PSI - Issue 48

G. Gusev et al. / Procedia Structural Integrity 48 (2023) 176–182 Author name / Structural Integrity Procedia 00 (2019) 000 – 000

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Conclusion Within the framework of the theory of electro-elasticity, the problem of interaction of a piezoelectric device with a reinforced concrete structure was solved. The results of solving this problem made it possible to establish the rational geometric and electro-elastic properties of the piezoelectric actuator elements that provide the necessary mode of the diagnostic signal. The solution of a sequence of boundary value problems of the dynamic deformation response of a model four-story structure made of reinforced concrete to the dynamic action of a diagnostic signal has been obtained. The solutions have been obtained in the framework of the theory of elasticity. In the process of numerical experiment, a diagnostic signal was applied sequentially to various elements of the structure. The aggregate of the obtained solutions determined the vibration portrait of the model reinforced concrete structure. A similar sequence of solutions was obtained for the model structure containing a defect in the form of a crack in the floor slab. It should be noted that the location and geometric parameters of the crack were determined from the solution of the elastic-plastic problem. At the same time, at successive stages of crack development, an elastic problem was solved for the dynamic response of the model structure to a diagnostic signal, and vibration portraits of the structure were obtained for each stage. The results of comparing the sequence of vibro-portraits obtained made it possible to draw a conclusion about the possibility of effective use of a piezoelectric actuator as a diagnostic element in an active deformation monitoring system. The comparison of such vibro-portraits is the basis for diagnosing the location of cracks in the body of a reinforced concrete structure and their development. Acknowledgements The study was supported by the Russian Science Foundation Grant No. 22-19-00108, https://rscf.ru/project/22-19 00108. References Glot, I. O., Gusev, G. N., Shardakov, I. N. [et al.], 2021. Vibration-based monitoring of engineering metal structures during technological operations: Procedia Structural Integrity 32, 216-223. DOI 10.1016/j.prostr.2021.09.031. Costa, B.J.A., Figueiras, J.A., 2012. Fiber Optic Based Monitoring System Applied to a Centenary Metallic Arch Bridge: Design and Installation. Engineering Structures 44, 271 – 280. http://dx.doi.org/10.1016/j.engstruct.2012.06.005 Jia, D., Zhang, W., Wang, Y., Liu,Y., 2021. A New Approach for Cylindrical Steel Structure Deformation Monitoring by Dense Point Clouds. Remote Sensors, 13(12), 2263. https://doi.org/10.3390/rs13122263 Yang Y., Xu W., Gao Z., Yu Z., Zhang Y., 2023. Research Progress of SHM System for Super High-Rise Buildings Based on Wireless Sensor Network and Cloud Platform. Remote Sensors, 15(6), 1473. https://doi.org/10.3390/rs15061473 Wang, L.; Liu, C.; Zhu, X.; Xu, Z.; Zhu, W.; Zhao, L., 2021 Active Vibration-Based Condition Monitoring of a Transmission Line. Actuators, 10, 309. doi.org/10.3390/act10120309 Aabid, A., Parveez, B., Raheman, M.A.; Ibrahim, Y.E.; Anjum, A.; Hrairi, M.; Parveen, N.; Mohammed Zayan, J., 2021 A Review of Piezoelectric Material-Based Structural Control and Health Monitoring Techniques for Engineering Structures: Challenges and Opportunities. Actuators, 10, 101. https://doi.org/10.3390/ act10050101 Neto, R. M. F., Steffen, V., Rade, D. A. and Gallo, C. A., 2011. System for Structural Health Monitoring based on piezoelectric sensors/actuators. XI Brazilian Power Electronics Conference, 365-371. doi: 10.1109/COBEP.2011.6085180 Shardakov, I. Glot, A. Shestakov [et al.], 2020. Analysis of quasistatic deformation of reinforced concrete structure on the basis of acoustic emission on the results of vibration diagnostics and acoustic emission. Procedia Structural Integrity, 1, 1407-1415. DOI 10.1016/j.prostr.2020.10.113. Willam K.J., Warnke E.P., 1975. Constitutive Model for the Triaxial Behavior of Concrete. Proceedings of the International Assoc. for Bridge and Structural Engineering, 19, 1 – 30.