1、BRITISH STANDARDBS EN 1998-1:2004Eurocode 8: Design of structures for earthquake resistance Part 1: General rules, seismic actions and rules for buildingsICS 91.120.25g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g5
2、3g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58Incorporating corrigendumJuly 2009 and January 2011BS EN 1998-1:2004 +A1:2013Incorporating corrigendum July 2009, January 2011 and March 2013BS EN 1998-1:2004+A1:2013ISBN 978 0 580 77499 7Amendments/corrigenda issued since publicatio
3、nDate Comments28 February 2010 Implementation of CEN corrigendum July 200931 January 2011 Correction to title of Table 7.331 May 2013 Implementation of CEN amendment A1:201331 May 2013 Implementation of CEN correction notice 27 March 2013: Date of withdrawal of conflicting national standards correct
4、ed in EN Foreword to amendment A1This British Standard was published under the authority of the Standards Policy and Strategy Committee on 8 April 2005 The British Standards Institution 2013. Published by BSI Standards Limited 2013National forewordThis British Standard is the UK implementation of EN
5、 1998-1:2004+A1:2013, incorporating corrigendum July 2009. It supersedes BS EN 1998-1:2004, which is withdrawn.The start and finish of text introduced or altered by corrigendum is indicated in the text by tags. Text altered by CEN corrigendum July 2009 is indicated in the text by .The start and fini
6、sh of text introduced or altered by amendment is indicated in the text by tags. Tags indicating changes to CEN text carry the number of the CEN amendment. For example, text altered by CEN amendment A1 is indicated by .The UK participation in its preparation was entrusted by Technical Committee B/525
7、, Building and civil engineering structures, to Subcommittee B/525/8, Structures in seismic regions.A list of organizations represented on this subcommittee can be obtained on request to its secretary.Where a normative part of this EN allows for a choice to be made at the national level, the range a
8、nd possible choice will be given in the normative text, and a note will qualify it as a Nationally Determined Parameter (NDP). NDPs can be a specific value for a factor, a specific level or class, a particular method or a particular application rule if several are proposed in the EN. To enable BS EN
9、 1998-1:2004+A1:2013 to be used in the UK, the latest version of the NA to this Standard containing these NDPs should also be used. At the time of publication, it is NA to BS EN 1998-1:2004. There are generally no requirements in the UK to consider seismic loading, and the whole of the UK may be con
10、sidered an area of very low seismicity in which the provisions of EN 1998 need not apply. However, certain types of structure, by reason of their function, location or form, may warrant an explicit consideration of seismic actions. Background information on the circumstances in which this might appl
11、y in the UK has been published in the BSI document PD 6698.The publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.EUROPEAN STANDARDNORME
12、 EUROPENNEEUROPISCHE NORMEN 1998-1December 2004ICS 91.120.25 Supersedes ENV 1998-1-1:1994, ENV 1998-1-2:1994,ENV 1998-1-3:1995 English versionEurocode 8: Design of structures for earthquake resistance -Part 1: General rules, seismic actions and rules for buildingsEurocode 8: Calcul des structures po
13、ur leur rsistance auxsismes - Partie 1: Rgles gnrales, actions sismiques etrgles pour les btimentsEurocode 8: Auslegung von Bauwerken gegen Erdbeben -Teil 1: Grundlagen, Erdbebeneinwirkungen und Regeln frHochbautenThis European Standard was approved by CEN on 23 April 2004.CEN members are bound to c
14、omply 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 Central Se
15、cretariat 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 Central Secretariat has the same status as the offi
16、cialversions.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,
17、Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2004 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No.
18、 EN 1998-1:2004: EIncorporating corrigendum July 2009EN 1998-1:2004+A1February 2013Incorporating corrigendum July 2009EN 1998-1:2004 (E) 2 Contents Page FOREWORD8 1 GENERAL.15 1.1 SCOPE 15 1.1.1 Scope of EN 1998.15 1.1.2 Scope of EN 1998-1 .15 1.1.3 Further Parts of EN 199816 1.2 NORMATIVE REFERENCE
19、S16 1.2.1 General reference standards16 1.2.2 Reference Codes and Standards17 1.3 ASSUMPTIONS 17 1.4 DISTINCTION BETWEEN PRINCIPLES AND APPLICATION RULES .17 1.5 TERMS AND DEFINITIONS .17 1.5.1 Terms common to all Eurocodes 17 1.5.2 Further terms used in EN 1998.17 1.6 SYMBOLS .19 1.6.1 General .19
20、1.6.2 Further symbols used in Sections 2 and 3 of EN 1998-119 1.6.3 Further symbols used in Section 4 of EN 1998-1 .20 1.6.4 Further symbols used in Section 5 of EN 1998-1 .21 1.6.5 Further symbols used in Section 6 of EN 1998-1 .24 1.6.6 Further symbols used in Section 7 of EN 1998-1 .25 1.6.7 Furt
21、her symbols used in Section 8 of EN 1998-1 .27 1.6.8 Further symbols used in Section 9 of EN 1998-1 .27 1.6.9 Further symbols used in Section 10 of EN 1998-1 .28 1.7 S.I. UNITS 28 2 PERFORMANCE REQUIREMENTS AND COMPLIANCE CRITERIA 29 2.1 FUNDAMENTAL REQUIREMENTS.29 2.2 COMPLIANCE CRITERIA30 2.2.1 Ge
22、neral .30 2.2.2 Ultimate limit state .30 2.2.3 Damage limitation state31 2.2.4 Specific measures .32 2.2.4.1 Design . 32 2.2.4.2 Foundations. 32 2.2.4.3 Quality system plan. 32 3 GROUND CONDITIONS AND SEISMIC ACTION33 3.1 GROUND CONDITIONS 33 3.1.2 Identification of ground types.33 3.2 SEISMIC ACTIO
23、N .35 3.2.1 Seismic zones .35 3.2.2 Basic representation of the seismic action36 3.2.2.1 General 36 3.2.2.2 Horizontal elastic response spectrum 37 3.2.2.3 Vertical elastic response spectrum 40 3.2.2.4 Design ground displacement . 41 3.2.2.5 Design spectrum for elastic analysis . 41 3.2.3 Alternativ
24、e representations of the seismic action .42 3.2.3.1 Time - history representation 42 3.2.3.2 Spatial model of the seismic action. 43 3.2.4 Combinations of the seismic action with other actions.44 4 DESIGN OF BUILDINGS .45 4.1 GENERAL .45 BS EN 1998-1:2004BS EN 1998-1:2004+A1:2013EN 1998-1:2004+A1:20
25、13 (E)EN 1998-1:2004 (E) 3 4.1.1 Scope 45 4.2 CHARACTERISTICS OF EARTHQUAKE RESISTANT BUILDINGS 45 4.2.1 Basic principles of conceptual design.45 4.2.1.1 Structural simplicity 45 4.2.1.2 Uniformity, symmetry and redundancy. 45 4.2.1.3 Bi-directional resistance and stiffness . 46 4.2.1.4 Torsional re
26、sistance and stiffness 46 4.2.1.5 Diaphragmatic behaviour at storey level. 46 4.2.1.6 Adequate foundation . 47 4.2.2 Primary and secondary seismic members.47 4.2.3 Criteria for structural regularity48 4.2.3.1 General 48 4.2.3.2 Criteria for regularity in plan. 49 4.2.3.3 Criteria for regularity in e
27、levation. 50 4.2.4 Combination coefficients for variable actions 52 4.2.5 Importance classes and importance factors 52 4.3 STRUCTURAL ANALYSIS .53 4.3.1 Modelling .53 4.3.2 Accidental torsional effects 54 4.3.3 Methods of analysis54 4.3.3.1 General 54 4.3.3.2 Lateral force method of analysis . 56 4.
28、3.3.3 Modal response spectrum analysis 59 4.3.3.4 Non-linear methods. 61 4.3.3.5 Combination of the effects of the components of the seismic action 64 4.3.4 Displacement calculation66 4.3.5 Non-structural elements66 4.3.5.1 General 66 4.3.5.2 Verification . 67 4.3.5.3 Importance factors. 68 4.3.5.4
29、Behaviour factors 68 4.3.6 Additional measures for masonry infilled frames.68 4.3.6.1 General 68 4.3.6.2 Requirements and criteria 69 4.3.6.3 Irregularities due to masonry infills 69 4.3.6.4 Damage limitation of infills 70 4.4 SAFETY VERIFICATIONS .71 4.4.1 General .71 4.4.2 Ultimate limit state .71
30、 4.4.2.1 General 71 4.4.2.2 Resistance condition 71 4.4.2.3 Global and local ductility condition 72 4.4.2.4 Equilibrium condition . 74 4.4.2.5 Resistance of horizontal diaphragms. 74 4.4.2.6 Resistance of foundations 74 4.4.2.7 Seismic joint condition 75 4.4.3 Damage limitation 76 4.4.3.1 General 76
31、 4.4.3.2 Limitation of interstorey drift 76 5 SPECIFIC RULES FOR CONCRETE BUILDINGS .78 5.1 GENERAL .78 5.1.1 Scope 78 5.1.2 Terms and definitions .78 5.2 DESIGN CONCEPTS .80 5.2.1 Energy dissipation capacity and ductility classes .80 5.2.2 Structural types and behaviour factors81 5.2.2.1 Structural
32、 types . 81 5.2.2.2 Behaviour factors for horizontal seismic actions. 82 5.2.3 Design criteria 84 5.2.3.1 General 84 5.2.3.2 Local resistance condition. 84 5.2.3.3 Capacity design rule 84 5.2.3.4 Local ductility condition . 84 BS EN 1998-1:2004BS EN 1998-1:2004+A1:2013EN 1998-1:2004+A1:2013 (E)EN 19
33、98-1:2004 (E) 4 5.2.3.5 Structural redundancy . 86 5.2.3.6 Secondary seismic members and resistances. 86 5.2.3.7 Specific additional measures. 86 5.2.4 Safety verifications.87 5.3 DESIGN TO EN 1992-1-1 87 5.3.1 General .87 5.3.2 Materials.88 5.3.3 Behaviour factor .88 5.4 DESIGN FOR DCM88 5.4.1 Geom
34、etrical constraints and materials88 5.4.1.1 Material requirements . 88 5.4.1.2 Geometrical constraints. 88 5.4.2 Design action effects 89 5.4.2.1 General 89 5.4.2.2 Beams 89 5.4.2.3 Columns 91 5.4.2.4 Special provisions for ductile walls. 92 5.4.2.5 Special provisions for large lightly reinforced wa
35、lls. 94 5.4.3 ULS verifications and detailing95 5.4.3.1 Beams 95 5.4.3.2 Columns 97 5.4.3.3 Beam-column joints 100 5.4.3.4 Ductile Walls. 100 5.4.3.5 Large lightly reinforced walls . 104 5.5 DESIGN FOR DCH 106 5.5.1 Geometrical constraints and materials106 5.5.1.1 Material requirements . 106 5.5.1.2
36、 Geometrical constraints. 106 5.5.2 Design action effects 107 5.5.2.1 Beams 107 5.5.2.2 Columns 107 5.5.2.3 Beam-column joints 107 5.5.2.4 Ductile Walls. 108 5.5.3 ULS verifications and detailing109 5.5.3.1 Beams 109 5.5.3.2 Columns 111 5.5.3.3 Beam-column joints 112 5.5.3.4 Ductile Walls. 114 5.5.3
37、.5 Coupling elements of coupled walls 119 5.6 PROVISIONS FOR ANCHORAGES AND SPLICES .120 5.6.1 General .120 5.6.2 Anchorage of reinforcement.120 5.6.2.1 Columns 120 5.6.2.2 Beams 120 5.6.3 Splicing of bars.122 5.7 DESIGN AND DETAILING OF SECONDARY SEISMIC ELEMENTS .123 5.8 CONCRETE FOUNDATION ELEMEN
38、TS 123 5.8.1 Scope 123 5.8.2 Tie-beams and foundation beams .124 5.8.3 Connections of vertical elements with foundation beams or walls.125 5.8.4 Cast-in-place concrete piles and pile caps 125 5.9 LOCAL EFFECTS DUE TO MASONRY OR CONCRETE INFILLS .126 5.10 PROVISIONS FOR CONCRETE DIAPHRAGMS .127 5.11
39、PRECAST CONCRETE STRUCTURES127 5.11.1 General.127 5.11.1.1 Scope and structural types. 127 5.11.1.2 Evaluation of precast structures 128 5.11.1.3 Design criteria. 129 5.11.1.4 Behaviour factors 130 5.11.1.5 Analysis of transient situation . 130 5.11.2 Connections of precast elements131 5.11.2.1 Gene
40、ral provisions 131 5.11.2.2 Evaluation of the resistance of connections. 132 5.11.3 Elements 132 BS EN 1998-1:2004BS EN 1998-1:2004+A1:2013EN 1998-1:2004+A1:2013 (E)90EN 1998-1:2004 (E) 5 5.11.3.1 Beams 132 5.11.3.2 Columns 132 5.11.3.3 Beam-column joints 133 5.11.3.4 Precast large-panel walls. 133
41、5.11.3.5 Diaphragms . 135 6 SPECIFIC RULES FOR STEEL BUILDINGS .137 6.1 GENERAL .137 6.1.1 Scope 137 6.1.2 Design concepts137 6.1.3 Safety verifications.138 6.2 MATERIALS138 6.3 STRUCTURAL TYPES AND BEHAVIOUR FACTORS.140 6.3.1 Structural types.140 6.3.2 Behaviour factors143 6.4 STRUCTURAL ANALYSIS .
42、144 6.5 DESIGN CRITERIA AND DETAILING RULES FOR DISSIPATIVE STRUCTURAL BEHAVIOUR COMMON TO ALL STRUCTURAL TYPES144 6.5.1 General .144 6.5.2 Design criteria for dissipative structures 144 6.5.3 Design rules for dissipative elements in compression or bending 145 6.5.4 Design rules for parts or element
43、s in tension145 6.5.5 Design rules for connections in dissipative zones 145 6.6 DESIGN AND DETAILING RULES FOR MOMENT RESISTING FRAMES146 6.6.1 Design criteria 146 6.6.2 Beams .146 6.6.3 Columns147 6.6.4 Beam to column connections149 6.7 DESIGN AND DETAILING RULES FOR FRAMES WITH CONCENTRIC BRACINGS
44、.150 6.7.1 Design criteria 150 6.7.2 Analysis 151 6.7.3 Diagonal members152 6.7.4 Beams and columns152 6.8 DESIGN AND DETAILING RULES FOR FRAMES WITH ECCENTRIC BRACINGS .153 6.8.1 Design criteria 153 6.8.2 Seismic links.154 6.8.3 Members not containing seismic links157 6.8.4 Connections of the seism
45、ic links 158 6.9 DESIGN RULES FOR INVERTED PENDULUM STRUCTURES 158 6.10 DESIGN RULES FOR STEEL STRUCTURES WITH CONCRETE CORES OR CONCRETE WALLS AND FOR MOMENT RESISTING FRAMES COMBINED WITH CONCENTRIC BRACINGS OR INFILLS159 6.10.1 Structures with concrete cores or concrete walls .159 6.10.2 Moment r
46、esisting frames combined with concentric bracings.159 6.10.3 Moment resisting frames combined with infills.159 6.11 CONTROL OF DESIGN AND CONSTRUCTION .159 7 SPECIFIC RULES FOR COMPOSITE STEEL CONCRETE BUILDINGS .161 7.1 GENERAL .161 7.1.1 Scope 161 7.1.2 Design concepts161 7.1.3 Safety verification
47、s.162 7.2 MATERIALS163 7.2.1 Concrete163 7.2.2 Reinforcing steel.163 7.2.3 Structural steel163 7.3 STRUCTURAL TYPES AND BEHAVIOUR FACTORS.163 7.3.1 Structural types.163 7.3.2 Behaviour factors165 7.4 STRUCTURAL ANALYSIS .165 7.4.1 Scope 165 7.4.2 Stiffness of sections166 BS EN 1998-1:2004BS EN 1998-
48、1:2004+A1:2013EN 1998-1:2004+A1:2013 (E)EN 1998-1:2004 (E) 6 7.5 DESIGN CRITERIA AND DETAILING RULES FOR DISSIPATIVE STRUCTURAL BEHAVIOUR COMMON TO ALL STRUCTURAL TYPES166 7.5.1 General .166 7.5.2 Design criteria for dissipative structures 166 7.5.3 Plastic resistance of dissipative zones 167 7.5.4
49、Detailing rules for composite connections in dissipative zones167 7.6 RULES FOR MEMBERS.170 7.6.1 General .170 7.6.2 Steel beams composite with slab 172 7.6.3 Effective width of slab174 7.6.4 Fully encased composite columns 176 7.6.5 Partially-encased members .178 7.6.6 Filled Composite Columns .179 7.7 DESIGN AND DETAILING RULES FOR MOMENT FRAMES.180 7.7.1 Specific criteria.180 7.7.2 Analysis 180 7.7.3 Rules for beams and columns.180 7.7.4 Beam to column connections181 7.7.5 Condition for disregarding the composite character of beams with slab. .181 7.8 DESIGN AND DETA
