prEN 1992-1-1
(Main)Eurocode 2 - Design of concrete structures - Part 1-1: General rules and rules for buildings, bridges and civil engineering structures
Eurocode 2 - Design of concrete structures - Part 1-1: General rules and rules for buildings, bridges and civil engineering structures
1.1 Scope of FprEN 1992-1-1
(1) This document gives the general basis for the design of structures in plain, reinforced and prestressed concrete made with normal weight, lightweight and heavyweight aggregates. It gives specific rules for buildings, bridges and civil engineering structures, including temporary structures; additional requirements specific to bridges are given in Annex K. The rules are valid under temperature conditions between −40 °C and +100 °C generally. This document complies with the principles and requirements for the safety, serviceability, durability and robustness of structures, the basis of their design and verification that are given in EN 1990.
(2) This document is only concerned with the requirements for resistance, serviceability, durability, robustness and fire resistance of concrete structures. Other requirements, e.g. concerning thermal or sound insulation, are not considered.
(3) This document does not cover:
- resistance to fire (see EN 1992 1 2);
- fastenings in concrete (see EN 1992 4);
- seismic design (see EN 1998 (all parts));
- particular aspects of special types of civil engineering works (such as dams, pressure vessels);
- structures made with no-fines concrete, aerated or cellular concrete, lightweight aggregate concrete with open structure components;
- structures containing steel sections considered in design (see EN 1994 (all parts)) for composite steel and concrete structures;
- structural parts made of concrete with a smallest value of the upper sieve aggregate size Dlower < 8 mm (or if known Dmax < 8 mm) unless otherwise stated in this Eurocode.
1.2 Assumptions
(1) The assumptions of EN 1990 apply to FprEN 1992-1-1.
(2) It is assumed that the requirements for execution and workmanship given in EN 13670 are complied with.
Eurocode 2 - Bemessung und Konstruktion von Stahlbeton- und Spannbetontragwerken - Teil 1 1: Allgemeine Regeln und Regeln für Hochbauten, Brücken und Ingenieurbauwerke
1.1 Anwendungsbereich von EN 1992, Teil 1 1
(1) Dieses Dokument bildet die allgemeine Grundlage für die Bemessung und Konstruktion von Tragwerken aus unbewehrtem Beton, Stahlbeton und Spannbeton mit normalen, leichten und schweren Gesteinskörnungen zusammen mit spezifischen Regeln für Hochbauten, Brücken und Ingenieurbauwerken, einschließlich temporären Tragwerken, unter Temperaturbedingungen, die im Allgemeinen zwischen −40 °C und +100 °C liegen. Es entspricht den Grundsätzen und Anforderungen an die Tragfähigkeit, Gebrauchstauglichkeit, Dauerhaftigkeit und Robustheit von Tragwerken sowie den Grundlagen für ihre Bemessung und den Nachweisen, die in prEN 1990:2021, Grundlagen der Tragwerksplanung, enthalten sind.
(2) prEN 1992 behandelt ausschließlich die Anforderungen an die Tragfähigkeit, die Gebrauchstauglichkeit, die Dauerhaftigkeit, Robustheit und den Feuerwiderstand von Tragwerken aus unbewehrtem Beton, Stahlbeton und Spannbeton. Andere Anforderungen, wie z. B. Wärmeschutz oder Schallschutz, werden nicht berücksichtigt.
(3) Spezifische Regeln oder Informationen werden in den folgenden Anhängen behandelt:
- zur Bewertung von bestehenden Tragwerken in Anhang I;
- zur Verstärkung von bestehenden Betontragwerken mit CFRP in Anhang J und Anhang C;
- zu eingebetteter FRP-Bewehrung in Anhang JA und Anhang C;
- zu Stahlfaserbeton in Anhang L und Anhang C;
- zu Bewehrung aus nichtrostendem Stahl in Anhang Q und Anhang C.
(4) Dieser Teil 1 1 behandelt folgende Themen nicht:
- Feuerwiderstand (siehe EN 1992 1 2);
- Befestigungen in Beton (siehe EN 1992 4);
- Auslegung von Bauwerken gegen Erdbeben (siehe EN 1998 [alle Teile]);
- besondere Gesichtspunkte bei speziellen Ingenieurbauwerken (z. B. Talsperren, Druckbehälter);
- Tragwerke aus Ein-Korn-Beton, Gasbeton, Porenbeton, Bauteilen aus haufwerksporigem Leichtbeton;
- Tragwerke mit tragenden Stahl-Querschnitten (siehe EN 1994 [alle Teile] für Verbundtragwerke aus Stahl und Beton);
- tragende Bauteile aus Beton mit einem kleinsten Wert des Größtkorns der Gesteinskörnung Dlower < 8 mm, sofern nicht anders in diesem Eurocode angegeben.
1.2 Annahmen
(1) Die folgenden Annahmen gelten:
- Tragwerke werden von ausreichend qualifizierten und erfahrenen Personen geplant.
- Baustoffe und Bauprodukte werden nach diesem Eurocode oder entsprechend den maßgebenden Baustoff- oder Produktspezifikationen verwendet.
- Tragwerke werden von ausreichend qualifizierten und erfahrenen Personen errichtet und die Bauausführung wird durch ausreichend qualifizierte und erfahrene Prüfer überwacht.
- Tragwerke werden angemessen instandgehalten.
- Tragwerke werden entsprechend den Bemessungsannahmen genutzt.
- Die Anforderungen an die Bauausführung und das Personal nach EN 13670 werden erfüllt.
Eurocode 2 - Calcul des structures en béton - Partie 1 1: Règles générales et règles pour les bâtiments, les ponts et les ouvrages de génie civil
1.1 Domaine d'application de la Partie 1 1 de l'EN 1992
(1) Le présent Eurocode donne la base générale pour le calcul des structures en béton non armé, armé et précontraint fabriqué à partir de granulats de poids normal, légers et lourds selon des règles propres à la construction des bâtiments, des ponts et des structures de génie civil, y compris des structures provisoires, dans des conditions de températures généralement comprises entre −40 °C et +100 °C. Il est conforme aux principes et exigences de sécurité, d’aptitude au service et de robustesse des ouvrages et aux bases de calcul et de vérification données dans l'EN 1990 : base de calcul des structures.
(2) L'EN 1992 ne traite que ce qui concerne les exigences de résistance mécanique, d'aptitude au service, de durabilité, de robustesse et de résistance au feu des structures en béton. Les autres exigences, telles que celles relatives à l’isolation thermique ou sonore, ne sont pas traitées.
(3) Les règles ou informations spécifiques sont traitées dans les annexes :
- dans l’Annexe I pour l’évaluation des structures existantes,
- dans les Annexes J et C pour le renforcement des structures existantes en béton avec des PRFC,
- dans les Annexes JA et C pour les armatures en PFR scellées,
- dans les Annexes L et C pour le béton de fibres métalliques,
- dans les Annexes Q et C pour les armatures en acier inoxydable.
(4) Cette Partie 1 1 ne couvre pas :
- la résistance au feu (voir l’EN 1992 1 2),
- les dispositifs de fixation dans le béton (voir l’EN 1992 4),
- la conception sismique (voir l’EN 1998 (toutes les parties)),
- les aspects particuliers des ouvrages spéciaux de génie civil (tels que les barrages, les enceintes sous pression),
- les structures fabriquées à partir de béton caverneux ou de béton aéré ou cellulaire, le béton à base de granulats légers présentant des composants à structure ouverte,
- les structures contenant des sections d’acier de structure (voir l’EN 1994 (toutes les parties) pour les structures composites en acier-béton),
- les parties structurales fabriquées avec un béton dont la plus petite valeur du plus gros granulat est Dlower < 8 mm, sauf indication contraire dans le code.
1.2 Hypothèses
(1) Les hypothèses suivantes s’appliquent :
- Les structures sont calculées par un personnel ayant les qualifications et l’expérience appropriées.
- Les matériaux de construction et les produits sont utilisés conformément aux spécifications du présent Eurocode ou aux spécifications du matériau ou produit concerné.
- Les structures sont construites par un personnel ayant les qualifications et l’expérience appropriées et la construction est inspectée par des inspecteurs ayant les qualifications et l’expérience appropriées.
- Les structures seront convenablement entretenues.
- Les structures seront utilisées conformément aux hypothèses de conception.
- Les exigences d'exécution et de mise en œuvre données dans l'EN 13670 sont satisfaites.
Evrokod 2: Projektiranje betonskih konstrukcij - 1-1. del: Splošna pravila - Pravila za stavbe, mostove in gradbene konstrukcije
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
oSIST prEN 1992-1-1:2021
01-december-2021
Evrokod 2: Projektiranje betonskih konstrukcij - 1-1. del: Splošna pravila - Pravila
za stavbe, mostove in gradbene konstrukcijeEurocode 2: Design of concrete structures - Part 1-1: General rules - Rules for buildings,
bridges and civil engineering structuresEurocode 2: Bemessung und Konstruktion von Stahlbeton- und Spannbetontragwerken -
Teil 1-1: Allgemeine Regeln - Regeln für Hochbauten, Brücken und Ingenieurbauwerke
Eurocode 2: Calcul des structures en béton - Partie 1-1: Règles générales - Règles pour
les bâtiments, les ponts et les ouvrages de génie civilTa slovenski standard je istoveten z: prEN 1992-1-1
ICS:
91.010.30 Tehnični vidiki Technical aspects
91.080.40 Betonske konstrukcije Concrete structures
oSIST prEN 1992-1-1:2021 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN 1992-1-1:2021
DRAFT
EUROPEAN STANDARD
prEN 1992-1-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
September 2021
ICS 91.010.30; 91.080.40 Will supersede EN 1992-1-1:2004
English Version
Eurocode 2: Design of concrete structures - Part 1-1:
General rules - Rules for buildings, bridges and civil
engineering structures
Eurocode 2: Calcul des structures en béton - Partie 1-1: Eurocode 2: Bemessung und Konstruktion von
Règles générales - Règles pour les bâtiments, les ponts Stahlbeton- und Spannbetontragwerken - Teil 1-1:
et les ouvrages de génie civil Allgemeine Regeln - Regeln für Hochbauten, Brücken
und IngenieurbauwerkeThis 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, Turkey 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
© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 1992-1-1:2021 E
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Contents Page
European foreword .......................................................................................................................................... 11
0 Introduction .................................................................................................................................................... 12
1 Scope ...................................................................................................................................................... 15
1.1 Scope of Part 1-1 of EN 1992 ......................................................................................................... 15
1.2 Assumptions ........................................................................................................................................ 15
2 Normative references ...................................................................................................................... 16
3 Terms, definitions and symbols ................................................................................................... 17
3.1 Terms and definitions...................................................................................................................... 17
3.2 Symbols and abbreviations............................................................................................................ 29
3.3 Symbols in Annex A........................................................................................................................... 49
3.4 Symbols in Annex I ............................................................................................................................ 50
3.5 Symbols in Annex J ............................................................................................................................ 51
3.6 Symbols in Annex JA ......................................................................................................................... 54
3.7 Symbols in Annex L ........................................................................................................................... 55
3.8 Abbreviations ..................................................................................................................................... 56
3.9 Units ....................................................................................................................................................... 57
3.10 Sign conventions ................................................................................................................................ 57
4 Basis of design .................................................................................................................................... 57
4.1 General rules ....................................................................................................................................... 57
4.1.1 Basic requirements ........................................................................................................................... 57
4.1.2 Structural reliability and quality management ...................................................................... 57
4.1.3 Design service life ............................................................................................................................. 57
4.2 Basic variables .................................................................................................................................... 58
4.2.1 Actions and time-dependent effects ........................................................................................... 58
4.2.2 Geometric data ................................................................................................................................... 59
4.3 Verification by the partial factor method ................................................................................. 60
4.3.1 Partial factor for shrinkage action .............................................................................................. 60
4.3.2 Partial factors for prestress action ............................................................................................. 60
4.3.3 Partial factors for materials .......................................................................................................... 60
4.4 Requirements for fastenings and post-installed reinforcing steel .................................. 61
5 Materials ............................................................................................................................................... 62
5.1 Concrete ................................................................................................................................................ 62
5.1.1 General .................................................................................................................................................. 62
5.1.2 Properties and related conditions .............................................................................................. 62
5.1.3 Strength ................................................................................................................................................. 62
5.1.4 Elastic deformation........................................................................................................................... 63
5.1.5 Creep and shrinkage ........................................................................................................................ 64
5.1.6 Design assumptions .......................................................................................................................... 66
5.2 Reinforcing steel ................................................................................................................................ 68
5.2.1 General .................................................................................................................................................. 68
5.2.2 Properties ............................................................................................................................................ 68
5.2.3 Welding of reinforcing bars ........................................................................................................... 69
5.2.4 Design assumptions .......................................................................................................................... 69
5.2.5 Reinforcement bar couplers .......................................................................................................... 70
5.2.6 Headed bars for reinforcement .................................................................................................... 70
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5.3 Prestressing steel .............................................................................................................................. 70
5.3.1 General .................................................................................................................................................. 70
5.3.2 Properties ............................................................................................................................................ 71
5.3.3 Design assumptions ......................................................................................................................... 72
5.4 Prestressing systems ....................................................................................................................... 72
5.4.1 General .................................................................................................................................................. 72
5.4.2 Anchorage zones ................................................................................................................................ 73
6 Durability ............................................................................................................................................. 74
6.1 General .................................................................................................................................................. 74
6.2 Requirements for durability ......................................................................................................... 74
6.3 Environmental exposure conditions .......................................................................................... 75
6.4 Exposure resistance classes .......................................................................................................... 79
6.5 Concrete cover .................................................................................................................................... 79
6.5.1 Nominal cover .................................................................................................................................... 79
6.5.2 Minimum cover .................................................................................................................................. 80
6.5.3 Allowance in design for deviation ............................................................................................... 84
7 Structural analysis ............................................................................................................................ 86
7.1 General .................................................................................................................................................. 86
7.2 Structural modelling for analysis ................................................................................................ 86
7.2.1 Geometric imperfections ................................................................................................................ 86
7.2.2 Idealisation of the structure .......................................................................................................... 90
7.2.3 Geometric data ................................................................................................................................... 90
7.3 Methods of analysis .......................................................................................................................... 92
7.3.1 Linear elastic analysis ..................................................................................................................... 92
7.3.2 Linear elastic analysis with redistribution .............................................................................. 93
7.3.3 Plastic analysis ................................................................................................................................... 95
7.3.4 Non-linear analysis ........................................................................................................................... 95
7.4 Second order structural analysis of members and systems with axial force .............. 96
7.4.1 General .................................................................................................................................................. 96
7.4.2 Creep ...................................................................................................................................................... 96
7.4.3 Methods of analysis .......................................................................................................................... 97
7.4.4 Compression member with biaxial bending ........................................................................... 98
7.5 Lateral instability of slender beams ........................................................................................... 99
7.6 Prestressed members and structures .................................................................................... 100
7.6.1 General ............................................................................................................................................... 100
7.6.2 Prestressing force .......................................................................................................................... 100
7.6.3 Immediate losses of prestress ................................................................................................... 101
7.6.4 Time dependent losses of prestress ........................................................................................ 103
7.6.5 Effects of prestressing at ultimate limit state ...................................................................... 104
8 Ultimate Limit States (ULS) ........................................................................................................ 105
8.1 Bending with or without axial force ........................................................................................ 105
8.1.1 General ............................................................................................................................................... 105
8.1.2 Stress distribution in the compression zones ..................................................................... 106
8.1.3 Bending in slabs .............................................................................................................................. 107
8.1.4 Confined concrete .......................................................................................................................... 107
8.2 Shear ................................................................................................................................................... 110
8.2.1 General verification procedure ................................................................................................. 110
8.2.2 Detailed verification for members not requiring design shear reinforcement ...... 113
8.2.3 Members requiring design shear reinforcement ............................................................... 116
8.2.4 In-plane shear and transverse bending ................................................................................. 122
8.2.5 Shear between web and flanges ................................................................................................ 122
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8.2.6 Shear at interfaces ......................................................................................................................... 124
8.3 Torsion and combined actions .................................................................................................. 128
8.3.1 General considerations for torsion .......................................................................................... 128
8.3.2 Internal forces due to torsion in compact or closed sections......................................... 128
8.3.3 Internal forces due to torsion in open sections ................................................................... 129
8.3.4 Torsional resistance of compact or closed sections .......................................................... 130
8.3.5 Design procedure for combination of actions ...................................................................... 131
8.3.6 Interaction formula ....................................................................................................................... 131
8.4 Punching ............................................................................................................................................ 131
8.4.1 General ............................................................................................................................................... 131
8.4.2 Shear-resisting effective depth, control perimeter and shear stress .......................... 132
8.4.3 Punching shear resistance of slabs without shear reinforcement ............................... 136
8.4.4 Punching shear resistance of slabs with shear reinforcement ...................................... 138
8.5 Design with strut-and-tie models and stress fields............................................................ 140
8.5.1 General ............................................................................................................................................... 140
8.5.2 Struts and compression fields ................................................................................................... 142
8.5.3 Ties ...................................................................................................................................................... 144
8.5.4 Nodes .................................................................................................................................................. 144
8.5.5 Spreading of struts ......................................................................................................................... 147
8.6 Partially loaded areas ................................................................................................................... 149
9 Serviceability Limit States (SLS) ............................................................................................... 152
9.1 General ............................................................................................................................................... 152
9.2 Crack control .................................................................................................................................... 152
9.2.1 General considerations ................................................................................................................ 152
9.2.2 Minimum reinforcement areas for crack control ............................................................... 157
9.2.3 Simplified control of cracking .................................................................................................... 159
9.2.4 Refined control of cracking ......................................................................................................... 160
9.3 Deflection control ........................................................................................................................... 164
9.3.1 General consideration .................................................................................................................. 164
9.3.2 Simplified deflection control by span/depth-ratio ............................................................ 164
9.3.3 Simplified calculation of long-term deflections for reinforced concrete building
structures .......................................................................................................................................... 166
9.3.4 General method for deflection calculations.......................................................................... 167
9.4 Vibrations .......................................................................................................................................... 168
10 Fatigue ................................................................................................................................................ 169
10.1 General ............................................................................................................................................... 169
10.2 Combination of actions ................................................................................................................. 169
10.3 Internal forces and stresses for fatigue verification ......................................................... 169
10.4 Simplified verification of reinforcing or prestressing steel............................................ 171
10.5 Simplified verification of concrete under compression or compression-tension .. 171
10.6 Simplified verification of concrete under shear ................................................................. 172
10.7 Simplified verification of shear at interfaces ....................................................................... 172
11 Detailing of reinforcement and post-tensioning tendons ............................................... 173
11.1 General ............................................................................................................................................... 173
11.2 Spacing of bars ................................................................................................................................. 173
11.3 Permissible mandrel diameters for bent bars ..................................................................... 173
11.4 Anchorage of reinforcing steel in tension and compression .......................................... 175
11.4.1 General ............................................................................................................................................... 175
11.4.2 Anchorage of straight bars .......................................................................................................... 176
11.4.3 Anchorage of bundles ................................................................................................................... 179
11.4.4 Anchorage of bars with bends and hooks .............................................................................. 179
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11.4.5 Anchorage of bars with welded transverse reinforcement ............................................ 180
11.4.6 Anchorage of U-bar loops ............................................................................................................ 181
11.4.7 Anchorage of headed bars ........................................................................................................... 181
11.4.8 Anchorage of bonded post-installed reinforcing steel ..................................................... 182
11.5 Laps of reinforcing steel in tension and compression and mechanical couplers ... 184
11.5.1 General ............................................................................................................................................... 184
11.5.2 All types of laps ............................................................................................................................... 184
11.5.3 Laps of bundles ............................................................................................................................... 187
11.5.4 Laps using U-bar loops ................................................................................................................. 188
11.5.5 Laps using headed bars ................................................................................................................ 190
11.5.6 Mechanical couplers ..................................................................................................................... 192
11.5.7 Full penetration butt weld and fillet weld splices .............................................................. 192
11.6 Post-tensioning tendons .............................................................................................................. 193
11.6.1 General ............................................................................................................................................... 193
11.6.2 Minimum spacing of ducts .......................................................................................................... 193
11.6.3 Minimum radius of curvature and straight length of tendons adjacent to the
anchorages ........................................................................................................................................ 193
11.6.4 Anchorages, couplers and deviators of post-tensioning tendons ................................. 194
11.7 Deviation forces due to curved tensile and compressive chords ................................. 195
12 Detailing of members and particular rules .......................................................................... 196
12.1 General ............................................................................................................................................... 196
12.2 Minimum reinforcement rules .................................................................................................. 196
12.3 Beams ................................................................................................................................................. 198
12.3.1 General ............................................................................................................................................... 198
12.3.2 Longitudinal reinforcement ....................................................................................................... 199
12.3.3 Shear and torsion reinforcement ............................................................................................. 200
12.3.4 Suspension reinforcement for indirect support ................................................................. 202
12.4 Slabs .................................................................................................................................................... 202
12.4.1 General ............................................................................................................................................... 202
12.4.2 Shear reinforcement ..................................................................................................................... 204
12.5 Slab-column connections and column bases ........................................................................ 204
12.5.1 Punching shear reinforcement.................................................................................................. 204
12.5.2 Integrity reinforcement against progressive collapse of flat slabs.............................. 207
12.6 Columns ............................................................................................................................................. 207
12.7 Walls and deep beams ......
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