Nondestructive Evaluation Methods for Structures · PDF fileNondestructive Evaluation Methods...

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Nondestructive Evaluation Methods for Structures Presented by Matthew Donahue, P.E. Dan Stromberg, S.E., P.E.

Transcript of Nondestructive Evaluation Methods for Structures · PDF fileNondestructive Evaluation Methods...

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Nondestructive Evaluation Methods for Structures

Presented by

Matthew Donahue, P.E.

Dan Stromberg, S.E., P.E.

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2www.dailyconstant.blogspot.com

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Presentation Overview

• Summary of NDE Use

• NHI 130099 BINS Course

• Highlight 31 NDE methods

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Silver Bridge FailureDecember 15, 1967

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Summary of NDE Use

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NDE Methods Stated by State Highway Agencies Used for Inspection (Participation by 45 States)

# of States

Visual 45

Dye Penetrant 36

Ultrasonic 29

Magnetic Particle 22

Sonic 6

Eddy Current 5

Boroscope 3

Radiography 2

Ground Penetrating Radar 2

Infrared Thermography 1

Based on FHWA Peer Exchange Survey from 2002

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NBIS (23 CFR 650C)

§ 650.311   Frequency

• Establish criteria to determine the level and frequency of inspections.

§ 650.313   Inspection Procedures

• In accordance with AASHTO Manual for Bridge Evaluation (incorp. § 650.317) 

• MBE Section 5 – Material Testing– Related to NDE testing

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NBIS (23 CFR 650C)

§ 650.305 Definitions

• In‐depth inspection

• Hands‐on inspection

• Fracture critical member

• Fracture critical member inspection

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Hands‐on Inspection

• Inspection within arm’s length of the component using visual techniques that may be supplemented by nondestructive testing.

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AASHTO Manual for Bridge Evaluation (MBE)

• Second edition published in 2011

• Section 4 of the MBE covers FCM inspection requirements

• Section 5 of the MBE covers Material Testing and Nondestructive Testing

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NDE in support of the National Bridge Inspection Program

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NHI 130099 “Showcase” Course

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Bridge Inspection Nondestructive Evaluation Showcase (BINS)

Upon completion of the course, participants will be able to:

•Summarize and demonstrate the basic principles and general operations procedures for five handheld nondestructive testing (NDT) systems used for inspection of bridge components.

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NHI 130099 “Seminar” Course

• 10 Modules– 30 Lessons

• 31 NDE methods

– Overview of systems and applications w/videos 

– 2 case study exercises (steel and concrete)

NHI Pilot Presentation

May 15‐16, 2013

Arlington, VA

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NHI 130099 BINS Seminar Outcomes

• Module 2.0—Summarize the National Bridge Inspection Program (NBIP) expectations as they relate to NDE

• Module 3.0—Compare the various stress wave NDE methods as used in steel bridge inspection

• Module 4.0—Demonstrate understanding of stress wave and electromagnetic methods by choosing applicable NDE methods for specific defects from the Sherman Minton Bridge case study

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NHI 130099 Outcomes

• Module 5.0—Restate the theories, applications, advantages and limitations of various NDE testing methods and answer questions related to bridge program history

• Module 6.0—Compare the theories and applications of various acoustic wave testing methods for concrete/timber inspections

• Module 7.0—Compare the theories and applications of various electromagnetic testing methods for concrete/timber inspections

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NHI 130099 Outcomes

• Module 8.0—Differentiate between thermal, electrical, chemical, and physical NDE methods in bridge inspection programs

• Module 9.0—Examine various specialized NDE inspection methods used in bridge inspection

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Course AgendaTime Day 1—Agenda Item

8:00‐8:15 1.0 Welcome/Intro

8:15‐8:45 2.1 National  Bridge Inspection Program Overview

8:45‐9:15 2.2 NDE Overview

9:15‐9:45 2.3 Introduction to Sherman Minton Bridge Case

9:45‐10:00 Break

10:00‐11:00 3.1 Wave Theory

11:00‐11:45 3.2 Ultrasonic Testing Methods

11:45‐12:15 3.3 Acoustic Emission Testing Methods (AE)

12:15‐1:15 Lunch

1:15‐2:00 4.1 Magnetic Particle Testing Method (MT)

2:00‐2:45 4.2 Eddy Current Testing Method (EC)

2:45‐3:15 4.3 Sherman Minton Bridge NDE Investigation

3:15‐3:30 Break

3:30‐4:15 4.4 Radiographic Testing Methods (RT)

4:15‐4:45 4.5 Sherman Minton Bridge Closure

4:45‐5:15 5.1 Review and Wrap‐up

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Time Day 2—Agenda Item

8:00‐8:45 5.3 Introduction to USH 1 Bridge Case Study

8:45‐9:15 6.1 Pulse Velocity (UPV)/Pulse Echo

9:15‐9:30 Break

9:30‐10:00 6.2 Impact Echo (IE)

10:00‐10:45 6.3 Spectral Analysis of Surface Waves (SASW)

10:45‐11:30 7.1 Ground Penetrating Radar (GPR)

11:30‐12:30 Lunch

12:30‐12:50 7.2 Pachometers

12:50‐1:20 7.3 Magnetic Flux Leakage (MFL)

1:20‐1:50 7.4 USH 1 Bridge NDE Investigation

1:50‐2:00 Break

2:00‐2:45 8.1 Infrared Thermography (IR)

2:45‐3:30 8.2 Electrical Methods

3:30‐3:45 Break

3:45‐4:05 8.3 Chemical Methods

4:05‐4:35 8.4 Physical Methods

4:35‐5:05 9.1 Additional Specialized Methods

5:05‐5:15 Break

5:15‐5:45 9.2 USH 1 Case Study Data Validation

5:45‐6:00 10.1 Summary and Review

6:00‐6:45 10.2 Final Assessment

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Dye Penetrant (PT)

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Ultrasonic Testing (UT)Straight‐beam

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Ultrasonic Testing (UT)Angled‐beam

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Ultrasonic Testing (UT)Phased array

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Acoustic Emission (AE)

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Magnetic Particle Testing (MT)

Cracks in weld

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Eddy Current (EC)

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Radiographic Testing (RT)

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Pulse Velocity (UPV)

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Pulse Echo Transducer Array

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Impact Echo (IE)

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Spectral Analysis of Surface Waves (SASW)

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Ground Penetrating Radar (GPR)

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Pachometers

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Magnetic Flux Leakage (MFL)

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MFL Device

Sensor

Internal magnetic flux lines Flaw

Flux leakage

Tendon

Testing surface

N S

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Infrared Thermography (IR)

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Half Cell Testing

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-10

0

10

0 50 100 150 20

-0.5

-0.45

-0.4

-0.35

-0.3

-0.25

-0.2

-0.15

-0.1

-0.05

0

0.05

0.1

Volt CSE

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Galvanostatic Pulse

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Electrical Resistance Testing

Shigometer

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Chloride Ion Testing

.2 .4 .6 .8 1.0 1.2Inches

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Carbonation Testing

Newer crack Old crack Older crack

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Audible Methods

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Extent of delaminationExtent of delamination

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Rebound Hammer Testing

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Penetration Resistance Testing

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Laser Scanning

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Optical Holography

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Exploratory Efforts

Post Tension Duct and Tendon Exposure (DTE)

Post Tension Duct 

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Questions

Contact:

Matt Donahue, P.E.

[email protected]

Dan Stromberg, S.E., P.E.

[email protected]

Terry M. Browne, P.E.

[email protected]

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