Title prEN 1994-1-1_wm .pdf ✅

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM DRAFT prEN 1994-1-1 March 2024 ICS 91.010.30; 91.080.13; 91.080.40 Will supersede EN 1994-1-1:2004 English Version Eurocode 4 - Design of composite steel and concrete structures - Part 1-1: General rules and rules for buildings Eurocode 4: Calcul des structures mixtes acier-béton - Partie 1-1: Règles générales et règles pour les bâtiments Eurocode 4 - Bemessung und Konstruktion von Verbundtragwerken aus Stahl und Beton - Teil 1-1: Allgemeine Bemessungsregeln und Regeln für den Hochbau 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 C O M I T É E U R O P É E N D E N O R M A L I S A T I O N E U R O P Ä I S C H E S K O M I T E E F Ü R N O R M U N G CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels © 2024 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. prEN 1994-1-1:2024 E ΣΧΕΔΙΟ – ΔΗΜΟΣΙΑ ΚΡΙΣΗ
prEN 1994-1-1:2024 (E) 2 Contents European foreword ............................................................................................................................................ 9 0 Introduction ....................................................................................................................................................10 1 Scope........................................................................................................................................................12 1.1 Scope of EN 1994-1-1 .........................................................................................................................12 1.2 Assumptions .........................................................................................................................................12 2 Normative references........................................................................................................................12 3 Terms, definitions and symbols ....................................................................................................12 3.1 Terms and definitions.......................................................................................................................12 3.2 Symbols ..................................................................................................................................................17 3.2.1 Latin upper case letters ....................................................................................................................17 3.2.2 Latin lower case letters.....................................................................................................................23 3.2.3 Greek upper case letters ..................................................................................................................28 3.2.4 Greek lower case letters...................................................................................................................29 3.3 Additional symbols used in Annex A............................................................................................32 3.3.1 Latin upper case letters ....................................................................................................................32 3.3.2 Latin lower case letters.....................................................................................................................32 3.3.3 Greek lower case letters...................................................................................................................33 3.4 Additional symbols used in Annex B............................................................................................33 3.4.1 Latin upper case letters ....................................................................................................................33 3.4.2 Latin lower case letters.....................................................................................................................33 3.4.3 Greek lower case letters...................................................................................................................33 3.5 Additional symbols used in Annexes D and E...........................................................................34 3.5.1 Latin upper case letters ....................................................................................................................34 3.5.2 Latin lower case letters.....................................................................................................................36 3.5.3 Greek lower case letters...................................................................................................................37 3.6 Additional symbols used in Annex F............................................................................................37 3.6.1 Latin upper case letters ....................................................................................................................37 3.6.2 Latin lower case letters.....................................................................................................................37 3.6.3 Greek upper case letters ..................................................................................................................38 3.6.4 Greek lower case letters...................................................................................................................38 3.7 Additional symbols used in Annex G............................................................................................38 3.7.1 Latin upper case letters ....................................................................................................................38 3.7.2 Latin lower case letters.....................................................................................................................38 3.8 Additional symbols used in Annex H ...........................................................................................39 3.8.1 Latin upper case letters ....................................................................................................................39 3.8.2 Latin lower case letters.....................................................................................................................39 3.8.3 Greek lower case letters...................................................................................................................39 3.9 Additional symbols used in Annex I.............................................................................................40 3.10 Additional symbols used in Annex J.............................................................................................40 3.10.1 Latin upper case letters ....................................................................................................................40 3.10.2 Latin lower case letters.....................................................................................................................40 3.10.3 Greek lower case letters...................................................................................................................41 4 Basis of design......................................................................................................................................41 4.1 General Rules .......................................................................................................................................41 4.1.1 Requirements.......................................................................................................................................41 4.1.2 Robustness ............................................................................................................................................41 4.1.3 Reliability ..............................................................................................................................................41 4.2 Principles of limit states design.....................................................................................................41 ΣΧΕΔΙΟ – ΔΗΜΟΣΙΑ ΚΡΙΣΗ
prEN 1994-1-1:2024 (E) 3 4.3 Basic variables..................................................................................................................................... 42 4.3.1 Actions and environmental influences.......................................................................................42 4.3.2 Material and product properties ..................................................................................................42 4.3.3 Classification of actions....................................................................................................................42 4.4 Verification by the partial factor method..................................................................................42 4.4.1 Design values........................................................................................................................................ 42 4.4.2 Design resistances..............................................................................................................................43 4.4.3 Combination of actions.....................................................................................................................43 4.4.4 Verification of static equilibrium..................................................................................................43 5 Materials ................................................................................................................................................ 43 5.1 Concrete ................................................................................................................................................. 43 5.2 Reinforcing steel................................................................................................................................. 44 5.3 Structural steel.................................................................................................................................... 45 5.4 Connecting devices.............................................................................................................................45 5.4.1 Fasteners ............................................................................................................................................... 45 5.4.2 Shear connectors ................................................................................................................................ 45 5.5 Profiled steel sheeting for composite slabs in buildings......................................................47 6 Durability .............................................................................................................................................. 48 6.1 General ................................................................................................................................................... 48 6.2 Profiled steel sheeting for composite slabs in buildings......................................................48 7 Structural analysis .............................................................................................................................48 7.1 Structural modelling for analysis ................................................................................................. 48 7.1.1 Structural modelling and basic assumptions ...........................................................................48 7.1.2 Joint modelling .................................................................................................................................... 48 7.1.3 Ground-structure interaction ........................................................................................................49 7.2 Structural stability .............................................................................................................................49 7.2.1 Effects of deformed geometry of the structure........................................................................49 7.2.2 Methods of analysis for buildings................................................................................................. 49 7.3 Imperfections....................................................................................................................................... 50 7.3.1 Basis......................................................................................................................................................... 50 7.3.2 Imperfections in buildings ..............................................................................................................50 7.4 Calculation of action effects ............................................................................................................51 7.4.1 Methods of global analysis ..............................................................................................................51 7.4.2 Linear elastic analysis.......................................................................................................................53 7.4.3 Non-linear global analysis...............................................................................................................56 7.4.4 Linear elastic analysis with limited redistribution for buildings.....................................56 7.4.5 Rigid-plastic global analysis for buildings.................................................................................58 7.5 Classification of cross-sections......................................................................................................59 7.5.1 General ................................................................................................................................................... 59 7.5.2 Classification of composite sections without concrete encasement................................60 7.5.3 Classification of composite sections for buildings with concrete encasement............60 8 Ultimate limit states ..........................................................................................................................61 8.1 Beams...................................................................................................................................................... 61 8.1.1 General ................................................................................................................................................... 61 8.1.2 Effective width for verification of cross-sections....................................................................63 8.2 Resistances of cross-sections of beams ......................................................................................63 8.2.1 Bending resistance.............................................................................................................................63 8.2.2 Resistance to vertical shear............................................................................................................72 8.3 Resistance of cross-sections of beams with partial encasement for buildings............73 8.3.1 Scope ....................................................................................................................................................... 73 8.3.2 Bending resistance.............................................................................................................................74 ΣΧΕΔΙΟ – ΔΗΜΟΣΙΑ ΚΡΙΣΗ