Inspection of Structural Elements Using NDE
0
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
Mathematical basis of interpretation of data from nondestructive evaluation (NDE) methods in condition assessment of structures is presented. In structural inspection with NDE methods, NDE data are not directly used for the condition assessment. Instead, NDE data must be interpreted as condition of inspected element. Correct assessments of conditions depend on many factors such as the inaccuracy and the variability in NDE measurements and the uncertainty in correlation between attributes (what is measured) and conditions (what is sought in the inspection). A full description of the performance of NDE methods considers the relation of test data to conditions of elements. The quality of the test itself is important, but equally important is the interpretation that occurs after the test. The effects of variability in test data and uncertainty in correlations of attributes and conditions are presented in three examples of field testing methods.
Abstract
Mathematical basis of interpretation of data from nondestructive evaluation (NDE) methods in condition assessment of structures is presented. In structural inspection with NDE methods, NDE data are not directly used for the condition assessment. Instead, NDE data must be interpreted as condition of inspected element. Correct assessments of conditions depend on many factors such as the inaccuracy and the variability in NDE measurements and the uncertainty in correlation between attributes (what is measured) and conditions (what is sought in the inspection). A full description of the performance of NDE methods considers the relation of test data to conditions of elements. The quality of the test itself is important, but equally important is the interpretation that occurs after the test. The effects of variability in test data and uncertainty in correlations of attributes and conditions are presented in three examples of field testing methods.
참고문헌 (7)
- "Recording and coding guide for the structure inventory and appraisal of the nation's bridges", pp.77~ (1988), FHWA
- Condition evaluation of concrete bridge relative to reinforcement corrosion Vol. 6; Method for field determination of total chloride content, "Herald,S.E.", 166~, pp.SHRP (1992), S[DOI]
- "Standard specifications for transportation materials and methods of sampling and testing", 999~ (1993)
- Hearn,G., "Damage assessment in bridge decks using half-cell potential measurements. in: Nondestructive Evaluation of Civil Structures and Materials", pp.295~306 (1996), Boulder, CO
- "Annual book of ASTM Standards. (1992). ASTM C 876, Philadelphia, PA", ~ (1992)
- Protection system for new prestressed and substructure concrete, "Pfeifer,D.W.", Wiss, Janney, Elstner Associates, Inc., 133~, pp.FHWA (1987), RD-86[DOI]
- Funahashi, M., "Predicting corrosion-free service life of a concrete structure in chloride environment", AC1 Material Journal, 87(6), pp.581~587 (1990)