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BS EN 1993-1-5:2024

BS EN 1993-1-5:2024

$215.11

Eurocode 3. Design of steel structures – Plated structural elements

Published By Publication Date Number of Pages
BSI 2024 88
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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.

PDF Catalog

PDF Pages PDF Title
2 undefined
14 1 Scope
15 2 Normative references
3 Terms and definitions
3.1 Terms
17 3.2 Sign convention
3.3 Symbols
18 4 Basis of design
4.1 General rules
4.1.1 Basic requirement
4.2 Partial factors
19 4.3 Effective width models for global analysis
20 4.4 Plate buckling effects on uniform members
21 4.5 Reduced stress method
4.6 Design assisted by finite element analysis
4.7 Non-uniform members
4.8 Members with corrugated webs
5 Shear lag in member design
5.1 General
5.2 Elastic shear lag
5.2.1 Effectives width
24 5.2.2 Stress distribution due to shear lag
5.2.3 In-plane load effects
25 5.3 Shear lag at the ultimate limit state
5.3.1 Shear lag consideration
26 5.3.2 Interaction between shear lag and plate buckling
6 Plate buckling effects due to direct stresses at the ultimate limit state
6.1 General
27 6.2 Resistance to direct stresses
6.3 Effective cross-section
29 6.4 Plate elements without longitudinal stiffeners
6.4.1 Plate buckling behaviour
33 6.4.2 Column buckling behaviour
34 6.5 Stiffened plate elements with longitudinal stiffeners
6.5.1 General
36 6.5.2 Plate buckling behaviour
37 6.5.3 Column buckling behaviour
39 6.6 Interpolation between plate and column buckling
6.6.1 General
41 6.6.2 Alternative methods for evaluating the weighting factor ξ
44 6.6.3 Alternative simplified method for longitudinally stiffened panels in bending
46 6.7 Verification
47 7 Resistance to shear
7.1 General
48 7.2 Design resistance
49 7.3 Contribution from the web
52 7.4 Contribution from flanges
53 7.5 Verification
8 Resistance to patch loading
8.1 General
54 8.2 Design resistance
8.3 Length of stiff bearing
8.4 Reduction factor χF
55 8.5 Effective loaded length
56 8.6 Verification
9 Interaction
9.1 Interaction between shear force, bending moment and axial force
57 9.2 Interaction between transverse force, bending moment and axial force
9.3 Interaction between transverse force, bending moment and shear force
58 10 Flange induced buckling
59 11 Stiffeners and detailing
11.1 General
11.2 Direct stresses
11.2.1 Minimum requirements for transverse stiffeners
63 11.2.2 Minimum requirements for longitudinal stiffeners
11.2.3 Welded plates
64 11.2.4 Cut outs in stiffeners
66 11.3 Shear
11.3.1 Rigid end post
11.3.2 Stiffeners acting as non-rigid end post
67 11.3.3 Intermediate transverse stiffeners
11.3.4 Longitudinal stiffeners
11.3.5 Welds
11.4 Transverse loads
68 12 Reduced stress method
12.1 General
12.2 Verification of the buckling resistance
70 12.3 Plate slenderness
71 12.4 Reduction factors
75 13 Plate girders with corrugated webs
13.1 General
13.2 Ultimate limit state
13.2.1 Moment of resistance
77 13.2.2 Shear resistance
78 13.2.3 Resistance to transverse forces
80 13.2.4 Interaction between shear force and bending moment
13.2.5 Interaction between transverse force, bending moment and shear force
13.2.6 Requirements for end stiffeners
81 Annex A (informative)Calculation of critical stresses for stiffened plates
A.1 Use of this informative annex
A.2 Scope and field of application
A.3 Equivalent orthotropic plate for plates with at least three longitudinal stiffeners
82 A.4 Equivalent orthotropic plate for plates with one or two longitudinal stiffeners
83 A.5 Shear buckling coefficients
A.6 Buckling coefficient for patch loading
85 Annex B (informative)Non-uniform members
B.1 Use of this informative annex
B.2 Scope and field of application
B.3 General
B.4 Interaction of plate buckling and lateral torsional buckling

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