O'Reilly logo

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Multi-Scale Reliability and Serviceability Assessment of In-Service Long-Span Bridges

Book Description

With the development in global economic and transportation engineering, the traffic loads on brides have been growing steadily, which become potential safety hazards for existing bridges. In particular, long-span suspension bridges support heavy traffic volumes and simultaneous truck loads on the bridge deck, and thus the safety and serviceability of the bridge deserves investigation. In this book, a multiscale reliability method is presented for the safety assessment of long-span bridges. The multiscale failure condition of stiffness girders is the first-passage criteria for the large-scale model and the fatigue damage criteria for the small-scale model. It is the objective of this book to provide a more in-depth understanding of the vehicle-bridge interaction from the random vibration perspective. This book is suitable for adoption as a text book or a reference book in an advanced structural reliability analysis course. Furthermore, this book also provides a theoretical foundation for better understanding of the safety assessment, operation management, maintenance and reinforcement for long-span bridges and motivates further research and development for more advanced reliability and serviceability assessment techniques for long-span bridges.

Table of Contents

  1. Cover
  2. Half-title Page
  3. Title Page
  4. Copyright
  5. Contents
  6. List of Figures
  7. List of Tables
  8. Acknowledgments
  9. 1 Introduction
    1. 1.1 Research Significance
    2. 1.2 State-of-the-art Review
    3. References
  10. 2 Fatigue Reliability Assessment of Welded Steel Bridge Decks Under Stochastic Truck Loads
    1. 2.1 Introduction
    2. 2.2 Stochastic Fatigue Truck Load Model
    3. 2.3 Computational Framework of Probabilistic Modeling
    4. 2.4 Limit State Function of Fatigue Damage Accumulation
    5. 2.5 Case Study
    6. 2.6 Results and Discussion
    7. 2.7 Conclusions
    8. References
  11. 3 First-Passage Probability of the Deflection of a Cable-Stayed Bridge Under Long-Term Site-Specific Traffic Loading
    1. 3.1 Introduction
    2. 3.2 Stochastic Traffic Load Simulation Based on WIM Measurements
    3. 3.3 Methodology
    4. 3.4 Case Study
    5. 3.5 Conclusions
    6. References
  12. 4 Dynamic Reliability Evaluation of the Serviceability of Cable-Supported Bridges Under Site-Specific Heavy Traffic Loads
    1. 4.1 Introduction
    2. 4.2 Traffic–Bridge Interaction Formulation
    3. 4.3 Methodology of Probabilistic Modeling of the Extreme Traffic Load Effects
    4. 4.4 Probabilistic Modeling of the Traffic Load Effects on Two Cable-supported Bridges Using WIM Measurements
    5. 4.5 Dynamic Reliability Evaluation of the Bridge Deflection Serviceability
    6. 4.6 Conclusions
    7. References
  13. 5 Lifetime Deflections of Long-Span Bridges Under Dynamic and Growing Traffic Load
    1. 5.1 Introduction
    2. 5.2 Theoretical Bases of the Traffic-bridge Interaction and Rice’s Formula
    3. 5.3 Methodology of Evaluating Maximum Load Effects Considering Interval Traffic Growth
    4. 5.4 A Computational Framework of Extrapolating the Maximum Load Effect FF Long-Span Bridges
    5. 5.5 Verification Examples
    6. 5.6 Case Study
    7. 5.7 Conclusions
    8. References
  14. 6 System Reliability Evaluation of In-Service Cable-Stayed Bridges Subject to Cable Degradation Via a Machine Learning Based Tool
    1. 6.1 Introduction
    2. 6.2 Formulations of Cable Degradation
    3. 6.3 Framework of System Reliability Evaluation
    4. 6.4 Program Implementation of the Framework
    5. 6.5 Case Studies
    6. 6.6 Conclusions
    7. References
  15. About the Authors
  16. Index
  17. Backcover