GUIDE TO STABILITY DESIGN CRITERIA FOR METAL STRUCTURES THIRD EDITIONPDF电子书下载

Chapter One Introduction 1

1.1 The Metal Column—Past and Present 1

1.2 Scope and Summary of the Guide 2

1.3 Mechanical Properties of Structural Metals 4

Contents 11

Notation 11

1.4 Definitions 11

1.5 Post-Buckling Behavior 15

2.2 Concepts of Structural Safety 18

2.1 Introduction 18

Chapter Two Structural Safety 18

2.3 Load and Resistance Factor Design(Limit StatesDesign) 20

2.4 The Safety of Columns 22

Abbreviations 23

2.5 Safety in Column-Support Details 24

Chapter Three Centrally Loaded Columns 26

3.1 Introduction 26

3.2 Critical Load-Theory 27

3.3 Effects of Geometric Imperfections 38

3.4 Strength of Aluminum-Alloy Columns 42

3.5 Strength of Steel Columns 50

3.6 Design Considerations for Steel Columns 64

3.7 Effective Length of Framed Columns 73

3.8 Columns of Variable Cross Section 77

3.9 Lateral-Bracing Requirements 77

Chapter Four Local Buckling of Plates 81

4.1 Introduction 81

4.2 Critical Stresses for Plates Under Uniform Edge Com-pression 83

4.3 k-Factors for Elements of Rolled Structural Shapes and Box Sections 87

4.4 Plate-Thickness Requirements as Determined by Critical Stress 89

4.5 Effective Width-Thickness Ratios for Flat Plates in Axial Compression,Based on Post-Buckling Strength 93

4.6 Plates Under Other Edge-Loading Conditions 102

5.1 Introduction 113

Chapter Five Dynamic Load Effects 113

5.2 Parametric Resonance 115

5.3 Simply Supported Uniform Column 116

5.4 Other Results 118

Chapter Six Laterally Unsupported Beams 121

6.1 Introduction 121

6.2 Rectangular and Box-Girder Sections 126

6.3 Doubly Symmetric I-Shaped Beams and Girders—Introduction 130

6.4 Method A:The Basic Procedure for Doubly Symmetric I-Shaped Beams and Plate Girders 131

6.5 Method B:The Single-Formula Simplified Procedure for Doubly Symmetric I-Shaped Beams and Plate Girders 137

6.6 Method C:The Double-Formula Simplified Procedure for Doubly Symmetric I-Shaped Beams and Plate Girders 139

6.8 Girders Symmetrical about the y-y Axis but Unsymmetri-cal about the x-x Axis 141

6.7 Summary with Respect to Design Formulas for Doubly Symmetric I-Shaped Beams and Plate Girders 141

6.9 Doubly Symmetric Girders with Variable Flange Area 145

6.10 Continuous Beams 145

6.11 Channels and Special Shapes 146

6.12 Types of Lateral Support 148

6.13 Effect of Concrete Encasement 149

Chapter Seven Plate Girders 152

7.1 Introduction 152

7.2 Web Buckling as a Basisfor Design 155

7.3 Shear Strength of Plate Girders 157

7.4 Girders with No Intermediate Stiffeners 166

7.5 Bending Strength of Plate Girders 167

7.6 Combined Bending and Shear 171

7.7 Plate Girders with Longitudinal Stiffeners 172

7.8 End Panels 176

7.9 Design of Stiffeners 176

7.10 Panels Under Edge Loading 179

7.11 Fatigue 182

7.12 Research Needs 182

Chapter Eight Beam-Columns 189

8.1 Introduction 189

8.2 Beam-Column Design Based on Load at Initial Yield 192

8.3 Beam-Column Strength in Bending Without Lateral Buckling 196

8.4 Strength of Laterally Unsupported Beam-Columns 201

8.5 Beam-Columns Having Unequal End Moments 202

8.6 Beam-Columns with Lateral Loading 204

8.7 Beam-Columns in Biaxial Bending 205

8.8 Evaluation of Interaction Design Formulae 216

8.9 Restrained Beam-Columns 218

8.10 Design Trends and Research Needs 219

Chapter Nine Thin-Walled Metal Construction 227

9.1 Introduction 227

9.2 Flexural Members 228

9.3 Compression Members 242

9.4 Diaphragm Action of Thin-Walled Panels 253

9.5 Bracing Requirements 254

Chapter Ten Circular Tubes and Shells 261

10.1 Introduction 261

10.2 Production Practice 261

10.3 Material Properties 263

10.4 General Buckling Behavior 264

10.5 Circular Tubes and Shells Subjected to Axial Compression 266

10.6 Cylindrical Shells Subjected to Bending 284

10.7 Cylindrical Shells Subjected to Torsion 286

10.8 Cylindrical Shells Subjected to Transverse Shear 288

10.9 Cylindrical Shells Subjected to Uniform Pressure 289

10.10 Cylinders Subjected to Combined Loadings 310

10.11 Special Topics 318

Chapter Eleven Tapered Structural Members 330

11.1 Introduction 330

11.2 Frame Analysis 331

11.3 Stress Analysis 337

11.4 Stability of Tapered Members 341

11.5 Development of Axial Compression Formulas 343

11.6 Development of Bending Formulas 348

11.7 Interaction:Axial Compression and Bending 354

11.8 Summary 356

Chapter Twelve Columns with Lacing,Battens,or Perforated Cover Plates 359

12.1 Introduction 359

12.2 Effects of Shear Distortion and Axial Force 360

12.3 Laced Structural Members 362

12.4 Columns with Battens 367

12.5 Tie Plates and Spaced Problems 372

12.6 Columns with Perforated Plates 376

12.7 Design of Lattice Towers and Masts 378

13.1 Introduction 381

Chapter Thirteen Mill-Building Columns 381

13.2 Effective Length of Stepped Columns 383

13.3 Design Procedure for Stepped Columns 384

13.4 Design Trends and Research Needs 392

Chapter Fourteen Members with Elastic Lateral Restraints 394

14.1 Introduction 394

14.2 Buckling of the Compression Chord 396

14.3 Effect of Secondary Factors on Buckling Load 402

14.4 Top-Chord Stresses Due to Bending of Floorbeams and to Initial Chord Eccentricities 403

14.5 Design Procedures 403

14.7 Guyed Towers 407

14.6 Plate Girder with Elastically Braced Compression Flange 407

Chapter Fifteen Multistory Frames 410

15.1 Introduction 410

15.2 Frame Buckling and Frame Instability 410

15.3 Methods of Providing Resistance to Lateral Loads 414

15.4 Effective-Column-Length Design Procedure 414

15.5 Determination of K 418

15.6 Column Base Effects on K 423

15.7 Modifications of K for Flexible Connections 423

15.8 Effects of Residual Stresses and Effective I on the Value of K 424

15.9 Floor-Diaphragm Action and Torsional Stability 425

15.10 Plastic-Design Procedure 426

15.11 P△ Design Procedure 430

15.12 Strength of Frames Designed by the Allowable-Stress Method—Comprehensive Studies 436

15.13 Frames That Can Be Designed Without Considering Frame Instability 442

15.14 Design Examples 443

Chapter Sixteen Arches 455

16.1 Introduction 455

16.2 Elastic In-Plane Buckling Under Loadings That Produce Pure Axial Compression 455

16.3 In-Plane Buckling of Arches Under General Loadings 463

16.4 Arch-Bending Analysis 468

16.5 Shallow Arches 469

16.6 The Symmetrical Shallow Arch,Symmetrically Loaded 471

16.7 Out-of-Plane Buckling of Curved Members 476

16.8 Out-of-Plane Buckling of Members Shaped as Circular Arcs 478

16.9 Out-of-Plane Buckling of Parabolic Arches 480

16.10 Braced Arches 482

16.11 Amplification of Deflections and Stresses Due to Trans-verse Forces 483

16.12 Arches of Thin-Walled Open Cross Section 484

Chapter Seventeen Stiffened Flat Plates 488

17.1 Introduction 488

17.2 Methods of Analysis 488

17.3 Elastic Buckling of Stiffened-Plate Elements Under Uniaxial Compression 489

17.4 Post-Buckling of Longitudinally Stiffened Plates Under Longitudinal Compression 494

17.5 Buckling of Orthotropic Plates 498

17.6 Combined Compression and Shear 504

17.7 Laterally Loaded Plates in Compression 507

17.8 Residual Stresses 509

17.9 Research Needs 512

Chapter Eighteen Shells and Shell-Like Structures 514

18.1 Introduction 514

18.2 General Buckling—Spherical Shell-Like Structures 516

18.3 Local Buckling—Spherical Shell-Like Structures 520

18.4 Member Buckling 521

18.5 Design Trends and Research Needs 522

19.1 Introduction 524

Chapter Nineteen Composite Columns 524

19.2 Research on Structural Shapes Encased in Concrete 526

19.3 Design of Structural Shapes Encased in Concrete 529

19.4 Steel-Encased Concrete Column Research(Concrete-Filled Steel Tubes) 540

19.5 Design of Steel-Encased Concrete Columns 542

19.6 Design Trends and Research Needs 547

Appendix A General References 552

Appendix B Technical Memoranda of Column Research Council 554

Appendix C Column Research Council 585

Appendix D Acknowledgments 589

Name Index 596

Subject Index 606