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Structural Seismic Design Optimization and Earthquake Engineering

Book Description

Throughout the past few years, there has been extensive research done on structural design in terms of optimization methods or problem formulation. But, much of this attention has been on the linear elastic structural behavior, under static loading condition. Such a focus has left researchers scratching their heads as it has led to vulnerable structural configurations. What researchers have left out of the equation is the element of seismic loading. It is essential for researchers to take this into account in order to develop earthquake resistant real-world structures. Structural Seismic Design Optimization and Earthquake Engineering: Formulations and Applications focuses on the research around earthquake engineering, in particular, the field of implementation of optimization algorithms in earthquake engineering problems. Topics discussed within this book include, but are not limited to, simulation issues for the accurate prediction of the seismic response of structures, design optimization procedures, soft computing applications, and other important advancements in seismic analysis and design where optimization algorithms can be implemented. Readers will discover that this book provides relevant theoretical frameworks in order to enhance their learning on earthquake engineering as it deals with the latest research findings and their practical implementations, as well as new formulations and solutions.

Table of Contents

  1. Cover
  2. Title Page
  3. Copyright Page
  4. Editorial Advisory Board and List of Reviewers
    1. Editorial Advisory Board
  5. Foreword
  6. Preface
  7. Acknowledgment
  8. Chapter 1: Life Cycle Cost Considerations in Seismic Design Optimization of Structures
    1. ABSTRACT
    2. INTRODUCTION
    3. BACKGROUND ON STRUCTURAL OPTIMIZATION
    4. LIFE-CYCLE COST FORMULATION
    5. EXAMPLE APPLICATION
    6. FUTURE RESEARCH DIRECTIONS
    7. CONCLUSION
  9. Chapter 2: Performance-Based Seismic Design
    1. ABSTRACT
    2. INTRODUCTION
    3. 1. THE OPTIMIZATION FORMULATION
    4. 2. NONLINEAR DYNAMIC ANALYSIS MODEL
    5. 3. RESPONSE REPRESENTATION BY NEURAL NETWORKS
    6. 4. SEARCH-BASED OPTIMIZATION FOR THE DESIGN PARAMETERS
    7. 5. OBJECTIVE FUNCTION: THE TOTAL COST
    8. 6. APPLICATION EXAMPLE 1: OPTIMIZATION OF A SIMPLE PORTAL FRAME
    9. 7. APPLICATION EXAMPLE 2: OPTIMIZATION OF THE PILE-CAP MASS FOR A PILE FOUNDATION, AND SENSITIVITY TO THE ANALYSIS MODEL USED
    10. 8. CONCLUSION
  10. Chapter 3: Discrete Variable Structural Optimization of Systems under Stochastic Earthquake Excitation
    1. ABSTRACT
    2. INTRODUCTION
    3. FORMULATION
    4. STRUCTURAL MODEL
    5. EARTHQUAKE EXCITATION MODEL
    6. SEQUENTIAL OPTIMIZATION
    7. STOCHASTIC ANALYSIS
    8. NUMERICAL EXAMPLES
    9. CONCLUSION
  11. Chapter 4: A Multi-Hazard Framework for Optimum Life-Cycle Cost Design of Reinforced Concrete Bridges
    1. ABSTRACT
    2. 1. INTRODUCTION
    3. 2. CORROSION INITIATION AND PROPAGATION
    4. 3. STRUCTURAL DEGRADATION DUE TO CORROSION
    5. 4. BRIDGE MODELING
    6. 5. PROBABILISTIC LIFE-TIME FRAGILITY ANALYSIS
    7. 6. LIFE-CYCLE COST ANALYSIS OF DEGRADED BRIDGES
    8. 7. CONCLUSION
  12. Chapter 5: Efficient Robust Optimization of Structures Subjected to Earthquake Load and Characterized by Uncertain Bounded System Parameters
    1. ABSTRACT
    2. INTRODUCTION
    3. BACKGROUND
    4. SUMMARY AND CONCLUSION
  13. Chapter 6: Damage Assessment of Inelastic Structures under Simulated Critical Earthquakes
    1. ABSTRACT
    2. 1. INTRODUCTION
    3. 2. DAMAGE ASSESSMENT OF INELASTIC STRUCTURES UNDER EARTHQUAKE LOADS
    4. 3. DERIVATION OF WORST FUTURE EARTHQUAKE LOADS
    5. 4. NUMERICAL EXAMPLES
    6. 5. CONCLUDING REMARKS
  14. Chapter 7: Metaheuristic Optimization in Seismic Structural Design and Inspection Scheduling of Buildings
    1. ABSTRACT
    2. INTRODUCTION
    3. LIFE-CYCLE COST ASSESSMENT OF OPTIMALLY DESIGNED REINFORCED CONCRETE BUILDINGS UNDER SEISMIC ACTIONS
    4. METAHEURISTIC OPTIMIZATION FOR THE INSPECTION SCHEDULING OF BUILDINGS
    5. STEP 1: OPTIMUM ASSIGNMENT PROBLEM
    6. STEP 2: INSPECTION PRIORITIZATION PROBLEM
    7. PARTICLE SWARM OPTIMIZATION ALGORITHM
    8. ANT COLONY OPTIMIZATION
    9. CASE STUDY
    10. CONCLUSION
  15. Chapter 8: Optimal Performance-Based Seismic Design
    1. ABSTRACT
    2. INTRODUCTION
    3. INTRODUCTION TO PERFORMANCE-BASED DESIGN
    4. A BRIEF LOOK INTO NONLINEAR ANALYSES
    5. DESIGN OPTIMIZATION
    6. SENSITIVITY ANALYSIS
    7. OPTIMIZATION IN PERFORMANCE-BASED DESIGN
    8. FUTURE RESEARCH DIRECTIONS
    9. CONCLUSION
  16. Chapter 9: Optimal Seismic Performance-Based Design of Reinforced Concrete Buildings
    1. ABSTRACT
    2. 1. INTRODUCTION
    3. 2. SINGLE OBJECTIVE DESIGN OPTIMIZATION PROBLEM
    4. 3. MULTIOBJECTIVE DESIGN OPTIMIZATION PROBLEM
    5. 4. ILLUSTRATIVE EXAMPLE
    6. 5. CONCLUSION
  17. Chapter 10: Applications of Topology Optimization Techniques in Seismic Design of Structure
    1. ABSTRACT
    2. 1. INTRODUCTION
    3. 2. TOPOLOGY OPTIMIZATION
    4. 3. STRUCTURAL RESPONSES UNDER DYNAMIC LOADS
    5. 4. MAXIMIZING EIGENFREQUENCIES IN FREE VIBRATION
    6. 5. MULTIPLE EIGENFREQUENCIES
    7. 6. CONTROLLING THE NATURAL FREQUENCIES
    8. 7. FORCED VIBRATION
    9. 8. OTHER CONSIDERATIONS
    10. 9. MAXIMIZING ENERGY ABSORPTION
    11. 10. CONCLUSION
  18. Chapter 11: Overall Conceptual Seismic Design and Local Seismic Capacity Design for Components of Bridges
    1. ABSTRACT
    2. INTRODUCTION
    3. BACKGROUND
    4. OVERALL CONCEPTUAL SEISMIC DESIGN FOR BRIDGES
    5. LOCAL SEISMIC CAPACITY DESIGN FOR COMPONENTS OF BRIDGES
    6. FUTURE RESEARCH DIRECTIONS
    7. CONCLUSION
  19. Chapter 12: Optimum Design of Structures for Earthquake Loading by a Cellular Evolutionary Algorithm and Neural Networks
    1. ABSTRACT
    2. INTRODUCTION
    3. BACKGROUND
    4. MAIN FOCUS OF THE CHAPTER
    5. DISCUSSION
    6. FUTURE RESEARCH DIRECTIONS
    7. CONCLUSION
  20. Chapter 13: Fuzzy Identification of Seismically Excited Smart Systems
    1. ABSTRACT
    2. 1. INTRODUCTION
    3. 2. FUZZY LOGIC MODEL
    4. 3. AUTOREGRESSIVE-EXOGENOUS INPUT TAKAGI-SUGENO FUZZY MODEL
    5. 4. OPTIMIZATION OF MIMO ARX-TS FUZZY MODEL
    6. 5. CASE STUDY
    7. 6. FUTURE RESEARCH DIRECTIONS
    8. 7. CONCLUSION
  21. Chapter 14: Health Assessment of Engineering Structures Using Graphical Models
    1. ABSTRACT
    2. 1. INTRODUCTION
    3. 2. BOND GRAPH THEORY AND TERMINOLOGY
    4. 3. MODELING DISCRETE DYNAMIC STRUCTURES USING BOND GRAPHS
    5. 4. MODELING CONTINUOUS STRUCTURES USING FINITE-MODE BOND GRAPHS
    6. 5. CONSTRUCTING TEMPORAL CAUSAL GRAPH FROM BOND GRAPH
    7. 6. MODELING SENSOR FAULTS USING BOND GRAPHS
    8. 7. EXTRACTION OF DAMAGE SIGNATURES FROM TEMPORAL CAUSAL GRAPH
    9. 8. HYBRID QUALITATIVE-QUANTITATIVE SYSTEM IDENTIFICATION TECHNIQUE
    10. 9. NUMERICAL ILLUSTRATIONS
    11. 10. CONCLUDING REMARKS AND FUTURE CHALLENGES
  22. Chapter 15: Optimal Design of Nonlinear Viscous Dampers for Protection of Isolated Bridges
    1. ABSTRACT
    2. INTRODUCTION
    3. PROBABILISTIC DESIGN FRAMEWORK
    4. BRIDGE MODEL
    5. EXCITATION MODEL
    6. STOCHASTIC ANALYSIS, OPTIMIZATION, AND SENSITIVITY
    7. ILLUSTRATIVE EXAMPLE
    8. FUTURE RESEARCH DIRECTIONS
    9. CONCLUSION
  23. Compilation of References
  24. About the Contributors