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Evaluation of the resistance of steel–concrete adhesive connection in reinforced concrete beams using guided wave propagation
Abstract
The development of the nondestructive diagnostic methods is of significant importance in the last decades. A special attention is paid to diagnostics of reinforced concrete structures, which are very popular in the civil engineering field. A possible use of the guided waves in the estimation of the resistance of steel–concrete adhesive connection is studied in the following paper. The relationships relating adhesive connection resistance and wave propagation characteristics (wave velocity and the time of flight) have been derived and experimentally verified during pull-out tests conducted on a number of reinforced concrete beams varying in the debonding area. The pull-out tests were also monitored ultrasonically. On the basis of the results in the form of the time-domain signals, the theoretical load-carrying capacities of the pulled-out bars have been calculated and compared with the exact experimentally determined values. The high agreement of the results obtained proved the correctness of the developed method. Moreover, the signals registered during pull-out tests allowed to observe the changes of the wave velocity induced by the deterioration of the adhesive connection.
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- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
-
Archives of Civil and Mechanical Engineering
no. 20,
pages 1 - 13,
ISSN: 1644-9665 - Language:
- English
- Publication year:
- 2020
- Bibliographic description:
- Zima B., Kędra R.: Evaluation of the resistance of steel–concrete adhesive connection in reinforced concrete beams using guided wave propagation// Archives of Civil and Mechanical Engineering -Vol. 20,iss. 1 (2020), s.1-13
- DOI:
- Digital Object Identifier (open in new tab) 10.1007/s43452-019-0008-6
- Verified by:
- Gdańsk University of Technology
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