Eurocode 3 - Design of steel structures - Part 1-5: Plated structural elements

1.1   Scope of EN 1993-1-5
(1) This document provides rules for structural design of stiffened and unstiffened nominally flat plates which are subject to in-plane forces.
(2) Non-uniform stress distributions due to shear lag, in-plane load introduction and plate buckling are covered. The effects of out-of-plane loading are outside the scope of this document.
NOTE 1   The rules in this part complement the rules for class 1, 2, 3 and 4 sections, see EN 1993-1-1.
NOTE 2   For the design of slender plates which are subject to repeated direct stress and/or shear and also fatigue due to out-of-plane bending of plate elements ("breathing"), see EN 1993-2 and EN 1993-6.
NOTE 3   For the effects of out-of-plane loading and for the combination of in-plane effects and out-of-plane loading effects, see EN 1993-2 and EN 1993-1-7.
(3) Single plate elements are considered as nominally flat where the curvature radius r in the direction perpendicular to the compression satisfies, as illustrated in Figure 1.1:
r≥b^2/t   (1.1)
where
b   is the panel width;
t   is the plate thickness.
Figure 1.1 - Definition of plate curvature
1.2   Assumptions
(1) Unless specifically stated, EN 1990, the EN 1991 series and EN 1993-1-1 apply.
(2) The design methods given in EN 1993-1-5 are applicable if
-   the execution quality is as specified in EN 1090-2 and
-   the construction materials and products used are as specified in the relevant parts of the EN 1993 series or in the relevant material product specifications.

Eurocode 3 - Bemessung und Konstruktion von Stahlbauten - Teil 1-5: Plattenförmige Bauteile

1.1   Anwendungsbereich von EN 1993-1-5
(1) Dieses Dokument enthält Regelungen für die Tragwerksplanung von nominell ebenen und in ihrer Ebene belasteten Blechen mit oder ohne Steifen.
(2) Ungleichmäßige Spannungsverteilungen infolge Schubverzerrungen, Lasteinleitung in der Ebene sowie Plattenbeulen sind abgedeckt. Die Wirkungen von Lasten quer zur Bauteilebene werden in diesem Dokument nicht behandelt.
ANMERKUNG 1   Die Regelungen in diesem Teil ergänzen die Regelungen für Querschnitte der Querschnittsklassen 1, 2, 3 und 4, siehe EN 1993-1-1.
ANMERKUNG 2   Regelungen zu schlanken Platten mit wechselnden Längsspannungen und/oder Schubspannungen, die zu Ermüdung durch wechselnde Biegung aus der Plattenebene ("Blechatmen") führen können, sind in EN 1993-2 und EN 1993-6 angegeben.
ANMERKUNG 3   Regelungen zur Wirkung von Lasten quer zur Plattenebene und zur Kombination von Lastwirkungen in der Ebene und aus der Ebene sind EN 1993-2 und EN 1993-1-7 zu entnehmen.
(3) Einzelne Blechfelder werden als nominell eben angesehen, wenn für den Krümmungsradius r in der Richtung senkrecht zur Druckrichtung entsprechend der Darstellung in Bild 1.1 gilt:
r≥b^2/t   (1.1)
Dabei ist
b   die Blechbreite;
t   die Blechdicke.
Bild 1.1 - Definition der Plattenkrümmung
Voraussetzungen
(1) Sofern nicht spezifisch angegeben, gelten EN 1990, die Normenreihe EN 1991 und EN 1993-1-1.
(2) Die in EN 1993 1 5 angegebenen Bemessungsverfahren sind anwendbar, wenn
die Qualität der Ausführung den Festlegungen nach EN 1090 2 entspricht; und
die verwendeten Baustoffe und Produkte den Festlegungen nach den maßgebenden Teilen der Normenreihe EN 1993 oder nach den maßgebenden Baustoffproduktspezifikationen entsprechen.

Eurocode 3 - Calcul des structures en acier - Partie 1-5 : Eléments structuraux constitués de plaques

1.1   Domaine d'application de l’EN 1993-1-5
(1) Le présent document fournit les règles de calcul structural pour des plaques nominalement plates, raidies et non raidies, qui sont soumises à des charges dans le plan.
(2) Les répartitions non uniformes de contrainte dues au traînage de cisaillement, à l'application de charges dans le plan et au voilement des plaques sont couvertes. Les effets des charges hors du plan ne sont pas traités.
NOTE 1   Les règles définies dans la présente partie complètent les règles applicables aux sections de classe 1, 2, 3 et 4, voir l'EN 1993-1-1.
NOTE 2   Pour le calcul des plaques élancées sur lesquelles s'exercent des contraintes normales et/ou de cisaillement répétées et qui sont soumises à la fatigue due à la flexion hors plan de leurs éléments constitutifs (respiration), voir l'EN 1993-2 et l'EN 1993-6.
NOTE 3   Pour les effets des charges exercées hors du plan et pour la combinaison des effets desdites charges et des charges exercées dans le plan, voir l'EN 1993-2 et l'EN 1993-1-7.
(3) Les plaques simples peuvent être considérées comme planes lorsque le rayon de courbure r, dans le sens perpendiculaire à la compression, satisfait (voir la Figure 1) :
r≥b^2/t   (1.1)

b   est la largeur du panneau ;
t   est l'épaisseur de la plaque.
Figure 1.1 - Définition de la courbure de la plaque
1.2   Hypothèses
(1) Sauf indication contraire, l'EN 1990, la série des EN 1991 et l'EN 1993-1-1 s'appliquent.
(2) Les méthodes de calcul données dans l'EN 1993-1-5 sont applicables si :
la qualité de l'exécution est telle que spécifiée dans l'EN 1090-2 ; et
les matériaux et produits de construction sont tels que spécifiés dans les parties pertinentes de la série des EN 1993 ou dans les spécifications de matériaux et de produits appropriées.

Evrokod 3 - Projektiranje jeklenih konstrukcij - 1-5. del: Elementi pločevinaste konstrukcije

General Information

Status
Published
Publication Date
19-Mar-2024
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Start Date
20-Mar-2024
Due Date
28-Nov-2021
Completion Date
20-Mar-2024

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SLOVENSKI STANDARD
01-julij-2024
Nadomešča:
SIST EN 1993-1-5:2007
SIST EN 1993-1-5:2007/A1:2017
SIST EN 1993-1-5:2007/A2:2019
SIST EN 1993-1-5:2007/AC:2009
Evrokod 3 - Projektiranje jeklenih konstrukcij - 1-5. del: Elementi pločevinaste
konstrukcije
Eurocode 3 - Design of steel structures - Part 1-5: Plated structural elements
Eurocode 3 - Bemessung und Konstruktion von Stahlbauten - Teil 1-5: Plattenförmige
Bauteile
Eurocode 3 - Calcul des structures en acier - Partie 1-5: Plaques planes
Ta slovenski standard je istoveten z: EN 1993-1-5:2024
ICS:
91.010.30 Tehnični vidiki Technical aspects
91.080.13 Jeklene konstrukcije Steel structures
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 1993-1-5
EUROPEAN STANDARD
NORME EUROPÉENNE
March 2024
EUROPÄISCHE NORM
ICS 91.010.30; 91.080.13 Supersedes EN 1993-1-5:2006
English Version
Eurocode 3 - Design of steel structures - Part 1-5: Plated
structural elements
Eurocode 3 - Calcul des structures en acier - Partie 1-5 : Eurocode 3 - Bemessung und Konstruktion von
Eléments structuraux constitués de plaques Stahlbauten - Teil 1-5: Plattenförmige Bauteile
This European Standard was approved by CEN on 1 January 2024.

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 CEN-CENELEC Management Centre 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 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.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

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 Ref. No. EN 1993-1-5:2024 E
worldwide for CEN national Members.

Contents Page
European foreword . 5
0 Introduction . 7
1 Scope . 10
2 Normative references . 11
3 Terms and definitions . 11
3.1 Terms . 11
3.2 Sign convention . 13
3.3 Symbols . 13
4 Basis of design . 14
4.1 General rules . 14
4.1.1 Basic requirement . 14
4.2 Partial factors . 14
4.3 Effective width models for global analysis . 15
4.4 Plate buckling effects on uniform members . 16
4.5 Reduced stress method . 17
4.6 Design assisted by finite element analysis . 17
4.7 Non-uniform members . 17
4.8 Members with corrugated webs . 17
5 Shear lag in member design . 17
5.1 General. 17
5.2 Elastic shear lag . 17
s
5.2.1 Effective width . 17
5.2.2 Stress distribution due to shear lag . 20
5.2.3 In-plane load effects . 20
5.3 Shear lag at the ultimate limit state . 21
5.3.1 Shear lag consideration . 21
5.3.2 Interaction between shear lag and plate buckling . 22
6 Plate buckling effects due to direct stresses at the ultimate limit state . 22
6.1 General. 22
6.2 Resistance to direct stresses . 23
6.3 Effective cross-section . 23
6.4 Plate elements without longitudinal stiffeners . 25
6.4.1 Plate buckling behaviour . 25
6.4.2 Column buckling behaviour . 29
6.5 Stiffened plate elements with longitudinal stiffeners . 30
6.5.1 General. 30
6.5.2 Plate buckling behaviour . 32
6.5.3 Column buckling behaviour . 33
6.6 Interpolation between plate and column buckling . 35
6.6.1 General. 35
6.6.2 Alternative methods for evaluating the weighting factor ξ . 37
6.6.3 Alternative simplified method for longitudinally stiffened panels in bending . 40
6.7 Verification . 42
7 Resistance to shear . 43
7.1 General . 43
7.2 Design resistance . 44
7.3 Contribution from the web . 45
7.4 Contribution from flanges . 48
7.5 Verification . 49
8 Resistance to patch loading . 49
8.1 General . 49
8.2 Design resistance . 50
8.3 Length of stiff bearing . 50
8.4 Reduction factor χ . 50
F
8.5 Effective loaded length . 51
8.6 Verification . 52
9 Interaction. 52
9.1 Interaction between shear force, bending moment and axial force . 52
9.2 Interaction between transverse force, bending moment and axial force . 53
9.3 Interaction between transverse force, bending moment and shear force . 53
10 Flange induced buckling . 54
11 Stiffeners and detailing . 55
11.1 General . 55
11.2 Direct stresses . 55
11.2.1 Minimum requirements for transverse stiffeners. 55
11.2.2 Minimum requirements for longitudinal stiffeners. 59
11.2.3 Welded plates. 59
11.2.4 Cut outs in stiffeners . 60
11.3 Shear . 62
11.3.1 Rigid end post . 62
11.3.2 Stiffeners acting as non-rigid end post . 62
11.3.3 Intermediate transverse stiffeners . 63
11.3.4 Longitudinal stiffeners . 63
11.3.5 Welds . 63
11.4 Transverse loads . 63
12 Reduced stress method . 64
12.1 General . 64
12.2 Verification of the buckling resistance . 64
12.3 Plate slenderness . 66
12.4 Reduction factors . 67
13 Plate girders with corrugated webs .
...

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