SHM Based on Modal Analysis: Accelerometer and Piezoelectric Transducers Instrumentation for Civil Engineering in Heterogeneous Structures

Andrés Belisario-Briceño 1 Sabeha Fettouma Zedek 1 Thierry Camps 1 Raoul François 2 Christophe Escriba 1 Jean-Yves Fourniols 1
1 LAAS-N2IS - Équipe Nano Ingénierie et Intégration des Systèmes
LAAS - Laboratoire d'analyse et d'architecture des systèmes [Toulouse]
2 INSA Toulouse - Institut National des Sciences Appliquées - Toulouse
Abstract : This paper presents a strategy for the detection of mechanical damage of a reinforced concrete beam strengthened by Carbon Fiber Reinforced Polymers (CFRP) sheets (TFC ©) based on the joint use of piezoelectric sensors and conventional accelerometers. The beam is subjected to repeat impacts that may represent the action of vehicles on a roadway joint of a bridge, at different levels of damage induce by bending of the reinforced concrete beam. The results show that piezoelectric sensors provide a much wide response those accelerometers allowing a study in the high frequency range (above 2 kHz). The spectral response appears largely affected by mechanical damage on the beam and suggests a possible use for SHM in Civil Engineering structures.
Keywords : Monitoring Modal analysis Civil engineering SHM applications
Type de document :
Communication dans un congrès
Le Cam, Vincent and Mevel, Laurent and Schoefs, Franck. EWSHM - 7th European Workshop on Structural Health Monitoring, Jul 2014, Nantes, France. 2014
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Andrés Belisario-Briceño, Sabeha Fettouma Zedek, Thierry Camps, Raoul François, Christophe Escriba, et al.. SHM Based on Modal Analysis: Accelerometer and Piezoelectric Transducers Instrumentation for Civil Engineering in Heterogeneous Structures. Le Cam, Vincent and Mevel, Laurent and Schoefs, Franck. EWSHM - 7th European Workshop on Structural Health Monitoring, Jul 2014, Nantes, France. 2014. 〈hal-01021063〉

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