Ultimate Limit State Analysis and Design of Plated Structures

Reviews and describes both the fundamental and practical design procedures for the ultimate limit state design of ductile steel plated structures

The new edition of this well-established reference reviews and describes both fundamentals and practical design procedures for steel plated structures. The derivation of the basic mathematical expressions is presented together with a thorough discussion of the assumptions and the validity of the underlying expressions and solution methods.

Furthermore, this book is also an easily accessed design tool, which facilitates learning by applying the concepts of the limit states for practice using a set of computer programs, which can be downloaded.

Ultimate Limit State Design of Steel Plated Structures provides expert guidance on mechanical model test results as well as nonlinear finite element solutions, sophisticated design methodologies useful for practitioners in industries or research institutions, and selected methods for accurate and efficient analyses of nonlinear behavior of steel plated structures both up to and after the ultimate strength is reached.

• Covers recent advances and developments in the field

• Includes new topics on constitutive equations of steels, test database associated with low/elevated temperature, and strain rates

• Includes a new chapter on a semi-analytical method

• Supported by a companion website with illustrative example data sheets

• Provides results for existing mechanical model tests

• Offers a thorough discussion of assumptions and the validity of underlying expressions and solution methods

Designed as both a textbook and a handy reference, Ultimate Limit State Design of Steel Plated Structures, Second Edition is well suited to teachers and university students who are approaching the limit state design technology of steel plated structures for the first time. It also meets the needs of structural designers or researchers who are involved in civil, marine, and mechanical engineering as well as offshore engineering and naval architecture.

Autorentext

JEOM KEE PAIK
University College London, UK and Pusan National University, Korea DR. JEOM KEE PAIK is Professor of Marine Technology in the Department of Mechanical Engineering at University College London in the UK and Professor of Safety Design and Engineering in the Department of Naval Architecture and Ocean Engineering at Pusan National University in Korea. He is an honorary professor at University of Strathclyde, Glasgow, UK, and at Southern University of Science and Technology, Shenzhen, China.

Inhalt
Preface xvii

About the Author xix

How to Use This Book xxi

1 Principles of Limit State Design 1

1.1 Structural Design Philosophies 1

1.1.1 Reliability-Based Design Format 3

1.1.2 Partial Safety Factor-Based Design Format 5

1.1.3 Failure Probability-Based Design Format 6

1.1.4 Risk-Based Design Format 7

1.2 Allowable Stress Design Versus Limit State Design 7

1.2.1 Serviceability Limit State Design 9

1.2.2 Ultimate Limit State Design 10

1.2.3 Fatigue Limit State Design 11

1.2.4 Accidental Limit State Design 15

1.3 Mechanical Properties of Structural Materials 17

1.3.1 Characterization of Material Properties 17

1.3.1.1 Young's Modulus,E 19

1.3.1.2 Poisson's Ratio,v 19

1.3.1.3 Elastic Shear Modulus,G 19

1.3.1.4 Proportional Limit, P 20

1.3.1.5 Yield Strength, Y, and Yield Strain, Y 20

1.3.1.6 Strain-Hardening Tangent Modulus, Eh, and Strain-Hardening Strain, h 20

1.3.1.7 Ultimate Tensile Strength, T 20

1.3.1.8 Necking Tangent Modulus, En 22

1.3.1.9 Fracture Strain, F, and Fracture Stress, F 22

1.3.2 ElasticPerfectly Plastic Material Model 23

1.3.3 Characterization of the Engineering StressEngineering Strain Relationship 23

1.3.4 Characterization of the True StressTrue Strain Relationship 25

1.3.5 Effect of Strain Rates 29

1.3.6 Effect of Elevated Temperatures 29

1.3.7 Effect of Cold Temperatures 30

1.3.8 Yield Condition Under Multiple Stress Components 34

1.3.9 The Bauschinger Effect: Cyclic Loading 37

1.3.10 Limits of Cold Forming 38

1.3.11 Lamellar Tearing 39

1.4 Strength Member Types for Plated Structures 39

1.5 Types of Loads 41

1.6 Basic Types of Structural Failure 42

1.7 Fabrication Related Initial Imperfections 43

1.7.1 Mechanism of Initial Imperfections 44

1.7.2 Initial Distortion Modeling 44

1.7.2.1 Plate Initial Deflection 47

1.7.2.2 Column-Type Initial Deflection of a Stiffener 56

1.7.2.3 Sideways Initial Distortion of a Stiffener 56

1.7.3 Welding Residual Stress Modeling 56

1.7.4 Modeling of Softening Phenomenon 59

1.8 Age Related Structural Degradation 60

1.8.1 Corrosion Damage 60

1.8.2 Fatigue Cracks 69

1.9 Accident Induced Damage 73

References 73

2 Buckling and Ultimate Strength of PlateStiffener Combinations: Beams, Columns, and BeamColumns 79

2.1 Structural Idealizations of PlateStiffener Assemblies 79

2.2 Geometric Properties 82

2.3 Material Properties 82

2.4 Modeling of End Conditions 83

2.5 Loads and Load Effects 84

2.6 Effective Width Versus Effective Breadth of Attached Plating 85

2.6.1 Shear Lag-Induced Ineffectiveness: Effective Breadth of the Attached Plating 88

2.6.2 Buckling-Induced Ineffectiveness: Effective Width of the Attached Plating 91

2.6.3 Combined Shear Lag-Induced and Buckling-Induced Ineffectiveness 93

2.7 Plastic Cross-Sectional Capacities 93

2.7.1 Axial Capacity 93

2.7.2 Shear Capacity 93

2.7.3 Bending Capacity 94

2.7.3.1 Rectangular Cross Section 94

2.7.3.2 PlateStiffener Combination Model Cross Section 95

2.7.4 Capacity Under Combined Bending and Axial Load 96

2.7.4.1 Rectangular Cross Section 97

2.7.4.2 PlateStiffener Combination Model Cross Section 98

2.7.5 Capacity Under Combined Bending, Axial Load, and Shearing Force 99

2.8 Ultimate Strength of the PlateStiffener Combination Model Under Bending 100

2.8.1 Cantilever Beams 101

2.8.2 Beams Simply Supported at Both Ends 102

2.8.3 Beams Simply Supported at One End and Fixed at the Other End 103

2.8.4 Beams Fixed at Both Ends 106

2.8.5 Beams Partially Rotation Restrained at Both Ends 107 2.8.6 Lateral-Torsional Buckling 1...