SIST EN 1993-6:2007

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Eurocode 3 - Design of steel structures - Part 6: Crane supporting structuresEvrokod 3: Projektiranje jeklenih konstrukcij - 6 del: Žerjavne progeEurocode 3 - Calcul des structures en acier - Partie 6: Chemins de roulementEurocode 3 - Bemessung und Konstruktion von Stahlbauten - Teil 6: KranbahnenTa slovenski standard je istoveten z:EN 1993-6:2007SIST EN 1993-6:2007en91.080.10Kovinske konstrukcijeMetal structures91.010.30Technical aspects53.020.20DvigalaCranesICS:SIST ENV 1993-6:20011DGRPHãþDSLOVENSKI
STANDARDSIST EN 1993-6:200701-julij-2007







EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 1993-6April 2007ICS 53.020.20; 91.010.30; 91.080.10Supersedes ENV 1993-6:1999
English VersionEurocode 3 - Design of steel structures - Part 6: Cranesupporting structuresEurocode 3 - Calcul des structures en acier - Partie 6:Chemins de roulementEurocode 3 - Bemessung und Konstruktion vonStahlbauten - Teil 6: KranbahnenThis European Standard was approved by CEN on 12 June 2006.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, 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 STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2007 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 1993-6:2007: E



EN 1993-6: 2007 (E) 2 Contents page Foreword.4 1 General.7 1.1 Scope.7 1.2 Normative references.7 1.3 Assumptions.8 1.4 Distinction between principles and application rules.8 1.5 Terms and definitions.8 1.6 Symbols.8 2 Basis of design.9 2.1 Requirements.9 2.1.1 Basic requirements.9 2.1.2 Reliability management.9 2.1.3 Design working life, durability and robustness.9 2.2 Principles of limit state design.9 2.3 Basic variables.9 2.3.1 Actions and environmental influences.9 2.3.2 Material and product properties.9 2.4 Verification by the partial factor method.9 2.5 Design assisted by testing.10 2.6 Clearances to overhead travelling cranes.10 2.7 Underslung cranes and hoist blocks.10 2.8 Crane tests.10 3 Materials.11 3.1 General.11 3.2 Structural steels.11 3.2.1 Material properties.11 3.2.2 Ductility requirements.11 3.2.3 Fracture toughness.11 3.2.4 Through thickness properties.11 3.2.5 Tolerances.11 3.2.6 Design values of material coefficients.11 3.3 Stainless steels.11 3.4 Fasteners and welds.11 3.5 Bearings.11 3.6 Other products for crane supporting structures.12 3.6.1 General.12 3.6.2 Rail steels.12 3.6.3 Special connecting devices for rails.12 4 Durability.12 5 Structural analysis.13 5.1 Structural modelling for analysis.13 5.1.1 Structural modelling and basic assumptions.13 5.1.2 Joint modelling.13 5.1.3 Ground structure interaction.13 5.2 Global analysis.13 5.2.1 Effects of deformed geometry of the structure.13 5.2.2 Structural stability of frames.13 5.3 Imperfections.13 5.3.1 Basis.13 5.3.2 Imperfections for global analysis of frames.13 5.3.3 Imperfections for analysis of bracing systems.13 5.3.4 Member imperfections.13 5.4 Methods of analysis.13 5.4.1 General.13 5.4.2 Elastic global analysis.13 5.4.3 Plastic global analysis.13 5.5 Classification of cross-sections.14 5.6 Runway beams.14



EN 1993-6: 2007(E)
3 5.6.1 Effects of crane loads.14 5.6.2 Structural system.14 5.7 Local stresses in the web due to wheel loads on the top flange.15 5.7.1 Local vertical compressive stresses.15 5.7.2 Local shear stresses.17 5.7.3 Local bending stresses in the web due to eccentricity of wheel loads.17 5.8 Local bending stresses in the bottom flange due to wheel loads.18 5.9 Secondary moments in triangulated components.20 6 Ultimate limit states.22 6.1 General.22 6.2 Resistance of cross-section.22 6.3 Buckling resistance of members.22 6.3.1 General.22 6.3.2 Lateral-torsional buckling.23 6.4 Built up compression members.23 6.5 Resistance of the web to wheel loads.23 6.5.1 General.23 6.5.2 Length of stiff bearing.24 6.6 Buckling of plates.24 6.7 Resistance of bottom flanges to wheel loads.24 7 Serviceability limit states.27 7.1 General.27 7.2 Calculation models.27 7.3 Limits for deformations and displacements.27 7.4 Limitation of web breathing.29 7.5 Reversible behaviour.30 7.6 Vibration of the bottom flange.30 8 Fasteners, welds, surge connectors and rails.31 8.1 Connections using bolts, rivets or pins.31 8.2 Welded connections.31 8.3 Surge connectors.31 8.4 Crane rails.32 8.4.1 Rail material.32 8.4.2 Design working life.32 8.4.3 Rail selection.32 8.5 Rail fixings.33 8.5.1 General.33 8.5.2 Rigid fixings.33 8.5.3 Independent fixings.33 8.6 Rail joints.33 9 Fatigue assessment.34 9.1 Requirement for fatigue assessment.34 9.2 Partial factors for fatigue.34 9.3 Fatigue stress spectra.34 9.3.1 General.34 9.3.2 Simplified approach.34 9.3.3 Local stresses due to wheel loads on the top flange.35 9.3.4 Local stresses due to underslung trolleys.35 9.4 Fatigue assessment.35 9.4.1 General.35 9.4.2 Multiple crane actions.35 9.5 Fatigue strength.36 Annex A [informative] – Alternative assessment method for lateral-torsional buckling.37



EN 1993-6: 2007 (E) 4 Foreword This European Standard EN 1993-6, “Eurocode 3: Design of steel structures: Part 6 Crane supporting srtuctures”, has been prepared by Technical Committee CEN/TC250 « Structural Eurocodes », the Secretariat of which is held by BSI.
CEN/TC250 is responsible for all Structural Eurocodes.
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 October 2007, and conflicting National Standards shall be withdrawn at latest by March 2010.
This Eurocode supersedes ENV 1993-6. According to the CEN-CENELEC Internal Regulations, the National Standard Organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, 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. Background of the Eurocode programme In 1975, the Commission of the European Community decided on an action programme in the field of construction, based on article 95 of the Treaty. The objective of the programme was the elimination of technical obstacles to trade and the harmonisation of technical specifications. Within this action programme, the Commission took the initiative to establish a set of harmonised technical rules for the design of construction works which, in a first stage, would serve as an alternative to the national rules in force in the Member States and, ultimately, would replace them. For fifteen years, the Commission, with the help of a Steering Committee with Representatives of Member States, conducted the development of the Eurocodes programme, which led to the first generation of European codes in the 1980’s.
In 1989, the Commission and the Member States of the EU and EFTA decided, on the basis of an agreement1 between the Commission and CEN, to transfer the preparation and the publication of the Eurocodes to the CEN through a series of Mandates, in order to provide them with a future status of European Standard (EN). This links de facto the Eurocodes with the provisions of all the Council’s Directives and/or Commission’s Decisions dealing with European standards (e.g. the Council Directive 89/106/EEC on construction products – CPD – and Council Directives 93/37/EEC, 92/50/EEC and 89/440/EEC on public works and services and equivalent EFTA Directives initiated in pursuit of setting up the internal market). The Structural Eurocode programme comprises the following standards generally consisting of a number of Parts: EN 1990 Eurocode:
Basis of structural design EN 1991 Eurocode 1: Actions on structures EN 1992 Eurocode 2: Design of concrete structures EN 1993 Eurocode 3: Design of steel structures EN 1994 Eurocode 4: Design of composite steel and concrete structures EN 1995 Eurocode 5: Design of timber structures EN 1996 Eurocode 6: Design of masonry structures EN 1997 Eurocode 7: Geotechnical design EN 1998 Eurocode 8: Design of structures for earthquake resistance EN 1999 Eurocode 9: Design of aluminium structures Eurocode standards recognise the responsibility of regulatory authorities in each Member State and have safeguarded their right to determine values related to regulatory safety matters at national level where these continue to vary from State to State.
1 Agreement between the Commission of the European Communities and the European Committee for Standardisation (CEN) concerning the work on EUROCODES for the design of building and civil engineering works (BC/CEN/03/89).



EN 1993-6: 2007(E)
5 Status and field of application of Eurocodes The Member States of the EU and EFTA recognise that Eurocodes serve as reference documents for the following purposes: as a means to prove compliance of building and civil engineering works with the essential requirements of Council Directive 89/106/EEC, particularly Essential Requirement N°1 - Mechanical resistance and stability - and Essential Requirement N°2 - Safety in case of fire; as a basis for specifying contracts for construction works and related engineering services; as a framework for drawing up harmonised technical specifications for construction products (ENs and ETAs) The Eurocodes, as far as they concern the construction works themselves, have a direct relationship with the Interpretative Documents2 referred to in Article 12 of the CPD, although they are of a different nature from harmonised product standard3. Therefore, technical aspects arising from the Eurocodes work need to be adequately considered by CEN Technical Committees and/or EOTA Working Groups working on product standards with a view to achieving a full compatibility of these technical specifications with the Eurocodes. The Eurocode standards provide common structural design rules for everyday use for the design of whole structures and component products of both a traditional and an innovative nature. Unusual forms of construction or design conditions are not specifically covered and additional expert consideration will be required by the designer in such cases. National Standards implementing Eurocodes The National Standards implementing Eurocodes will comprise the full text of the Eurocode (including any annexes), as published by CEN, which may be preceded by a National title page and National foreword, and may be followed by a National Annex. The National Annex may only contain information on those parameters which are left open in the Eurocode for national choice, known as Nationally Determined Parameters, to be used for the design of buildings and civil engineering works to be constructed in the country concerned, i.e. : values and/or classes where alternatives are given in the Eurocode, values to be used where a symbol only is given in the Eurocode, country specific data (geographical, climatic etc.) e.g. snow map, the procedure to be used where alternative procedures are given in the Eurocode, – references to non-contradictory complementary information to assist the user to apply the Eurocode.
2 According to Art. 3.3 of the CPD, the essential requirements (ERs) shall be given concrete form in interpretative documents for the creation of the necessary links between the essential requirements and the mandates for hENs and ETAGs/ETAs. 3 According to Art. 12 of the CPD the interpretative documents shall : a) give concrete form to the essential requirements by harmonising the terminology and the technical bases and indicating classes or levels for each requirement where necessary ; b) indicate methods of correlating these classes or levels of requirement with the technical specifications, e.g. methods of calculation and of proof, technical rules for project design, etc. ; c) serve as a reference for the establishment of harmonised standards and guidelines for European technical approvals. The Eurocodes, de facto, play a similar role in the field of the ER 1 and a part of ER 2.



EN 1993-6: 2007 (E) 6 Links between Eurocodes and harmonised technical specifications (ENs and ETAs) for products There is a need for consistency between the harmonised technical specifications for construction products and the technical rules for works4. Furthermore, all the information accompanying the CE Marking of the construction products which refer to Eurocodes should clearly mention which Nationally Determined Parameters have been taken into account. Additional information specific to EN 1993-6 EN 1993-6 is one of the six parts of EN 1993 ”Design of Steel Structures” and gives principles and application rules for the safety, serviceability and durability of crane supporting structures. EN 1993-6 gives design rules that supplement the generic rules in EN 1993-1. EN 1993-6 is intended for clients, designers, contractors and public authorities. EN 1993-6 is intended to be used with EN 1990, EN 1991 and EN 1993-1. Matters that are already covered in those documents are not repeated. Numerical values for partial factors and other reliability parameters are recommended as basic values that provide an acceptable level of reliability. They have been selected assuming that an appropriate level of workmanship and quality management applies. National Annex for EN 1993-6 This standard gives alternative procedures, values and recommendations for classes with notes indicating where national choices may be made. So the National Standard implementing EN 1993-6 should have a National Annex containing all Nationally Determined Parameters to be used for the design of crane-supporting members in steel structures to be constructed in the relevant country. National choice is allowed in EN 1993-6 through: 2.1.3.2(1)P Design working life. 2.8(2)P Partial factor
gF,test
for crane test loads. 3.2.3(1) Lowest service temperature for indoor crane supporting structures. 3.2.3(2)P Selection of toughness properties for members in compression. 3.2.4(1) table 3.2 Requirement
ZEd
for through-thickness properties. 3.6.2(1) Information on suitable rails and rail steels. 3.6.3(1) Information on special connecting devices for rails. 6.1(1) Partial factors
gMi
for resistance for ultimate limit states. 6.3.2.3(1) Alterna
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