BS_EN_1992-1-1-2004_欧洲法规2_混凝土结构设计_一般规则和建筑规则.pdf

BRITISH STANDARD BS EN 1992-1-12004 Eurocode 2 Design of concrete structures Part 1-1 General rules and rules for buildings The European Standard EN 1992-1-12004 has the status of a British Standard ICS 91.010.30; 91.080.40 Copyright European Committee for Standardization Provided by IHS under license with CEN Not for ResaleNo reproduction or networking permitted without license from IHS --,,,,--,,,,,,,--- BS EN 1992-1-12004 This British Standard, was published under the authority of the Standards Policy and Strategy Committee on 23 December 2004 BSI 23 December 2004 ISBN 0 580 45191 7 National foreword This British Standard is the official English language version of EN 1992-1-12004. It supersedes DD ENV 1992-1-11992, DD ENV 1992-1-31996, DD ENV 1992-1-41996, DD ENV 1992-1-51996, DD ENV 1992-1-61996 which will be withdrawn. The structural Eurocodes are divided into packages by grouping Eurocodes for each of the main materials, concrete, steel, composite concrete and steel, timber, masonry and aluminium, this is to enable a common date of withdrawal DOW for all the relevant parts that are needed for a particular design. The conflicting national standards will be withdrawn at the end of the coexistence period, after all the EN Eurocodes of a package are available. Following publication of the EN, there is a period of 2 years allowed for the national calibration period during which the National Annex is issued, followed by a three year coexistence period. During the coexistence period Member States will be encouraged to adapt their national provisions to withdraw conflicting national rules before the end of the coexistent period. The Commission in consultation with Member States is expected to agree the end of the coexistence period for each package of Eurocodes. At the end of this coexistence period, the national standards will be withdrawn. In the UK, the corresponding national standards are BS 8110-11997, Structural use of concrete Part 1 Code of practice for design and construction; BS 8110-21985, Structural use of concrete Part 2 Code of practice for special circumstances; BS 8110-31985, Structural use of concrete Part 3 Design charts for singly reinforced beams, doubly reinforced beams and rectangular columns; and based on this transition period, these standards will be withdrawn on a date to be announced. Amendments issued since publication Amd. No. DateComments Copyright European Committee for Standardization Provided by IHS under license with CEN Not for ResaleNo reproduction or networking permitted without license from IHS --,,,,--,,,,,,,--- BS EN 1992-1-12004 i The UK participation in its preparation was entrusted by Technical Committee B/525, Building and civil engineering structures, to Subcommittee B/525/2, Structural use of concrete, which has the responsibility to 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 and 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 or a particular application rule if several are proposed in the EN. To enable EN 1992-1-1 to be used in the UK, the NDPs will be published in a National Annex, which will be made available by BSI in due course, after public consultation has taken place. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This 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 does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, page i and ii, the EN title page, pages 2 to 225 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests ined; monitor related international and European developments and promulgate them in the UK. Copyright European Committee for Standardization Provided by IHS under license with CEN Not for ResaleNo reproduction or networking permitted without license from IHS --,,,,--,,,,,,,--- ii blank Copyright European Committee for Standardization Provided by IHS under license with CEN Not for ResaleNo reproduction or networking permitted without license from IHS --,,,,--,,,,,,,--- w w w . b z f x w . c o m EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1992-1-1 December 2004 ICS 91.010.30; 91.080.40Supersedes ENV 1992-1-11991, ENV 1992-1-31994, ENV 1992-1-41994, ENV 1992-1-51994, ENV 1992-1- 61994, ENV 1992-31998 English version Eurocode 2 Design of concrete structures - Part 1-1 General rules and rules for buildings Eurocode 2 Calcul des structures en bton - Partie 1-1 Rgles gnrales et rgles pour les btiments Eurocode 2 Bemessung und konstruktion von Stahlbeton- und Spannbetontragwerken - Teil 1-1 Allgemeine Bemessungsregeln und Regeln fr den Hochbau This European Standard was approved by CEN on 16 April 2004. 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 COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre rue de Stassart, 36 B-1050 Brussels 2004 CENAll rights of exploitation in any and by any means reserved worldwide for CEN national Members. Ref. No. EN 1992-1-12004 E Copyright European Committee for Standardization Provided by IHS under license with CEN Not for ResaleNo reproduction or networking permitted without license from IHS --,,,,--,,,,,,,--- w w w . b z f x w . c o m EN 1992-1-12004 E 2 Contents List 1. General 1.1 Scope 1.1.1 Scope of Eurocode 2 1.1.2 Scope of Part 1-1 of Eurocode 2 1.2 Normative references 1.2.1 General reference standards 1.2.2 Other reference standards 1.3 Assumptions 1.4 Distinction between principles and application rules 1.5 Definitions 1.5.1 General 1.5.2 Additional terms and definitions used in this Standard 1.5.2.1 Precast structures 1.5.2.2 Plain or lightly reinforced concrete members 1.5.2.3 Unbonded and external tendons 1.5.2.4 Prestress 1.6 Symbols 2. Basis of design 2.1 Requirements 2.1.1 Basic requirements 2.1.2 Reliability management 2.1.3 Design working life, durability and quality management 2.2 Principles of limit state design 2.3 Basic variables 2.3.1 Actions and environment influences 2.3.1.1 General 2.3.1.2 Thermal effects 2.3.1.3 Differential settlements/movements 2.3.1.4 Prestress 2.3.2 Material and product properties 2.3.2.1 General 2.3.2.2 Shrinkage and creep 2.3.3 Deations of concrete 2.3.4 Geometric data 2.3.4.1 General 2.3.4.2 Supplementary requirements for cast in place piles 2.4 Verification by the partial factor 2.4.1 General 2.4.2 Design values 2.4.2.1 Partial factor for shrinkage action 2.4.2.2 Partial factors for prestress 2.4.2.3 Partial factor for fatigue loads 2.4.2.4 Partial factors for materials 2.4.2.5 Partial factors for materials for foundations 2.4.3 Combinations of actions 2.4.4 Verification of static equilibrium - EQU 2.5 Design assisted by testing 2.6 Supplementary requirements for foundations 2.7 Requirements for fastenings Copyright European Committee for Standardization Provided by IHS under license with CEN Not for ResaleNo reproduction or networking permitted without license from IHS --,,,,--,,,,,,,--- w w w . b z f x w . c o m EN 1992-1-12004 E 3 3. Materials 3.1 Concrete 3.1.1 General 3.1.2 Strength 3.1.3 Elastic deation 3.1.4 Creep and shrinkage 3.1.5 Stress-strain relation for non-linear structural analysis 3.1.6 Design compressive and tensile strengths 3.1.7 Stress-strain relations for the design of sections 3.1.8 Flexural tensile strength 3.1.9 Confined concrete 3.2 Reinforcing steel 3.2.1 General 3.2.2 Properties 3.2.3 Strength 3.2.4 Ductility characteristics 3.2.5 Welding 3.2.6 Fatigue 3.2.7 Design assumptions 3.3 Prestressing steel 3.3.1 General 3.3.2 Properties 3.3.3 Strength 3.3.4 Ductility characteristics 3.3.5 Fatigue 3.3.6 Design assumptions 3.3.7 Prestressing tendons in sheaths 3.4 Prestressing devices 3.4.1 Anchorages and couplers 3.4.1.1 General 3.4.1.2 Mechanical properties 3.4.1.2.1 Anchored tendons 3.4.1.2.2 Anchored devices and anchorage zones 3.4.2 External non-bonded tendons 3.4.2.1 General 3.4.2.2 Anchorages 4. Durability and cover to reinforcement 4.1 General 4.2 Environmental conditions 4.3 Requirements for durability 4.4 s of verifications 4.4.1 Concrete cover 4.4.1.1 General 4.4.1.2 Minimum cover, cmin 4.4.1.3 Allowance in design for tolerance 5. Structural analysis 5.1 General 5.1.1 General requirements 5.1.2 Special requirements for foundations 5.1.3 Load cases and combinations 5.1.4 Second order effects Copyright European Committee for Standardization Provided by IHS under license with CEN Not for ResaleNo reproduction or networking permitted without license from IHS --,,,,--,,,,,,,--- w w w . b z f x w . c o m EN 1992-1-12004 E 4 5.2 Geometric imperfections 5.3 Idealisation of the structure 5.3.1 Structural models for overall analysis 5.3.2 Geometric data 5.3.2.1 Effective width of flanges all limit states 5.3.2.2 Effective span of beams and slabs in buildings 5.4 Linear elastic analysis 5.5 Linear analysis with limited redistribution 5.6 Plastic analysis 5.6.1 General 5.6.2 Plastic analysis for beams, frames and slabs 5.6.3 Rotation capacity 5.6.4 Analysis with struts and tie models 5.7 Non-linear analysis 5.8 Analysis of second order effects with axial load 5.8.1 Definitions 5.8.2 General 5.8.3 Simplified criteria for second order effects 5.8.3.1 Slenderness Criterion for isolated members 5.8.3.2 Slenderness and effective length of isolated members 5.8.3.3 Global second order effects in buildings 5.8.4 Creep 5.8.5 s of analysis 5.8.6 General 5.8.7 based on nominal stiffness 5.8.7.1 General 5.8.7.2 Nominal stiffness 5.8.7.3 Moment magnification factor 5.8.8 based on nominal curvature 5.8.8.1 General 5.8.8.2 Bending moments 5.8.8.3 Curvature 5.8.9 Biaxial bending 5.9 Lateral instability of slender beams 5.10 Prestressed members and structures 5.10.1 General 5.10.2 Prestressing force during tensioning 5.10.2.1 Maximum stressing force 5.10.2.2 Limitation of concrete stress 5.10.2.3 Measurements 5.10.3 Prestress force 5.10.4 Immediate losses of prestress for pre-tensioning 5.10.5 Immediate losses of prestress for post-tensioning 5.10.5.1 Losses due to the instantaneous deation of concrete 5.10.5.2 Losses due to friction 5.10.5.3 Losses at anchorage 5.10.6 Time dependent losses of prestress for pre- and post-tensioning 5.10.7 Consideration of prestress in analysis 5.10.8 Effects of prestressing at ultimate limit state 5.10.9 Effects of prestressing at serviceability limit state and limit state of fatigue 5.11 Analysis for some particular structural members Copyright European Committee for Standardization Provided by IHS under license with CEN Not for ResaleNo reproduction or networking permitted without license from IHS --,,,,--,,,,,,,--- w w w . b z f x w . c o m EN 1992-1-12004 E 5 6. Ultimate limit states ULS 6.1 Bending with or without axial force 6.2 Shear 6.2.1 General verification procedure 6.2.2 Members not requiring design shear reinforcement 6.2.3 Members requiring design shear reinforcement 6.2.4 Shear between web and flanges of T-sections 6.2.5 Shear at the interface between concretes cast at different times 6.3 Torsion 6.3.1 General 6.3.2 Design procedure 6.3.3 Warping torsion 6.4 Punching 6.4.1 General 6.4.2 Load distribution and basic control perimeter 6.4.3 Punching shear calculation 6.4.4 Punching shear resistance of slabs and column bases without shear reinforcement 6.4.5 Punching shear resistance of slabs and column bases with shear reinforcement 6.5 Design with strut and tie models 6.5.1 General 6.5.2 Struts 6.5.3 Ties 6.5.4 Nodes 6.6 Anchorages and laps 6.7 Partially loaded areas 6.8 Fatigue 6.8.1 Verification conditions 6.8.2 Internal forces and stresses for fatigue verification 6.8.3 Combination of actions 6.8.4 Verification procedure for reinforcing and prestressing steel 6.8.5 Verification using damage equivalent stress range 6.8.6 Other verifications 6.8.7 Verification of concrete under compression or shear 7. Serviceability limit states SLS 7.1 General 7.2 Stress limitation 7.3 Crack control 7.3.1 General considerations 7.3.2 Minimum reinforcement areas 7.3.3 Control of cracking without direct calculation 7.3.4 Calculation of crack widths 7.4 Deflection control 7.4.1 General considerations 7.4.2 Cases where calculations may be omitted 7.4.3 Checking deflections by calculation 8 Detailing of reinforcement and prestressing tendons - General 8.1 General 8.2 Spacing of bars 8.3 Permissible mandrel diameters for bent bars 8.4 Anchorage of longitudinal reinforcement 8.4.1 General Copyright European Committee for Standardization Provided by IHS under license with CEN Not for ResaleNo reproduction or networking permitted without license from IHS --,,,,--,,,,,,,--- w w w . b z f x w . c o m EN 1992-1-12004 E 6 8.4.2 Ultimate bond stress 8.4