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- W2892281324 abstract "Introduction: Steel-concrete composite structures are playing an increasingly important role in economic construction because of a series of advantages of great stiffness, good seismic performance, steel material saving, cost efficiency, convenient construction, etc. However, in service process, due to the long-term effects of environmental impacts and dynamic loading, interfaces of a composite structure might generate debonding cracks, relative slips or separations, and so on, lowering the composite effect of the composite structure. Methods: In this paper, the piezoceramics (PZT) are used as transducers to perform experiments on interface debonding slips and separations of composite beams, respectively, aimed at proposing an interface damage identification model and a relevant damage detection innovation method based on PZT wave technology. Results: One part of various PZT patches was embedded in concrete as “smart aggregates,” and another part of the PZT patches was pasted on the surface of the steel beam flange, forming a sensor array. Conclusions: A push-out test for four specimens was carried out and experimental results showed that, under the action of the external loading, the received signal amplitudes will increasingly decrease with increase of debonding slips along the interface. The proposed signal energy-based interface damage detection algorithm is highly efficient in surface state evaluations of composite beams." @default.
- W2892281324 created "2018-09-27" @default.
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- W2892281324 date "2018-01-01" @default.
- W2892281324 modified "2023-09-26" @default.
- W2892281324 title "Interfacial damage identification of steel and concrete composite beams based on piezoceramic wave method" @default.
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- W2892281324 doi "https://doi.org/10.1177/2280800017753051" @default.
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