The main aim of this book is to provide practical advice to designers of plated structures for correct and efficient application of EN 1993-1-5 design rules. In chapter 1 the purpose, the scope and the structure of the book is explained. In chapter 2 a rather detailed and commented overview of EN 1993-1-5 design rules is given following the structure of the standard. Shear lag effect as well as plate buckling problems due to direct stresses, shear forces, transverse forces and interactions of these effects are covered. This chapter also includes a reduced stress method and a finite element analysis approach to plate buckling problems. A large number of design examples illustrate the proper application of individual design rules. Chapter 3 and 4 bring two complete design examples on a crane runway and a box-girder bridge.

Darko Beg is professor of steel structures and chair of Metal Structures at the University of Ljubljana, Faculty of Civil and Geodetic Engineering. He was a member of the project team that drafted Eurocode 3, Part 1-5: Plated Structural Moments. He is a member of CEN/TC250/SC3 and a member of three ECCS technical committees: TC8 Stability, TC10 Connections and TC13 Seismic Design. He also chairs the Slovenian National Technical Committee on Structuros. Ulrike Kuhlmann is professor of steel, timber and composites structures at the University of Stuttgart. Germany and Head of the Institute of Structural Design She chairs CEN/T C2S0/SC3 Steel Structures and Technical Working Group 8.3 Plates of ECCS. She was a member of the project team for the conversion of ENV 1993-1-1 to EN 1993 and has since been deeply involved in code drafting. Laurence Davaine is a bridge engineer at the Department of Bridge Engineering of the French Railway Administration (SNCP) in Paris, France. Formerly she worked as a research engineer at SETRA (technical centre for bridge engineering) for the French Ministry of Transportation. She is a member of the technical Working Group 8.3 Plates of ECCS and involved in CEN/TC250/SC3 Steel Structures for EN 1993-2 (bridges). Benjamin Braun is a scientific researcher at the Department of Structural Engineering of the Federal Waterways Engineering and Research Institute (BAW) in Karlsruhe, Germany. Formerly he worked at the Institute of Structural Design of the University of Stuttgart where he was in charge of co-writing the German National Annex to Eurocode 3 Part 1-5. He is a member of Technical Working Group 8.3 Plates of ECCS.

Foreword	p. vii
Preface	p. ix
Symbols	p. xi
Introduction	p. 1
Plate buckling in steel structures	p. 1
Purpose of this book	p. 2
Structure of this book	p. 3
Overview Of Design Rules	p. 5
Introduction	p. 5
Basis of design and modelling	p. 5
General	p. 5
Effective width models for global analysis	p. 6
Uniform and non uniform members	p. 7
Reduced stress method	p. 8
Shear lag in member design	p. 8
Phenomenon	p. 8
Shear lag in global analysis (calculation of internal forces and moments)	p. 10
Elastic shear lag in section analysis (calculation of stresses at SLS and fatigue ULS)	p. 11
Elastoplastic shear lag in section analysis (calculation of stresses at ULS)	p. 14
Interaction between shear lag and plate buckling at ULS	p. 15
Design examples	p. 16
Plate buckling effects due to direct stresses (including annexes A and E where applicable)	p. 22
Introduction	p. 22
Effective width method	p. 25
General requirements	p. 25
Principles of effective width calculation	p. 27
Hybrid girders	p. 30
Plate-like and column-like buckling	p. 31
Plate-like buckling	p. 32
Unstiffened plates	p. 32
Longitudinally stiffened plates	p. 36
Column-like buckling	p. 42
Unstiffened plates	p. 42
Longitudinally stiffened plates	p. 43
Interpolation between plate-like and column-like buckling	p. 45
Verification of the cross section resistance in ultimate limit states	p. 48
Verification of plated structural elements in the serviceability limit states	p. 50
Design examples	p. 51
Resistance to shear (including annex A where applicable)	p. 83
Collapse behaviour	p. 83
Design according to section 5, EN 1993-1-5	p. 84
Design example	p. 92
Resistance to transverse loading	p. 93
Collapse behaviour	p. 93
Design according to section 6, EN 1993-1-5	p. 94
Design example	p. 102
Interaction	p. 109
Interaction between bending moment and shear force in a web panel	p. 109
Interaction between axial force, bending moment and shear force in a web panel	p. 112
Interaction between axial force, bending moment and shear force in a flange panel	p. 112
Interaction between axial force, bending moment and transverse force	p. 113
Interaction between shear force and transverse force in a web panel	p. 115
Design examples	p. 117
Flange induced buckling	p. 118
Stiffeners and detailing	p. 121
Introduction	p. 121
Transverse stiffeners	p. 124
Direct stresses	p. 124
Shear	p. 127
Simultaneous action of direct stresses and shear	p. 131
Introduction of reaction forces and other large transverse forces	p. 134
Longitudinal stiffeners	p. 135
Direct stresses	p. 135
Shear	p. 137
Torsional buckling of stiffeners	p. 137
Structural detailing related to plate buckling	p. 140
Transverse welds in the plate	p. 140
Cut-outs in stiffeners	p. 141
Welds	p. 142
Design examples	p. 143
Reduced stress method (including Annexes A and B where applicable)	p. 160
General	p. 160
Choice of reduction factors	p. 164
FEM	p. 166
Introduction	p. 166
Modelling	p. 168
Definition of initial imperfections in the FE model	p. 168
Definition of material behaviour in the FE model	p. 172
Design examples	p. 173
Crane Runway Beam Example	p. 181
Description of the crane	p. 181
Description of the crane runway beam	p. 182
Geometry	p. 182
Material properties and material partial factors	p. 184
Cross section classification	p. 184
Actions and load partial factors	p. 186
General	p. 186
Crane actions	p. 187
Internal forces and stresses	p. 189
General	p. 189
Transverse forces and stresses	p. 190
Maximum bending moments and stresses	p. 192
Maximum shear forces and stresses	p. 193
Verifications in general	p. 194
Bucklling verifications according to sections 4 to 7, EN 1993-1-5	p. 194
Resistance to shear forces	p. 195
Resistance to transverse forces	p. 197
Interaction checks	p. 199
Buckling verifications according to section 10, EN 1993-1-5	p. 200
Flange induced buckling verification	p. 204
Stiffener verifications	p. 205
Bearing stiffeners	p. 205
Box-Girder Bridge Example	p. 209
Description of the bridge	p. 209
Longitudinal elevation	p. 209
Cross section of the composite deck	p. 209
Material properties and partial factors	p. 210
Structural steel	p. 210
Reinforced concrete	p. 211
Partial factors	p. 211
Structural steel distribution	p. 211
Internal forces and moments, Stresses	p. 214
Actions and load partial factors	p. 214
Transient design situation (launching phase)	p. 215
Permanent design situation	p. 215
Web buckling verification for the launching phase	p. 217
Patch loading verification	p. 218
Resistance load for a single wheel (ss = 0)	p. 220
Resistance load for a patch length ss = 1500 mm	p. 220
Patch loading verification	p. 221
Interaction between patch loading and bending moment	p. 221
Effective cross section of the stiffened bottom flange at internal support PI (uniform compression)	p. 222
First step: shear lag effect according to EN1993-lr5, 3.2 and 3.3	p. 222
Second step: Critical plate buckling stress according to EN1993-l-5, Annex A	p. 223
Third step: Effective cross section	p. 225
Step A: Local buckling of sub-panels	p. 225
Step B: Global buckling of the whole stiffened bottom flange	p. 227
Effective cross section of the stiffened web at internal support PI (bending)	p. 230
Local buckling of sub-panels	p. 232
Global buckling of the whole stiffened web in bending	p. 234
Column like behaviour	p. 234
Plate like behaviour	p. 236
Interpolation between plate like and column like behaviour	p. 237
Torsional buckling of the longitudinal web stiffener	p. 238
Checking of the box-girder section under bending at support PI	p. 239
Shear resistance of the stiffened web panel closest to the internal support PI	p. 240
Interaction between bending and shear at support PI	p. 246
Intermediate transverse stiffener design	p. 247
Transverse web stiffeners	p. 247
Axial forces from the tension field action	p. 247
Transverse deviation forces from adjacen compressed panels	p. 247
Verification of the transverse stiffener	p. 248
Lower flange transverse stiffeners	p. 250
Cross section class check	p. 251
Strength and stiffness check of the stiffener	p. 252
Shear resistance of the stiffener web	p. 253
Buckling verifications at internal support PI according to section 10, EN 1993-1-5	p. 254
General	p. 254
Stiffened bottom flange	p. 254
General	p. 254
Determination of ¿_loc to account for local buckling	p. 256
Determination of ¿_c to account for global buckling	p. 257
Stiffened bottom flange	p. 260
General	p. 260
Determination of ¿_loc to account for local buckling	p. 261
Determination of ¿_c to account for global buckling	p. 263
References	p. 267
Table of Contents provided by Ingram. All Rights Reserved.

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Design of Plated Structures Eurocode 3: Design of Steel Structures, Part 1-5: Design of Plated Structures

9783433029800

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