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TOC

Chapter 1
Introduction
Purpose
Applicability
Distribution
References
Background
Mandatory Requirements

Chapter 2
Causes of Structural Deterioration
Corrosion
Fracture
Fatigue
Design Deficiencies
Fabrication Discontinuities
Operation and Maintenance
Unforeseen Loading

Chapter 3
Periodic Inspection
Purpose of Inspection
Inspection Procedures
Critical Members and Connections
Visual Inspection
Critical Area Checklist
Inspection Intervals

Chapter 4
Detailed Inspection
Introduction
Purpose of Inspection
Inspection Procedures
Inspector Qualifications
Summary of NDT Methods
Discontinuity Acceptance Criteria for Weldments

Chapter 5
Material and Weld Testing
Purpose of Testing
Selection of Samples from Existing Structure
Chemical Analysis
Tension Test
Bend Test
Fillet Weld Shear Test
Hardness Test
Fracture Toughness Test

Chapter 6
Structural Evaluation
Purpose of Evaluation
Fracture Behavior of Steel Materials
Fracture Analysis
Linear-Elastic Fracture Mechanics
Elastic-Plastic Fracture Assessment
Fatigue Analysis
Fatigue Crack-Propagation
Fatigue Assessment Procedures
Evaluation of Corrosion Damage
Evaluation of Plastically Deformed Members
Development of Inspection Schedules
Recommended Solutions for Distressed Structures

Chapter 7
Examples and Material Standards
Determination of Fracture Toughness
Example Fracture Analysis
Example Fatigue Analysis
Example of Fracture and Fatigue Evaluation
Structural Steels Used on Older Hydraulic Steel Structures

Chapter 8
Repair Considerations
General
Corrosion Considerations
Detailing to Avoid Fracture
Repair of Cracks
Rivet Replacement
Repair Examples a

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