Bridge Evaluation, Repair and Rehabilitation

1. Front Matter

   Pages i-xviii

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2. Management

   1. Front Matter

      Pages 1-1

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   2. Bridge Management — The Answer to the Challenge

      • J. J. Ahlskog

      Pages 3-10

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   3. Danbro — A Bridge Management System for Many Levels

      • Niels H. Andersen

      Pages 11-21

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   4. Emerging Methodologies for Bridge Management Systems

      • K. C. Sinha, M. D. Bowman, Y. Jiang, S. Murthy, M. Saito, A.-B. Tee

      Pages 23-39

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   5. A Network Optimization System for Maintenance and Improvement of California’s Bridges

      • Kamal Golabi, Paul D. Thompson

      Pages 41-55

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   6. State of the Art for Control of Bridge Approach Settlement

      • Daniel J. Thiele, Maher K. Tadros, Joseph V. Benak

      Pages 57-70

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3. Diagnostics and Monitoring

   1. Front Matter

      Pages 71-71

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   2. Diagnostic Procedures for Bridges

      • Andrzej S. Nowak

      Pages 73-84

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   3. Long-Term Monitoring of Bridge Deformation

      • R. Favre, I. Markey

      Pages 85-100

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   4. Flaw Detection in Concrete Using the Impact-Echo Method

      • Nicholas J. Carino, Mary Sansalone

      Pages 101-118

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   5. Applications with Optical Fiber Sensor System for Monitoring Prestressed Concrete Structures

      • R. Wolff, H.-J. Miesseler

      Pages 119-132

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   6. Detection of Structural Changes in a Bridge Model

      • M. S. Agbabian, S. F. Masri, M.-I. Traina, O. Waqfi

      Pages 133-143

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   7. Detection, Diagnosis, and Monitoring of Cracked Prestressed Concrete Bridges

      • J. Chatelain, B. Godart, J. L. Duchene

      Pages 145-159

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   8. Modal Technology for Damage Detection of Bridges

      • M. Biswas, A. K. Pandey, M. M. Samman

      Pages 161-174

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   9. A Dynamic Method for the Safety Inspection of Large Prestressed Bridges

      • R. G. Flesch, K. Kernbichler

      Pages 175-185

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   10. Improved Structural Monitoring with Acoustic Emission Pattern Recognition

       • David W. Prine, Theodore Hopwood II

       Pages 187-199

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   11. Diagnosis of Reinforced Structures: An Active Microwave Imaging System

       • Ch. Pichot, P. Trouillet

       Pages 201-215

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   12. Monitoring Prestress Forces in a Box Girder Bridge

       • M. “Saiid” Saiidi, Joseph Shields, Rodney Johnson

       Pages 217-228

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   13. Assessment of Bridge Deck Repairs by a Non-Destructive Technique

       • A. G. Davis, B. H. E. Hertlein

       Pages 229-233

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Evaluation, repair and rehabilitation of bridges are increasingly important topics in the effort to deal with the deteriorating infrastructure. For example, in the United States about 40 percent of the nation's 570,000 bridges are classified, according to the Federal Highway Administra­ tion's (FHW A) criteria, as deficient and in need of rehabilitation and replacement. In other countries the situation is similar. FHW A estimates the cost of a bridge replacement and reha­ bilitation program at 50 billion dollars. The major factors that have contributed to the present situation are: the age, inadequate maintenance, increasing load spectra and environmental contamination. The deficient bridges are posted, repaired or replaced. The disposition of bridges involves clear economical and safety implications. To avoid high costs of replacement or repair, the evaluation must accurately reveal the present load carrying capacity of the struc­ ture and predict loads and any further changes in the capacity (deterioration) in the applicable time span. Accuracy of bridge evaluation can be improved by using the recent developments in bridge diagnostics, structural tests, material tests, structural analysis and probabilistic methods. There is a need for an international exchange of advanced experience to increase the research effi­ ciency. The Workshop is organized on the premise that the exchange of existing American and European experience in the area of bridge evaluation, repair and rehabilitation is beneficial for both parties involved.

• concrete
• fatigue
• girder
• modeling
• prestressed concrete
• reinforced concrete
• structure

• Department of Civil Engineering, University of Michigan, Ann Arbor, USA

  Andrzej S. Nowak

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