Discrimination of Acoustic Emission Signals for Damage Assessment in a Reinforced Concrete Slab Subjected to Seismic Simulations

• Autorzy: Sagasta F. A. , Torné J. L. , Sánchez-Parejo A. , Gallego A.
• Języki publikacji: EN

Abstrakty

EN

The purpose of this work is to distinguish between Acoustic Emission (AE) signals coming from mechanical friction and AE signals coming from concrete cracking, recorded during fourteen seismic simulations conducted with the shaking table of the University of Granada on a reinforced concrete slab supported on four steel columns. To this end, a particular criterion is established based on the Root Mean Square of the AE waveforms calculated in two different temporal windows. This criterion includes a parameter calculated by optimizing the correlation between the mechanical energy dissipated by the specimen (calculated by means of measurements with accelerometers and displacement transducers) and the energy obtained from the AE signals recorded by low-frequency piezoelectric sensors located on the specimen. The final goal of this project, initiated four years ago, is to provide a reliable evaluation of the level of damage of Reinforced Concrete specimens by means of AE signals to be used in future Structural Health Monitoring strategies involving RC structures.

Słowa kluczowe

EN

acoustic emission; structural health monitoring; reinforced concrete structures; signal processing

• Wydawca: Instytut Podstawowych Problemów Techniki PAN ; Polska Akademia Nauk
• Czasopismo: Archives of Acoustics
• Rocznik: 2013
• Tom: Vol. 38, No. 3
• Strony: 303--310
• Opis fizyczny: Bibliogr. 13 poz., rys., tab., wykr.

Twórcy

autor

Sagasta F. A.

• Department of Applied Physics, Building Engineering School, University of Granada

autor

Torné J. L.

• Department of Applied Physics, Building Engineering School, University of Granada

autor

Sánchez-Parejo A.

• Department of Applied Physics, Building Engineering School, University of Granada

autor

Gallego A.

• Department of Applied Physics, Building Engineering School, University of Granada

Bibliografia

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• 2. Benavent-Climent A., Castro E., Gallego A. (2010), Evaluation of low cycle fatigue damage in RCexterior beam-column subassemblages by acoustic emission, Construction and Building Materials, 24, 1830-1842.
• 3. Benavent-Climent A., Gallego A., Vico J.M. (2011), An acoustic emission energy index for damage valuation of reinforced concrete slabs under seismic loads, Structural Health Monitoring, 11, 1, 69-81.
• 4. Carpinteri A., Lacidogna G., Pugno N. (2007), Structural damage diagnosis and life-time assessment by acoustic emission monitoring, Engineering Fracture Mechanics, 74, 1-2, 273-289.
• 5. Gallego A., Benavent-Climent A., Cristobal I. (2011), Health monitoring of reinforced concrete slabs subjected to earthquake-type dynamic loading via measurement and analysis of acoustic emission signals, Smart Structures and Systems, 8, 4, 385-398.
• 6. Guzik J., Wojtyniak M., Olszowski S., Marczak M., Ranachowski Z. (2006), Investigation of acoustic emission signal generated in the friction pair lubricated with oils containing various lubricity additives, Engineering Transactions, 54, 2, 159-166.
• 7. Jasieński Z., Pawelek A., Piatkowski A., Ranachowski Z. (2009), Twinning and shear band formation in channel-die compressed silver single crystals identified by Acoustic Emission method, Archives of Metallurgy and Materials, 54, 1, 29-33.
• 8. Ministry of Construction of Spain (2002), Spanish Seismic Code NCSE-02, Madrid.
• 9. Ministry of Construction of Spain (2008), Spanish Concrete Code EHE-08, Madrid.
• 10. Ranachowski Z., Joźwiak-Niedźwiecka D., Brandt A.M., Dębowski T. (2012), Application of the acoustic emission technique to determine critical stress in fiber reinforced mortar beams, Archives of Acoustics, 37, 3, 261-268.
• 11. Wozniak T.Z., Ranachowski Z. (2006), Acoustic Emission during austenite decomposition into lower bainite with midrib, Archives of Acoustics, 31, 3, 319-334.
• 12. Yuyama S., Li ZW., Ito Y., Arazoe M. (1999), Quantitative analysis of fracture process in RC column foundation by moment tensor analysis of acoustic emission, Construction and Building Materials, 13, 1-2, 87-97.
• 13. Yuyama S., Li ZW., Yoshizawa M., Tomokiyo T., Uomoto T. (2001), Evaluation of fatigue damage in reinforced concrete slab by acoustic emission, NDT&E International, 34, 6, 381-387.