Tightening of bolts
Hot riveting Fit bolts
Fastening of thin gaugecomponents 1 - mutter
2 - underlagsskive under mutteren nr
mutteren dreier under stramming
3 - mellomleggsskive
4 - mleinnretning for skruens strekk
5 - avfaset underlagsskive for
sammensettingen eller den avfasede
mellomleggsskiven
6 - skruehode
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9 Erection
Safety of the works
Description of the erection method (design basis)
Survey (Site measurements)
Supports, anchors and bearings Erection and work at site
- Drawings
- Marking
- Handling and storage- Trial erection
- Erection methods
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10 Surface treatment
Preparation of steel Corrosivity categories
Galvanizing
Sealing of spaces
Inaccessible surfaces
Repairs after cutting or welding
Cleaning after erection
ISO 8501-3:
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11 Geometrical tolerances
Essential and functional tolerancesErectionManufacturing
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12 Inspection, testing and correction
Requirements for inspection and testing included in quality
documentation or quality plan as relevant:
Constituent products and components Manufacturing
Welding
Mechanical fastening
Surface treatment and corrosion protection Erection
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What is execution class?
A set of requirements, given in class, for execution of:
The whole construction; A part of the construction;
One single component;
A group of details;
One single detail;
This means: A construction may have one or more execution
classes (EXC)
Execution classes
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Four execution classes: from EXC 1 to EXC 4
Grade of strictness increase from EXC1 to EXC 4
If class is not specified: applies EXC2
The requirements according to execution classes are
summarised in Annex A.3
Guidelines for choosing execution class is given in
informative Annex B.
Execution classes
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The criteria for the selection of execution class
Designers choose from three different conditions:
Consequence Class(CC1 to CC3)
- defined in NS-EN 1990 in informative annex B
Service Category (SC 1 or SC2)
- defined in NS-EN 1090-2 informative Annex B
Product Category (PC1 or PC2)
- defined in NS-EN 1090-2 informative Annex B
Execution classes
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Consequences of failure or malfunction of the structure
Consequences classes = Reliability classes
NB! Particular members of the structure may be designated in the same, higher or
lower consequences class than for the entire structure.
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Hazards connected with the use of the structure
Service Category (SC)
NB! A structure or part of a structure can contain components or structural details
that belong to different service categories.
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Hazards connected with execution of the structure
Production categories (PC)
NB! A structure or part of a structure may contain components or structural details
that belong to different production categories.
EN 1090 2
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Table B.3 Recommended matrix for determination of
execution classes
EN 1090-2
Execution classes
EN 1090 2
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Table B.3 Recommended matrix for determination of
execution classes
EN 1090-2
Execution classes
S355
Static
Medium
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Guidance:
Actual construction types. A rough classification:
EXC1 Small houses, warehouses, agri cul tural bui ldings,nurseries, quays. Welded and non-welded structures withsimple fabri cation
EXC2 Homes, off ices, commercial buildings, hall s, insti tutionalbui ldings, harbor facil i ties, towers, masts, small r oad bridgesand footbridges
EXC3 Larger road and railway bridges, crane structures, largebui ldings with huge crowds, large tr ibunes, sports arenas ...
EXC4 Nuclear faci l i ties, extr aordinary designs. As for EXC3 butwith particularly large impact, high util ization by fatigue andcomplex fabr ication conditi ons.
Execution classes
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If the required execution class for components or details is
different from that applicable to the structure, then the
components or detailsshall be clearly identified.
New proposal: Annex in EN 1993-1-1
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NOTE The National Annex may specify the choice of execution class in
terms of types of components or details. The following is recommended:
If EXC1 is selected for a structure, then EXC2 shall apply to the following
types of component:
a) welded components manufactured from steel products of grade S355 and
above;
b) welded components essential for structural integrity that are assembled
by
welding on the construction site;c) welded components of CHS lattice girders requiring end profile cuts;
d) components with hot forming during manufacturing or receiving thermic
treatment during manufacturing.
New proposal: Annex in EN 1993-1-1
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Table A.3 Requirements to each EXC
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Requirements for welding
Welding in general (7.1)
Quality requirements in accordance with EN ISO 3834:
EXC1: Part 4 "Elementary quality requirements";
EXC2: Part 3 "Standard quality requirements";
EXC3 and EXC4: Part 2 "Comprehensive quality
requirements".
Requires a welding plan prepared for the work
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NS-EN 1090-2: Table 14 Technical knowledge of the
welding coordinator (RWC). Structural carbon steels
EXCSteels
(steel group)Reference standards
Thickness (mm)
t25 a 25 50
EXC2
S235 to S355
(1.1, 1.2, 1.4)
EN 10025-2, EN 10025-3, EN 10025-4EN 10025-5, EN 10149-2, EN 10149-3
EN 10210-1, EN 10219-1B S C c
S420 to S700(1.3, 2, 3)
EN 10025-3, EN 10025-4, EN 10025-6EN 10149-2, EN 10149-3EN 10210-1, EN 10219-1
S C d C
EXC3
S235 to S355
(1.1, 1.2, 1.4)
EN 10025-2, EN 10025-3, EN 10025-4EN 10025-5, EN 10149-2, EN 10149-3
EN 10210-1, EN 10219-1S C C
S420 to S700(1.3, 2, 3)
EN 10025-3, EN 10025-4, EN 10025-6EN 10149-2, EN 10149-3EN 10210-1, EN 10219-1
C C C
EXC4 Alle Alle C C C
a Column base plates and endplates 50 mm.b Column base plates and endplates 75 mm.
c For steels up to and including S275, level S is sufficient.d For steels N, NL, M and ML, level S is sufficient.
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National approved Welding Coordinator 1090-2
and IIW competence
EXCSteels
(steel group)Reference standards
Thickness (mm)
t25 a 25 50
EXC2
S235 to S355
(1.1, 1.2, 1.4)
EN 10025-2, EN 10025-3, EN 10025-4EN 10025-5, EN 10149-2, EN 10149-3
EN 10210-1, EN 10219-1
Niv2eller IWS
Niv 3eller IWT IWE
c
S420(1.3, 2.1) EN 10025-3, EN 10025-4, EN 10025-6
EN 10149-2, EN 10149-3EN 10210-1, EN 10219-1
Niv 3eller IWT
Niv 3eller IWE d
IWES420 to S700
(1.3, 2, 3)generelt
IWT IWE d
EXC3
S235 to S355
(1.1, 1.2, 1.4)
EN 10025-2, EN 10025-3, EN 10025-4EN 10025-5, EN 10149-2, EN 10149-3
EN 10210-1, EN 10219-1
Niv 3eller IWT IWE IWE
S420
(1.3, 2.1) EN 10025-3, EN 10025-4, EN 10025-6EN 10149-2, EN 10149-3EN 10210-1, EN 10219-1
Niv 3
eller IWE IWE IWES420 to S700
(1.3, 2, 3) IWE
EXC4 Alle Alle IWE IWE IWE
a Column base plates and endplates 50 mm.b Column base plates and endplates 75 mm.c For steels up to and including S275, level S is sufficient.d For steels N, NL, M and ML, level S is sufficient.
NS EN 1090 2
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NS EN 1090-2
Quality requirements & NDT of welds
Qualifying for execution. The first 5 welds with new WPSmust always meet the following requirements:
- The quality level B (ISO 5817)
- NDT shall be double of the values in Table 24
- Minimum length to be inspected is 900 mm
- If inspection gives non conforming results, a new set of
five joints shall be tested
- After acceptable result the manufacturing shall meet:
- EXC1 quality level D
- EXC2 quality level C (partly level D)
- EXC3 quality level B
- EXC4 quality level B + (additional requirements)
- The extent of supplementary NDT shall meet Table 24.
NS EN 1090 2
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NS EN 1090-2
Quality requirements & NDT of welds
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Specifications and documentation
1 Execution
Specification
2 Constructor's
Documentation
NS-EN 1090-2 requires
+
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1 Execution SpecificationAll necessary information and technical requirements for execution
2 The constructor's documentation- Quality plan and documentation
- Welding plan
- Erection works and safety plan
- Inspection plan- Execution / AS-built documentation
Documentation
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Execution Specification
The engineer should draw up the Execution
Specification! - So that the load bearing
capacity, stability and functionality are met.
The steel contractor must ensure that the
Execution Specification meets the
requirements of EN 1090-2 and eventually
supplement with the missing.The steel contractor is responsible!
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NS-EN 1090-2 requires Execution Specificaton
= Necessary information and technical requirements for
execution incl. procedures for alterations
shall consider the following items when relevant:a) additional information, as listed in A.1;
b) options, as listed in A.2;
c) execution classes, see 4.1.2;
d) preparation grades, see 4.1.3;
e) tolerance classes, see 4.1.4;
f) technical requirements regarding the safety of the works,
see 4.2.3 and 9.2.
Execution Specification
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Execution Specification
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Execution Specification
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Requirements for conformity assessment
of structural components
NS-EN 1090-1
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NS-EN 1090-1
Contents
1 Scope
2 Normative references
3 Terms, definitions and abbreviations
4 Requirements5 Evaluation methods
6 Evaluation of conformity
7 Classification and designation
8 Marking
Annex A (informative) Guidelines for preparation of the componentspecification
Annex B (normative) Assessment of factory production control
Annex ZA (informative) Clauses of this European Standard
Addressing the provisions of EU
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CE marking of products
CE marking comprises all types of:
- Load bearing steel components and kits
- Unique components
Although fabricated steel components are generallybespoke, being one-offs or to a limited number typically
of less than 10 identical items this may be series or non-
series production.
From 1. July 2014:
Mandatory in the EU and EFTA member countries
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Definitions in NS-EN 1090-1
Component specificationdocument or documents giving all necessary information and
technical requirements for manufacturing the structural component
Design briefdocuments containing all information necessary to perform a
structural design of the component, considering its intended use
Structural characteristicsproperties of the component connected with its ability to function
satisfactorily under the influence of the actions it is subject to(the performance characteristics are load bearing capacity, fatigue strength,
resistance to fire and deformation at serviceability limit state)
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How to evaluate conformity?
EN 1090-1 specifies theperformance characteristics
That shall be declared by the manufacturer or supplier
The general principles of evaluation of conformity is theuse of
- Initial Type Testing (ITT)
- Factory Production Control (FPC).
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How evaluate conformity?
The basis of ITT is:
- A manufacturer develops a product (a prototype) to
demonstrate its properties in relation to the performance
characteristics.
- The manufacturer starts to produce the new product,
and representative samples from new production are tested to
determine that the production methods used can produceconsistent products.
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Initial type testing (ITT)
ITT is needed
- at the start of production of a new product,
- the use of new constituent products- at the start of a new or modified method of production
if this would affect a characteristic subject to evaluation
- if production is changed to a higher Execution Class.
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Initial type testing (ITT)
Example:
- A manufacturer develop a preliminary welding procedure
specification (pWPS);
- Based on the pWPS, the manufacturer carries out a
welding procedure test, which is subjected to destructive
and nondestructive tests (NDT). The results are recorded in
a welding procedure qualification record (WPQR);
- The WPQR is used to support application of the WPS in
practice and the qualification of other WPS to be used inproduction within a defined range of essential variables, e.g
material type/thickness, joint types, welding position etc.
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Factory production control, FPC
Factory production control (FPC) is needed to establish
that a manufacturer can produce conforming product in
regular ongoing production.
The FPC system shall consist of written procedures,
regular inspections and tests and/or assessments and
the use of results to control the components constituent
products, equipment, the production process and themanufactured component.
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A FPC system conforming to the requirements of EN ISO 9001
and made specific to the requirements of EN 1090-1 shall be
considered to satisfy the requirements.
The results of inspections, tests and assessments stated in themanufacturer`s FPC system shall be recorded.
The action to be taken if control values or criteria are not met
shall be recorded and retained for the period specified in the
manufacturers FPC procedures.
The assessment of FPC shall be as Annex B.
Factory production control, FPC
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Assessment of FPC
The tasks for the initial assessment are given in Table B.1
Tasks related to execution work
- General: Inspection and evaluation of execution resources
(premises, personnel and equipment), in particular:
- Evaluation of competence of personnel (and job descriptions)
- Inspection and evaluation of the control system for checking
conformity, and procedures for handling any nonconformity.
- Check that the factory and the welding plant meet the requirement
with regard to equipment (testing and calibration)
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Assesment of tasks related to structural design work:
- General: Inspection and evaluation of design resources
(premises, personnel and equipment), in particular:
- Evaluation of competence of personnel (and job descriptions)
- Evaluation by samples that relevant equipment and resources
e.g. procedures for hand calculations and/or computer equipment
and computer programs for the work are available and functional.
- Evaluation of procedures for structural design including control
procedures to secure that conformity is obtained.
Assessment of FPC
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Essential performance characteristics
Tolerances on dimensions
and shape
Durability
Weldability Load bearing capacity
Fracture toughness Fatigue strength
Reaction to fire Resistance to fire
Emission of radioactivity
and Release of cadmium.
Deformation at
serviceability limit state
The first 6 are material properties & geometrical data
(mandatory to declare)
The next 4 (blue text) are structural characteristics
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Example: declaration of essential characteristics
Essential characteristics
Performance
Harmonised technical
specification
Tolerances on dimensions and shape EN 1090-2, tolerance class 1 EN 1090-1: 2009 + A1: 2011
Weldability EN 10025-2, S275JR & S355JR EN 1090-1: 2009 + A1: 2011
Fracture toughness/impact resistance S275JR & S355JR (27J @ 20C) EN 1090-1: 2009 + A1: 2011
Load bearing capacity
NPD
EN 1090-1: 2009 + A1: 2011
Fatigue strength NPD EN 1090-1: 2009 + A1: 2011
Resistance to fire NPD EN 1090-1: 2009 + A1: 2011
Reaction to fire Class A1 (steel only) EN 1090-1: 2009 + A1: 2011
Release of cadmium and its
compounds
NPD EN 1090-1: 2009 + A1: 2011
Radioactivity NPD EN 1090-1: 2009 + A1: 2011
Durability Surface preparation according to EN
1090-2, Preparation grade P3. Surfacepainted according to EN ISO 12944.
EN 1090-1: 2009 + A1: 2011
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Eksample:
Declaration of
Performance
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The manufacturer or his authorised representative establishedwithin the EEA is responsible for the affixing of
the CE marking.
The CE marking symbol affix shall be in accordance withdirective 93/68/EC and shall be shown on the component or
may be on the accompanying label, the packaging or on the
commercial documentation.
The CE marking consists
of the initials "CE" and
regulated information.
CE marking and labelling
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Eksample: CE mark
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Harmonisedstandard
(hEN)
DescriptionAvailable
date
Startcoexistens/
Start CE
marking
Endcoexistens/
Mandatory
CE merking
EN 10025-1 Steel sections and plates Nov 2004 01/09/2005 01/09/2006
EN 10210-1Hot finnished hollow
sectionsApr 2006 01/02/2007 01/02/2008
EN 10219-1 Cold formed hollow sections Apr 2006 01/02/2007 01/02/2008
EN 14399-1 Preloadable bolts Mar 2005 01/01/2006 01/10/2007
EN 15048-1 Non-preloadable bolts Apr 2007 01/01/2008 01/10/2009
EN 1090-1Fabricated structural
steelworkOct 2009 01/01/2011 01/07/2014
Main harmonised steel product standards
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How to ensure conformity of steel
System 2+: system for production control FPC,
controlled by a Notified Body
The Notified Body issues a certificate to the
manufacturer that gives the right to CE Mark
The notified body carries out regular inspections to
confirm the certificate
The Notified Body checks the system, not the
componentIt is the manufacturer's responsibility to deliver
components that conform to the declaration, which
refers to the component specificationand standards.
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NS-EN 1090-1
Intervals between inspections after the initial surveillance
Execution classes
Intervals between inspections
of manufacturer's FPC after
the ITT (years)
EXC1 and EXC2 1233
EXC3 and EXC4 11233
The frequency of inspection may be increased if there is:
a) new or changed essential facilities;b) change of responsible welding coordinator;
c) new welding processes, type of parent metal and the
associated welding procedure qualification record (WPQR);
d) new essential equipment.
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CE marking, the process
Here is a procedure leading to CE marking:
A - Identify the Execution class(es) including steel materials
B - Identify the performance characteristics to be declared
C - Perform Initial Type Testing (and ev. ITC)
D - Establish a system for production control, FPC
E - Certification of FPC by a Notified Body.
F - Make a Declaration of PerformanceG - Affixing the CE mark
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Examples: FPC and Welding Certificate
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Thank you
Any questions?