30 March 2009 Crack monitoring for reinforced concrete columns based on piezoceramic transducers
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Abstract
The technique of structure health monitoring (SHM) has become a reaching hotspot in civil engineering field at present. The successful application of smart materials in this field has greatly promoted the development of the SHM. Among the smart materials, the piezoelectric material has been paid much attention for its good characteristic and low price. The well competitive properties have had a wide application prospect in SHM field. In this paper, the crack monitoring technique for concrete columns using piezoceramic transducers was experimentally developed. In the experiment, the piezoceramic transducers were embedded into two concrete columns under the large and small eccentric compression loads, respectively. The acoustic emission was used for the identification of the crack generation and development. For the detection of the crack level, a wave-based method for the damaged columns was used and the damage level was determined by compare of the health and damage signals. The experimental results show that acoustic emission based on piezoceramic transducers can be used in the crack monitoring of reinforced concrete structure.
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Shi Yan, Wei Sun, Yanyu Meng, Peng Ni, Zhi Liu, "Crack monitoring for reinforced concrete columns based on piezoceramic transducers", Proc. SPIE 7292, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2009, 729226 (30 March 2009); doi: 10.1117/12.815759; https://doi.org/10.1117/12.815759
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