EN 1998-6:2005

Eurocode 8: Design of structures for earthquake resistance - Part 6: Towers, masts and chimneys

Complementary to material related Eurocode parts dealing with towers, masts and chimneys. Design rules for the earthquake resistant design of tall, slender structures: towers, including bell-towers and intake towers, masts, industrial chimneys and lighthouses constructed in reinforced concrete or steel.

Eurocode 8: Auslegung von Bauwerken gegen Erdbeben - Teil 6: Türme, Maste und Schornsteine

Eurocode 8: Calcul des structures pour leur résistance aux séismes - Partie 6 : Tours, mâts et cheminées

(1)   Le domaine d'application de l'Eurocode 8 est défini dans l'EN 1998-1:2004, 1.1.1 et le domaine d'application de la présente norme est défini en (2) à (4). Les autre parties de l'Eurocode 8 sont mentionnées dans l'EN 1998-1:2004, 1.1.3.
(2)   L'EN 1998-6 établit des exigences, des critères et des règles pour le dimensionnement de structures hautes et élancées : les tours, incluant les clochers, les tours d'aspiration, les pylônes de radio et de télévision, les mâts, les cheminées (incluant les cheminées industrielles auto-portantes) et les phares. Des dispositions additionnelles spécifiques aux cheminées en béton armé et en acier sont données aux articles 5 et 6, respectivement. Des dispositions additionnelles spécifiques aux pylônes en acier et aux pylônes haubanés en acier sont données aux articles 7 et 8, respectivement. La présente norme spécifie également des exigences pour les éléments non structuraux, tels que les antennes, le revêtement des cheminées, et d'autres équipements.
NOTE 1   L'Annexe A informative donne des recommandations et des informations concernant l'analyse dynamique linéaire prenant en compte les composantes de rotation du mouvement du sol.
NOTE 2   L'Annexe B informative donne des recommandations et des informations concernant l'amortissement modal dans l'analyse modale avec réponse spectrale.
NOTE 3   L'Annexe C informative donne des informations concernant l'interaction sol-structure, ainsi que des recommandations visant à prendre en compte cette interaction dans l'analyse dynamique linéaire.
NOTE 4   L'Annexe D informative donne des informations et des recommandations supplémentaires concernant le nombre de degrés de liberté et le nombre de modes de vibration dont l'analyse doit tenir compte.
NOTE 5   L'Annexe E informative donne des informations et des recommandations concernant le dimensionnement sismique des cheminées en maçonnerie.
NOTE 6   L'Annexe F informative donne des informations supplémentaires concernant les performances et le di

Evrokod 8: Projektiranje potresnoodpornih konstrukcij – 6. del: Stolpi, jambori, dimniki

General Information

• Status: Published
• Publication Date: 07-Jun-2005
• Withdrawal Date: 30-Mar-2010
• ICS: 91.120.25 - Seismic and vibration protection
• Technical Committee: CEN/TC 250 - Structural Eurocodes
• Drafting Committee: CEN/TC 250/SC 8 - Eurocode 8: Earthquake resistance design of structures
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 08-Jun-2005
• Completion Date: 08-Jun-2005
• Directive: 305/2011 - Regulation (eu) No 305/2011 of the European Parliament and of the Council of 9 march 2011 laying down harmonised conditions for the marketing of construction products and repealing council directive 89/106/eec
• Directive: 89/106/EEC - Construction products
• Mandate: M/265 - Mandate to CEN for the conversion of the Eurocodes from ENV into EN concerning the structural and geotechnical design of buildings and civil engineering works
• Mandate: M/BC/CEN/89/11 - Framework mandate to CEN on Eurocode work : execution of a standardization programme on Eurocodes for the structural design of building and civil engineering works
• Ref Project: SIST EN 1998-6:2005 - Eurocode 8: Design of structures for earthquake resistance - Part 6: Towers, masts and chimneys

Relations

• Revised: prEN 1998-4 - Eurocode 8 - Design of structures for earthquake resistance - Part 4: Silos, tanks, pipelines, towers, masts and chimneys
• Effective Date: 12-Oct-2022

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Eurocode 8: Design of structures for earthquake resistance - Part 6: Towers, masts and chimneysEvrokod 8: Projektiranje potresnoodpornih konstrukcij – 6. del: Stolpi, jambori, dimnikiEurocode 8: Calcul des structures pour leur résistance aux séismes - Partie 6 : Tours, mâts et cheminéesEurocode 8: Auslegung von Bauwerken gegen Erdbeben - Teil 6: Türme, Maste und SchornsteineTa slovenski standard je istoveten z:EN 1998-6:2005SIST EN 1998-6:2005en91.120.25YLEUDFLMDPLSeismic and vibration protection91.060.40Dimniki, jaški, kanaliChimneys, shafts, ducts91.010.30Technical aspectsICS:SLOVENSKI
STANDARDSIST EN 1998-6:200501-oktober-2005







EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 1998-6
June 2005 ICS 91.120.25 Supersedes ENV 1998-3:1996 English version
Eurocode 8: Design of structures for earthquake resistance - Part 6: Towers, masts and chimneys
Eurocode 8: Calcul des structures pour leur résistance aux séismes - Partie 6 : Tours, mâts et cheminées
Eurocode 8: Auslegung von Bauwerken gegen Erdbeben - Teil 6: Türme, Maste und Schornsteine This European Standard was approved by CEN on 25 April 2005.
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 © 2005 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1998-6:2005: E



EN 1998-6:2005 (E) 2 Contents
1 GENERAL 8 1.1 SCOPE 8 1.2 REFERENCES 8 1.3 ASSUMPTIONS 9 1.4 DISTINCTION BETWEEN PRINCIPLES AND APPLICATION RULES 9 1.5 TERMS AND DEFINITIONS 10 1.5.1 Special terms used in EN 1998-6 10 1.6 SYMBOLS 10 1.6.1 General 10 1.6.2 Further symbols used in EN 1998-6 10 1.7 S.I. UNITS 11 2 PERFORMANCE REQUIREMENTS AND COMPLIANCE CRITERIA 12 2.1 FUNDAMENTAL REQUIREMENTS 12 2.2 COMPLIANCE CRITERIA 12 2.2.1 Foundation 12 2.2.2 Ultimate limit state 12 2.2.3 Damage limitation state 12 3 SEISMIC ACTION 13 3.1 DEFINITION OF THE SEISMIC INPUT 13 3.2 ELASTIC RESPONSE SPECTRUM 13 3.3 DESIGN RESPONSE SPECTRUM 13 3.4 TIME-HISTORY REPRESENTATION 13 3.5 LONG PERIOD COMPONENTS OF THE MOTION AT A POINT 13 3.6 GROUND MOTION COMPONENTS 14 4 DESIGN OF EARTHQUAKE RESISTANT TOWERS, MASTS AND CHIMNEYS 15 4.1 IMPORTANCE CLASSES AND IMPORTANCE FACTORS 15 4.2 MODELLING RULES AND ASSUMPTIONS 15 4.2.1 Number of degrees of freedom 15 4.2.2 Masses 16 4.2.3 Stiffness 16 4.2.4 Damping 17 4.2.5 Soil-structure interaction 17 4.3 METHODS OF ANALYSIS 18 4.3.1 Applicable methods 18 4.3.2 Lateral force method 18 4.3.2.1 General 18 4.3.2.2 Seismic forces 19 4.3.3 Modal response spectrum analysis 19 4.3.3.1 General 19 4.3.3.2 Number of modes 19 4.3.3.3 Combination of modes 19 4.4 COMBINATIONS OF THE EFFECTS OF THE COMPONENTS OF THE SEISMIC ACTION 20 4.5 COMBINATIONS OF THE SEISMIC ACTION WITH OTHER ACTIONS 20 4.6 DISPLACEMENTS 20 4.7 SAFETY VERIFICATIONS 20 4.7.1 Ultimate limit state 20 4.7.2 Resistance condition of the structural elements 20



EN 1998-6:2005 (E) 3 4.7.3 Second order effects 21 4.7.4 Resistance of connections 21 4.7.5 Stability 21 4.7.6 Ductility and energy dissipation condition 22 4.7.7 Foundations 22 4.7.8 Guys and fittings 22 4.8 THERMAL EFFECTS 22 4.9 DAMAGE LIMITATION STATE 22 4.10 BEHAVIOUR FACTOR 23 4.10.1 General 23 4.10.2 Values of modification factor kr 23 5 SPECIFIC RULES FOR REINFORCED CONCRETE CHIMNEYS 25 5.1 SCOPE 25 5.2 DESIGN FOR DISSIPATIVE BEHAVIOUR 25 5.3 DETAILING OF THE REINFORCEMENT 26 5.3.1 Minimum reinforcement (vertical and horizontal) 26 5.3.2 Minimum reinforcement around openings 27 5.4 SPECIAL RULES FOR ANALYSIS AND DESIGN 27 5.5 DAMAGE LIMITATION STATE 28 6 SPECIAL RULES FOR STEEL CHIMNEYS 29 6.1 DESIGN FOR DISSIPATIVE BEHAVIOUR 29 6.2 MATERIALS 29 6.2.1 General 29 6.2.2 Mechanical properties for structural carbon steels 30 6.2.3 Mechanical properties of stainless steels 30 6.2.4 Connections 30 6.3 DAMAGE LIMITATION STATE 30
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