FprEN 1998-2
(Main)Eurocode 8 - Design of structures for earthquake resistance - Part 2: Bridges
Eurocode 8 - Design of structures for earthquake resistance - Part 2: Bridges
EN 1998-2 is intended to be applied to the design of new bridges in seismic regions. It covers the design of reinforced concrete, steel and composite steel-concrete bridges and provides guidance for the design of timber bridges.
EN 1998-2 is applicable to the seismic design of bridges exploiting ductility in structural members or through the use of antiseismic devices. When ductility is exploited, this part primarily covers bridges in which the horizontal seismic actions are mainly resisted through bending of the piers or at the abutments; i.e. of bridges composed of vertical or nearly vertical pier systems supporting the traffic deck superstructure. It is also applicable to the seismic design of arched bridges, although its provisions should not be considered as fully covering these cases.
Suspension bridges and masonry bridges, moveable bridges and floating bridges are not included in the scope of EN 1998-2.
Eurocode 8 - Auslegung von Bauwerken gegen Erdbeben - Teil 2: Brücken
Eurocode 8 - Calcul des structures pour leur résistance aux séismes - Partie 2: Ponts
Le présent document s'applique au dimensionnement et à la vérification des ponts neufs dans les régions sismiques. Il donne des règles générales pour le dimensionnement et la vérification des ponts des classes de conséquences CC1, CC2 et CC3, telles que définies dans l'EN 1990:2023, A.2.
NOTE 1 L'EN 1998 2 couvre le calcul des ponts en béton armé, en acier et des ponts mixtes acier-béton, à l'exception des piles précontraintes. Des recommandations pour le dimensionnement des ponts en bois sont données dans l'Annexe C informative.
NOTE 2 L'évaluation des ponts existants est couverte dans l'EN 1998 3.
(2) Sauf indication contraire, l'EN 1998 1 1 et l'EN 1998 5 s'appliquent.
(3) L'EN 1998 2 est applicable en complément des autres Eurocodes pertinents.
NOTE L'EN 1998 2 ne contient que les dispositions qui sont utilisées pour la conception des ponts neufs en zone sismique, en plus des dispositions contenues dans les autres Eurocodes pertinents. À cet égard, l'EN 1998 2 complète les autres Eurocodes.
(4) L'EN 1998 2 fournit des exigences de performance de base et des critères de conformité applicables aux ponts neufs dans les régions sismiques.
(5) L'EN 1998 2 est applicable au calcul sismique des ponts exploitant la ductilité des éléments structuraux ou par l'utilisation de dispositifs antisismiques.
(6) L'EN 1998 2 donne des règles de dispositions constructives pour la ductilité des éléments structuraux des ponts conçus pour exploiter la ductilité comme moyen de protection sismique. Lorsque la ductilité est exploitée, l'EN 1998 2 couvre en premier lieu les ponts pour lesquels la résistance aux actions sismiques horizontales est principalement assurée par la flexion des piles ou des culées, c'est-à-dire les ponts composés de systèmes de piles verticales ou presque verticales sur lesquelles repose la structure du tablier supportant la circulation.
(7) L'EN 1998 2 donne des règles spécifiques pour les ponts équipés de dispositifs antisismiques, pour les ponts à haubans et extradossés et pour les ponts intégraux.
(8) L'EN 1998 2 est également applicable au dimensionnement sismique des ponts en arc, bien qu'il convienne que ses dispositions ne soient pas considérées comme couvrant entièrement ce cas.
NOTE Les ponts suspendus et les ponts en maçonnerie, les ponts mobiles et les ponts flottants ne sont pas inclus dans le domaine d'application de la présente partie.
Evrokod 8 - Projektiranje konstrukcij na potresnih območjih - 2. del: Mostovi
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
oSIST prEN 1998-2:2023
01-maj-2023
Evrokod 8 - Projektiranje konstrukcij na potresnih območjih - 2. del: Mostovi
Eurocode 8 - Design of structures for earthquake resistance - Part 2: Bridges
Eurocode 8 - Auslegung von Bauwerken gegen Erdbeben - Teil 2: Brücken
Eurocode 8 - Calcul des structures pour leur résistance aux séismes - Partie 2: Ponts
Ta slovenski standard je istoveten z: prEN 1998-2
ICS:
91.120.25 Zaščita pred potresi in Seismic and vibration
vibracijami protection
93.040 Gradnja mostov Bridge construction
oSIST prEN 1998-2:2023 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
oSIST prEN 1998-2:2023
oSIST prEN 1998-2:2023
DRAFT
EUROPEAN STANDARD
prEN 1998-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2023
ICS Will supersede EN 1998-2:2005
English Version
Eurocode 8 - Design of structures for earthquake
resistance - Part 2: Bridges
Eurocode 8 - Calcul des structures pour leur résistance Eurocode 8 - Auslegung von Bauwerken gegen
aux séismes - Partie 2: Ponts Erdbeben - Teil 2: Brücken
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 250.
If this draft becomes a European Standard, 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.
This draft European Standard was established by CEN 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 CEN-CENELEC
Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2023 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 1998-2:2023 E
worldwide for CEN national Members.
oSIST prEN 1998-2:2023
prEN 1998-2:2022 (E)
Contents Page
European foreword . 5
Introduction . 6
1 Scope . 8
1.1 Scope of EN 1998-2 . 8
1.2 Assumptions . 8
2 Normative references . 9
3 Terms, definitions and symbols . 9
3.1 Terms and definitions . 9
3.2 Symbols and abbreviations . 10
3.2.1 General. 10
3.2.2 Symbols . 11
3.2.3 Abbreviations . 18
3.3 S.I. Units . 19
4 Basis of design . 19
4.1 Basic requirements . 19
4.2 Seismic actions . 19
4.2.1 General. 19
4.2.2 Spatial variability of the seismic action . 21
4.3 Characteristics of earthquake resistant bridges . 21
4.3.1 Conceptual design . 21
4.3.2 Primary and secondary seismic members. 22
4.3.3 Resistance and ductility conditions – Capacity design rules . 22
4.3.4 Connections . 23
4.3.5 Control of displacements – Detailing of ancillary elements . 23
4.3.6 Choice of ductility class – Limits of seismic action for design to DC1, DC2 and DC3 . 24
4.3.7 Simplified criteria . 25
5 Modelling and structural analysis . 25
5.1 Modelling . 25
5.1.1 General. 25
5.1.2 Torsional effects about a vertical axis . 27
5.1.3 Second-order effects . 28
5.2 Methods of analysis . 29
5.2.1 General. 29
5.2.2 Force-based approach . 29
5.2.3 Displacement-based approach . 35
5.3 Methods of analysis accounting for spatial variability of ground motion . 36
5.3.1 General. 36
5.3.2 Long bridges on uniform soil . 38
5.3.3 Short to medium length bridges on non-uniform soil . 39
5.3.4 Long bridges on non-uniform soil . 39
5.4 Combination of the seismic action with other actions . 40
6 Verifications of structural members to limit states . 41
oSIST prEN 1998-2:2023
prEN 1998-2:2022 (E)
6.1 General . 41
6.2 Material requirements . 41
6.2.1 General . 41
6.2.2 Design for DC2 and DC3 . 41
6.3 Verification of Significant Damage (SD) limit state . 42
6.3.1 General . 42
6.3.2 Capacity design effects . 42
6.3.3 Concrete members . 43
6.3.4 Steel and steel-concrete composite members . 47
6.3.5 Foundations . 48
6.3.6 Connections . 48
6.3.7 Concrete abutments . 49
6.3.8 Verification for the displacement-based approach . 49
6.4 Verification to other limit states . 49
6.4.1 Verification of Near Collapse (NC) limit state . 49
6.4.2 Verification of Damage Limitation (DL) limit state . 50
6.4.3 Verification of Operational (OP) limit state . 50
7 Detailing for ductility . 50
7.1 General . 50
7.2 Concrete piers . 50
7.2.1 General . 50
7.2.2 Longitudinal reinforcement . 50
7.2.3 Critical region . 50
7.2.4 Confinement . 51
7.2.5 Buckling of longitudinal compression reinforcement . 54
7.2.6 Other rules . 54
7.2.7 Hollow piers. 55
7.2.8 Joints adjacent to critical regions . 55
7.3 Steel piers . 57
7.4 Foundations . 57
7.4.1 Spread foundation . 57
7.4.2 Pile foundations . 57
...
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