DESIGN OF STEEL STRUCTURES

DESIGN OF STEEL STRUCTURES free pdf ebook was written by CMM on March 11, 2010 consist of 16 page(s). The pdf file is provided by www.eccspublications.eu and available on pdfpedia since December 13, 2011.

t able of c ontents _____ ix chapter 4 elastic design of steel structures 271 4.1. introduction 271 4.2. simplified methods of analysis 273 4.2.1. introduction 273 4.2.2....

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DESIGN OF STEEL STRUCTURES pdf




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DESIGN OF STEEL STRUCTURES - page 1
D ESIGN OF S TEEL S TRUCTURES
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DESIGN OF STEEL STRUCTURES - page 2
ECCS E UROCODE D ESIGN M ANUALS ECCS E DITORIAL B OARD Luís Simões da Silva (ECCS) António Lamas (Portugal) Jean-Pierre Jaspart (Belgium) Reidar Bjorhovde (USA) Ulrike Kuhlmann (Germany) D ESIGN OF S TEEL S TRUCTURES Luís Simões da Silva, Rui Simões and Helena Gervásio F IRE D ESIGN OF S TEEL S TRUCTURES Jean-Marc Franssen and Paulo Vila Real I NFORMATION AND ORDERING DETAILS For price, availability, and ordering visit our website www.steelconstruct.com. For more information about books and journals visit www.ernst-und-sohn.de.
DESIGN OF STEEL STRUCTURES - page 3
D ESIGN OF S TEEL S TRUCTURES Eurocode 3: Design of steel structures Part 1-1 – General rules and rules for buildings Luís Simões da Silva Rui Simões Helena Gervásio
DESIGN OF STEEL STRUCTURES - page 4
Design of Steel Structures 1 st Edition, 2010 Published by: ECCS – European Convention for Constructional Steelwork publications@steelconstruct.com www.steelconstruct.com Sales: Wilhelm Ernst & Sohn Verlag für Architektur und technische Wissenschaften GmbH & Co. KG, Berlin All rights reserved. No parts of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, without the prior permission of the copyright owner. ECCS assumes no liability with respect to the use for any application of the material and information contained in this publication. Copyright © 2010 ECCS – European Convention for Constructional Steelwork ISBN (ECCS): 978-92-9147-098-3 ISBN (Ernst & Sohn): 978-3-433-02973-2 Printed in Multicomp Lda, Mem Martins, Portugal Photo cover credits: MARTIFER Construction
DESIGN OF STEEL STRUCTURES - page 5
T ABLE OF C ONTENTS T ABLE OF C ONTENTS FOREWORD PREFACE xiii xv Chapter 1 INTRODUCTION 1.1. General Observations 1.2. Codes of Practice and Normalization 1.2.1. Introduction 1.2.2. Eurocode 3 1.2.3. Other standards 1.3. Basis of Design 1.3.1. Basic concepts 1.3.2. Reliability management 1.3.3. Basic variables 1.3.3.1. Introduction 1.3.3.2. Actions and environmental influences 1.3.3.3. Material properties 1.3.3.4. Geometrical data 1.3.4. Ultimate limit states 1.3.5. Serviceability limit states 1.3.6. Durability 1.3.7. Sustainability 1.4. Materials 1 1 3 3 6 7 8 8 9 13 13 13 14 15 15 16 18 19 21 _____ v
DESIGN OF STEEL STRUCTURES - page 6
T ABLE OF C ONTENTS 1.4.1. Material specification 1.4.2. Mechanical properties 1.4.3. Toughness and through thickness properties 1.4.4. Fatigue properties 1.4.5. Corrosion resistance 1.5. Geometric Characteristics and Tolerances 21 22 25 27 27 28 Chapter 2 STRUCTURAL ANALYSIS 2.1. Introduction 2.2. Structural Modelling 2.2.1. Introduction 2.2.2. Choice of member axis 2.2.3. Influence of eccentricities and supports 2.2.4. Non-prismatic members and members with curved axis 2.2.5. Influence of joints _____ 33 33 34 34 36 38 39 44 51 52 75 75 77 77 80 86 87 93 108 vi 2.2.6. Combining beam elements together with two and three dimensional elements 2.2.7. Worked examples 2.3. Global Analysis of Steel Structures 2.3.1. Introduction 2.3.2. Structural stability of frames 2.3.2.1. Introduction 2.3.2.2. Elastic critical load 2.3.2.3. 2 nd order analysis 2.3.3. Imperfections 2.3.4. Worked example 2.4. Classification of Cross Sections
DESIGN OF STEEL STRUCTURES - page 7
T ABLE OF C ONTENTS Chapter 3 DESIGN OF MEMBERS 3.1. Introduction 3.1.1. General 3.1.2. Resistance of cross sections 3.1.2.1. General criteria 3.1.2.2. Section properties 3.1.3. Buckling resistance of members 3.2. Tension 3.2.1. Behaviour in tension 3.2.2. Design for tensile force 3.2.3. Worked examples 3.3. Laterally Restrained Beams 3.3.1. Introduction 3.3.2. Design for bending 3.3.2.1. Elastic and plastic bending moment resistance 3.3.2.2. Uniaxial bending 3.3.2.3. Bi-axial bending 3.3.2.4. Net area in bending 3.3.3. Design for shear 3.3.4. Design for combined shear and bending 3.3.5. Worked examples 3.4. Torsion 3.4.1. Theoretical background 3.4.1.1. Introduction 3.4.1.2. Uniform torsion 3.4.1.3. Non-uniform torsion 115 115 115 116 116 117 121 121 121 123 126 134 134 135 135 137 138 139 139 140 142 154 154 154 156 157 _____ vii
DESIGN OF STEEL STRUCTURES - page 8
T ABLE OF C ONTENTS 3.4.1.4. Cross section resistance in torsion 3.4.2. Design for torsion 3.4.3. Worked examples 3.5. Compression 3.5.1. Theoretical background 3.5.1.1. Introduction 3.5.1.2. Elastic critical load 3.5.1.3. Effect of imperfections and plasticity 3.5.2. Design for compression 3.5.3. Worked examples 3.6. Laterally Unrestrained Beams 3.6.1. Introduction 3.6.2. Lateral-torsional buckling 3.6.2.1. Introduction 3.6.2.2. Elastic critical moment 3.6.2.3. Effect of imperfections and plasticity _____ 161 164 166 172 172 172 172 177 183 188 197 197 197 197 198 208 210 214 223 223 224 224 227 230 230 233 242 viii 3.6.3. Lateral-torsional buckling resistance 3.6.4. Worked examples 3.7. Beam-Columns 3.7.1. Introduction 3.7.2. Cross section resistance 3.7.2.1. Theoretical background 3.7.2.2. Design resistance 3.7.3. Buckling resistance 3.7.3.1. Theoretical background 3.7.3.2. Design resistance 3.7.4. Worked examples
DESIGN OF STEEL STRUCTURES - page 9
T ABLE OF C ONTENTS Chapter 4 ELASTIC DESIGN OF STEEL STRUCTURES 4.1. Introduction 4.2. Simplified Methods of Analysis 4.2.1. Introduction 4.2.2. Amplified sway-moment method 4.2.3. Sway-mode buckling length method 4.2.4. Worked example 4.3. Member Stability of Non-prismatic Members and Components 4.3.1. Introduction 4.3.2. Non-prismatic members 4.3.3. Members with intermediate restraints 4.3.4. General method 4.3.5. Worked example 4.4. Design Example 1: Elastic Design of Braced Steel-Framed Building 4.4.1. Introduction 4.4.2. Description of the structure 4.4.3. General safety criteria, actions and combinations of actions 4.4.3.1. General safety criteria 4.4.3.2. Permanent actions 4.4.3.3. Imposed loads 4.4.3.4. Wind actions 4.4.3.5. Summary of basic actions 4.4.3.6. Frame imperfections 4.4.3.7. Load combinations 4.4.3.8. Load arrangement 271 271 273 273 275 277 278 288 288 288 293 299 302 317 317 318 321 321 321 321 322 329 329 332 334 _____ ix
DESIGN OF STEEL STRUCTURES - page 10
T ABLE OF C ONTENTS 4.4.4. Structural analysis 4.4.4.1. Structural model 4.4.4.2. Linear elastic analysis 4.4.4.3. Susceptibility to 2 nd order effects: elastic critical loads 4.4.4.4. 2 nd order elastic analysis 4.4.5. Design checks 4.4.5.1. General considerations 4.4.5.2. Cross section resistance 4.4.5.3. Buckling resistance of beams 4.4.5.4. Buckling resistance of columns and beam-columns 335 335 336 336 338 339 339 341 342 342 Chapter 5 PLASTIC DESIGN OF STEEL STRUCTURES 5.1. General Rules for Plastic Design 5.1.1. Introduction _____ 343 343 343 344 349 352 352 352 364 369 369 369 372 373 375 5.1.2. Plastic limit analysis: method of mechanisms 5.1.3. Code requirements for plastic analysis 5.2. Methods of Analysis 5.2.1. Introduction 5.2.2. Approximate methods for pre-design 5.2.3. Computational analysis 5.2.4. 2 nd order effects 5.2.4.1. Introduction 5.2.4.2. Elastic critical load 5.2.4.3. 2 nd order computational analysis 5.2.4.4. Simplified methods for analysis 5.2.5. Worked example x
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