
Recent Developments In Reliability-based Civil Engineering
By: Achintya Haldar (Editor)
Hardcover | 14 February 2006
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296 Pages
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Authored by the most active scholars in their respective areas, this volume covers the most recent developments, both theoretical and applicative, in multi-disciplinary reliability evaluation areas, many of which are cutting-edge and not discussed elsewhere in book form.The broad coverage includes the latest thoughts on design for low probability and high consequence events like the failure of the World Trade Center as well as risk acceptability based on the Life Quality Index. Other chapters discuss the development of the performance-based design concept, and the generally overlooked area of the reliability evaluation of bridges and offshore structures. Since the finite element method is routinely used for structural analyses, emphasis is put on discussing reliability evaluation using finite elements including consideration of the mesh-free finite element method. Corrosion and fatigue reliability evaluation techniques are other urgent issues that are dealt with in depth. Risk-based optimization using lifecycle cost analysis is presented. Among the many additional included topics, a chapter is devoted to health assessment of existing structures, currently one of the most active research areas.
| Preface | p. v |
| Risk and Risk Perception for Low Probability, High Consequence Events in the Built Environment | p. 1 |
| Why Risk? | p. 1 |
| Structural Reliability | p. 2 |
| Mathematical basis | p. 2 |
| Mathematical reliability versus codified design | p. 3 |
| Risk and Risk Perception | p. 4 |
| Low Probabilities and High Consequences | p. 6 |
| Issues with events of small probability | p. 6 |
| Issues with the convolution of probability and consequence | p. 7 |
| Issues of political accountability | p. 7 |
| Alternative Decision Criteria | p. 8 |
| Expected value | p. 8 |
| Minimum regret | p. 9 |
| Mini-max and as low as reasonable | p. 10 |
| Additional criteria | p. 10 |
| Societal Decision-Making | p. 11 |
| Trade-offs | p. 11 |
| Development, sustainability and intergenerational issues | p. 11 |
| Assessing risks and benefits | p. 12 |
| Economic lifetime | p. 12 |
| Utility and discounting | p. 13 |
| Probabilistic risk versus uncertainty | p. 14 |
| Objective and subjective probability | p. 14 |
| Aleatoric and epistemic uncertainty | p. 14 |
| Psychological distinctions | p. 15 |
| Risk or risk perception? | p. 15 |
| Political issues | p. 16 |
| References | p. 18 |
| Socio-Economic Risk Acceptability Criteria | p. 21 |
| Introduction | p. 21 |
| Theoretical Developments | p. 22 |
| SWTP's for Some Selected Countries | p. 27 |
| Application to Event-Type Hazards from Technical Facilities and the Natural Environment | p. 29 |
| Summary and Conclusions | p. 30 |
| References | p. 30 |
| Reliability in Structural Performance Evaluation and Design | p. 33 |
| Introduction | p. 33 |
| Reliability-Based Performance-Oriented Design | p. 34 |
| Performance goal | p. 34 |
| Reliability evaluation | p. 34 |
| Effect of capacity and epistemic uncertainty | p. 37 |
| IDA analysis of capacity against incipient collapse | p. 38 |
| Reliability-based design | p. 39 |
| Target reliability level | p. 40 |
| Minimum Lifecycle Cost Design Criteria | p. 40 |
| Design based on optimization | p. 40 |
| Design against earthquakes | p. 41 |
| Design against earthquake and wind hazards | p. 42 |
| Application to Vulnerability and Retrofit Analysis | p. 44 |
| Reliability and Redundancy | p. 47 |
| Steel moment frames of different connection ductility capacities | p. 47 |
| Uniform-risk redundancy factor R[subscript R] | p. 48 |
| Moment frames of different configurations | p. 49 |
| Concluding Remarks | p. 52 |
| Acknowledgments | p. 52 |
| References | p. 52 |
| Performance-Based Reliability Evaluation of Structure-Foundation Systems | p. 55 |
| Introduction | p. 55 |
| Reliability-Based Approaches | p. 58 |
| Performance Functions | p. 59 |
| Strength performance functions | p. 59 |
| Serviceability performance functions | p. 60 |
| System Reliability | p. 61 |
| Performance modes (PM) - Brittle behavior of piles | p. 63 |
| Evaluation of the most significant performance mode | p. 64 |
| Upper bound evaluation of the system probability of UP | p. 65 |
| Performance modes (PM) - Ductile behavior of piles | p. 66 |
| Evaluation of the most significant performance mode | p. 67 |
| Upper bound evaluation of the system probability of UP | p. 68 |
| Illustrative Examples | p. 68 |
| System reliability bounds considering brittle behavior of piles | p. 69 |
| System reliability bounds considering ductile behavior of piles | p. 70 |
| Calculation of incremental load, [Delta]P[subscript 1] | p. 70 |
| Conclusions | p. 73 |
| Acknowledgments | p. 74 |
| References | p. 74 |
| Application of Probabilistic Methods in Bridge Engineering | p. 77 |
| Introduction | p. 77 |
| Code Calibration | p. 78 |
| Application to Bridge Engineering | p. 79 |
| Resistance modeling | p. 79 |
| Load modeling | p. 80 |
| Example | p. 81 |
| Reliability of Bridge Structural Systems | p. 82 |
| Series systems | p. 83 |
| Ditlevsen's bounds for systems in series | p. 83 |
| Parallel systems | p. 84 |
| Example | p. 85 |
| Generation of failure modes | p. 86 |
| Response Surface Method | p. 86 |
| Genetic Algorithms in Bridge System Reliability | p. 88 |
| Genetic algorithm method | p. 89 |
| Illustrative example | p. 90 |
| Analysis of cable-stayed bridge | p. 92 |
| Concluding Remarks | p. 95 |
| Acknowledgments | p. 95 |
| References | p. 95 |
| Stochastic Response of Fixed Offshore Structures | p. 99 |
| Introduction | p. 99 |
| Sources of nonlinearities | p. 99 |
| Frequency-domain analyses of wave loadings | p. 100 |
| Volterra series approach | p. 101 |
| Cumulant spectral approach | p. 101 |
| Polynomial Approximation of Nonlinear Wave Forces | p. 102 |
| Morison and inundation drag forces | p. 103 |
| Least squares approximation (LSA) | p. 104 |
| Moment-based approximation (MBA) | p. 105 |
| Volterra-Series Based Frequency-Domain Analysis | p. 106 |
| A third-order Volterra series model | p. 106 |
| Application to spectral analysis of wave force | p. 107 |
| Power-spectrum of F | p. 109 |
| Power-spectrum of P | p. 109 |
| Higher-order spectra analysis of F | p. 110 |
| Cumulant Spectral Analysis | p. 110 |
| Input-output spectral relationship | p. 110 |
| Correlation functions of F & P | p. 112 |
| Fourth-order cumulant function of Q | p. 113 |
| Fourth-order moment function of D | p. 115 |
| Time-Domain Simulations | p. 117 |
| Linear wave | p. 117 |
| Nonlinear wave | p. 118 |
| Numerical example | p. 119 |
| Concluding Remarks | p. 122 |
| References | p. 122 |
| Application of Reliability Methods to Fatigue Analysis and Design | p. 125 |
| The Fatigue Process | p. 125 |
| Engineering Descriptions of Fatigue Strength | p. 126 |
| Miner's Rule | p. 127 |
| Uncertainties in the Fatigue Process | p. 130 |
| Strength modeling error; The quality of Miner's rule | p. 130 |
| Strength uncertainty | p. 130 |
| Stress uncertainty | p. 130 |
| Managing Uncertainty; Structural Reliability | p. 131 |
| Example. The Lognormal Format | p. 131 |
| Same Example ... Different Statistical Distributions | p. 133 |
| Reliability Analysis when Life is an Implicit Function | p. 134 |
| Comments; A More General Case Where System Reliability is a Consideration and Maintenance is Performed | p. 135 |
| Fatigue Design Criteria | p. 135 |
| Fatigue design criteria; The design stress approach | p. 136 |
| Target damage level | p. 136 |
| Fatigue design criteria; Factor of safety on life | p. 137 |
| Partial safety factor format | p. 137 |
| Concluding Remarks | p. 139 |
| References | p. 139 |
| Probabilistic Models for Corrosion in Structural Reliability Assessment | p. 141 |
| Introduction | p. 141 |
| Factors in Marine Corrosion | p. 143 |
| Probabilistic Model for Marine General Corrosion | p. 145 |
| General form | p. 145 |
| Mean value model | p. 146 |
| Calibration of mean value model | p. 148 |
| Bias and uncertainty functions b(t,T) and [epsilon](t,T) | p. 150 |
| Example application | p. 152 |
| Probabilistic Model for Marine Pitting Corrosion | p. 152 |
| Background | p. 152 |
| Probabilistic pit growth model | p. 154 |
| Dependence and homogeneity for maximum pit depths | p. 156 |
| Comparison | p. 157 |
| Other Factors | p. 158 |
| Steel composition | p. 158 |
| Water velocity | p. 159 |
| Saline and brackish waters | p. 159 |
| Water pollution | p. 160 |
| Season of first immersion | p. 161 |
| Conclusion | p. 161 |
| Acknowledgments | p. 161 |
| References | p. 161 |
| Seismic Risk Assessment of Realistic Frame Structures Using a Hybrid Reliability Method | p. 165 |
| Introduction | p. 165 |
| A Unified Time-Domain Reliability Assessment of Real Structures | p. 166 |
| Deterministic finite element method for dynamic analysis | p. 167 |
| Systematic response surface method | p. 167 |
| Consideration of uncertainty | p. 169 |
| Limit state function for risk assessment | p. 170 |
| Strength limit state | p. 170 |
| Serviceability limit state | p. 171 |
| Solution strategy | p. 172 |
| Reliability Estimation of Frames with PR Connections | p. 172 |
| Modeling of PR connections | p. 172 |
| Incorporation of PR connections into the FEM | p. 174 |
| Uncertainties in the connection model | p. 175 |
| Reliability Estimation of In-Filled Frames | p. 175 |
| Modeling of shear walls | p. 175 |
| Incorporation of shear walls into the FEM | p. 176 |
| Numerical Examples | p. 177 |
| Example 1 - Seismic reliability of steel frame structures with FR and PR connections | p. 177 |
| Seismic risk of the frame with FR connections | p. 177 |
| Seismic risk of the frame with PR connections | p. 180 |
| Example 2 - In-filled steel frame structures | p. 181 |
| Reliability analysis of the frame without shear walls | p. 181 |
| Reliability analysis of the frame with shear walls | p. 183 |
| Conclusions | p. 185 |
| Acknowledgments | p. 185 |
| References | p. 185 |
| Meshfree Methods in Computational Stochastic Mechanics | p. 187 |
| Introduction | p. 187 |
| The Element-Free Galerkin Method | p. 188 |
| Moving least squares and meshless shape function | p. 188 |
| Variational formulation and discretization | p. 190 |
| Essential boundary conditions | p. 192 |
| Random Field and Parameterization | p. 192 |
| Karhunen-Loeve representation | p. 192 |
| Gaussian and translation random fields | p. 193 |
| Meshfree method for solving integral equation | p. 194 |
| Example 1: Eigensolution for a two-dimensional domain | p. 195 |
| Multivariate Function Decomposition | p. 197 |
| Univariate approximation | p. 198 |
| Bivariate approximation | p. 200 |
| Generalized S-variate approximation | p. 200 |
| Statistical Moment Analysis | p. 201 |
| General stochastic response | p. 201 |
| Discrete equilibrium equations | p. 202 |
| Example 2: Response statistics of a plate with a hole | p. 203 |
| Reliability Analysis | p. 205 |
| Response surface generation | p. 206 |
| Monte Carlo simulation | p. 207 |
| Example 3: Reliability analysis of a plate with a hole | p. 208 |
| Conclusions and Outlook | p. 210 |
| Acknowledgments | p. 210 |
| References | p. 211 |
| Reliability Analysis Using Information from Experts | p. 213 |
| Introduction | p. 213 |
| Procedure | p. 216 |
| Data Collection Process | p. 217 |
| Probability Encoding | p. 218 |
| Biases in Data | p. 220 |
| Summary and Conclusions | p. 225 |
| References | p. 226 |
| Risk-Based Optimization of Life-Cycle Cost for Deteriorating Civil Engineering Infrastructures | p. 227 |
| Introduction | p. 227 |
| Cost-Benefit Optimal Technical Facilities | p. 228 |
| The Renewal Model for Systematic Replacement | p. 229 |
| Discounting | p. 229 |
| Basic renewal model | p. 229 |
| Constant benefit and discount rates | p. 230 |
| Non-constant discounting | p. 231 |
| Non-constant benefit | p. 232 |
| Deteriorating Structures and Numerical Laplace Transforms | p. 233 |
| Renewal Models for Series Systems of Deteriorating Components | p. 234 |
| Independent failure modes and different failure causes including obsolescence | p. 234 |
| Dependent failure modes | p. 234 |
| r-of-s-system of deteriorating components | p. 236 |
| Inspection and Repair of Aging Components | p. 237 |
| Numerical Techniques of Optimization | p. 239 |
| Principles of a one-level approach | p. 239 |
| Formulations for time-variant problems | p. 239 |
| Examples | p. 240 |
| Random capacity and random demand | p. 240 |
| Optimal replacement of a series system of corroding dependent expansion joints[superscript 10] | p. 243 |
| Optimal replacement of a reinforced concrete structure (r-of-s-system) subject to chloride corrosion in warm sea water | p. 245 |
| Conclusions | p. 246 |
| References | p. 247 |
| Structural Health Assessment Under Uncertainty | p. 249 |
| Introduction | p. 249 |
| ILS-EKF-UI Method | p. 251 |
| GILS-EKF-UI Method | p. 257 |
| Numerical Examples | p. 262 |
| Example 1 | p. 262 |
| Example 2 | p. 264 |
| Example 3 | p. 266 |
| Conclusions | p. 267 |
| Acknowledgments | p. 268 |
| References | p. 268 |
| Index | p. 271 |
| Table of Contents provided by Ingram. All Rights Reserved. |
ISBN: 9789812564191
ISBN-10: 9812564195
Published: 14th February 2006
Format: Hardcover
Language: English
Number of Pages: 296
Audience: Professional and Scholarly
Publisher: World Scientific Publishing Co Pte Ltd
Country of Publication: GB
Dimensions (cm): 25.3 x 16.6 x 2.4
Weight (kg): 0.76
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