Structural Materials Technology: An NDT Conference (1996)

Cover......Page 1
Title Page......Page 2
Copyright Page......Page 3
Table of Contents......Page 4
Preface......Page 10
 Developing NDT Technologies for the Next Century......Page 14
 Nondestructive Testing and Assessment of Bridges......Page 24
Session 1......Page 30
  Ultrasonic Techniques for the Bonding of Rebar in Concrete Structures......Page 32
  Design, Optimization, and Management of Cathodic Protection of Rebars in Bridges......Page 38
  Measuring Dielectric Properties of Portland Cement Concrete: New Methods......Page 45
  Ultrasonic Inspection of Bridge Pin and Hanger Assemblies......Page 57
  Ultrasonic Evaluation of Steel Bridge Girders over Long Ranges......Page 63
  A Computerized Imaging System for Ultrasonic Inspection of Steel Bridge Structures......Page 69
Session 2......Page 76
  Underwater Non-Destructive Testing for Bridge Substructure Evaluation......Page 78
  Detection of Delaminations in Concrete Using a Wideband Radar......Page 84
  Measurement of As-Built Conditions Using Ground Penetrating Radar......Page 90
  Field Test Results of an Ultrasonic Applied Stress Measurement System for Fatigue Load Monitoring......Page 97
  Computerized Fracture Critical Bridge Inspection Program with NDE Applications......Page 103
  NJDOT Structural Inspection Training Needs......Page 109
  Time Domain Reflectometry Monitoring of Bridge Integrity and Performance......Page 114
  Determination of Unknown Depth of Bridge Foundations Using Nondestructive Testing Methods......Page 120
  Impulse Response Evaluation of Drilled Shafts at the NGES Test Section at Northwestern University......Page 127
  Detection of Fatigue Cracks in Eyebars Using Time of Flight Diffraction......Page 133
  Fatigue Evaluation of Highway Bridges Using Ultrasonic Technique......Page 139
  Nondestructive Tests for Bridge Fatigue Damage Detection......Page 145
  A Nondestructive Technique for Monitoring and Evaluating the Stability of Concrete Highway Bridges......Page 151
  An Efficient Method for Evaluating the Load Response Behaviour of Steel and Prestress Concrete Bridges......Page 157
  Evaluation of a New Strain Monitoring Device......Page 163
  Emergency Monitoring of the Williamsburg Bridge, New York City......Page 168
  Quantitative Bridge Safety Assessment Utilizing Fracture Mechanics and Ultrasonic Stress Measurements......Page 175
  Computer Stereo Vision Method for NDE of Bridges......Page 182
  Fracture Critical Inspection and Global Remote Monitoring of Michigan Street Lift Bridge, Sturgeon Bay, Wisconsin......Page 187
Session 3......Page 194
  Nondestructive Evaluation of Timber Pile Length......Page 196
  Impulse Response Testing to Detect Cracks in Bridge Eyebars......Page 202
  Ultrasonic Measurement of Applied Stress in Steel Highway Bridges......Page 208
  Privatization versus In-House State Forces for Structural Inspections......Page 214
  Analysis–Reality and How the Two Compare......Page 221
  A Passive Structural Health Monitoring System for Bridges......Page 227
  Applications of the Impact-Echo Method for Detecting Flaws in Highway Bridges......Page 233
  Damage Assessment by Impact Thsting......Page 239
  Non-Destructive Evaluation of Fatigue Cracking......Page 245
  The Use of Still Image Transmissions as an NDT Tool......Page 252
  Objective Bridge Condition Assessment......Page 257
  Bridge Inspection and Assessment–Virginia Department of Transportation......Page 262
  Use of Impact-Echo Method in Bridge Monitoring......Page 268
  Development of a Wireless Global Bridge Evaluation and Monitoring System......Page 274
  Bridge Non-Destructive Testing Using an Optical Fiber Sensor System......Page 281
  Non-Destructive Testing Technical Internet System......Page 286
  Monitoring of Truck Loads......Page 291
  Nondestructive Search for Existing PC Cable in Shinkansen Elevated Track......Page 297
  Fiberscope Inspection of Concrete Box Girder Bridge Sections Following the Northridge Earthquake......Page 303
  Developing a Portable Crack Evaluation Tool Based on Shearography......Page 308
  Finite Element Modeling of a Pin-Hanger Connection......Page 313
Session 4......Page 320
  Nondestructive Evaluation of Bridge Foundations......Page 322
  Electrical Resistance Tomography for Imaging Concrete Structures......Page 328
  Study on Limitations of Thermographic Survey Applied to the Detection of Delamination in Concrete Structures......Page 334
  Discriminatory Analysis of the Ultrasonic Method for the Quality of Pored Cast-in-situ Piles......Page 340
  Study of Fatigue Cracks in Steel Bridge Components Using Acoustic Emissions......Page 346
  Acoustic Emission Detection, Characterization, and Monitoring of Steel Bridge Members......Page 352
  Application of Acoustic Emission, Strain Gage, and Optical Sensors to Moveable Bridges......Page 358
  Use of Plate Wave Analysis in Acoustic Emission Testing to Detect and Measure Crack Growth in Noisy Environments......Page 364
  Electrical Resistance Tomography for Imaging the Spatial Distribution of Moisture in Pavement Sections......Page 371
  Determining Concrete Highway Pavement Thickness Using Wave Speed Measurements and the Impact-Echo Method......Page 377
  Instrumentation of Geosynthetically Stabilized Flexible Pavement......Page 383
  New Wave Propagation Devices for Nondestructive Testing of Pavements and Bridge Decks......Page 392
  Use of NDE Methods in Early Detection of Deterioration in Concrete Pavements......Page 398
  Laboratory Radar Evaluation of Concrete Decks and Pavements with and without Asphalt Overlay......Page 402
  Current NDT Procedures for Pavement Structural Evaluation......Page 407
Author Index......Page 416