Applying Strain-Sensing Technology for Monitoring and Diagnosing Peel-Based Deterioration of Tiled Exterior Walls
Journal Title: International Journal of Civil, Structural, Environmental and Infrastructure Engineering Research and Development (IJCSEIERD) - Year 2017, Vol 7, Issue 4
Abstract
Various levels of deterioration can occur in buildings, because of aging or improper management. In recent years, the deterioration of tiled exterior walls of the buildings in Taiwan has become increasingly severe. This phenomenon not only reduces the aesthetic value of the city, but also threatens the life and property of the residents. However, current diagnosing techniques, including visual examination, tap tone diagnostics, and infra red thermography, for tile deterioration of the exterior walls require inspecting personnel to perform the tests with instruments. Exterior wall tile deterioration cannot be diagnosed objectively and scientifically, in real time. Therefore, this study proposed an innovative application of strain gauges for a real-time self-diagnosing of exterior wall tiles. This technique can serve as a smart inspection technological option for building administrators. The experiment performed in this study comprised two phases. Phase 1, determined the voiceprint eigenvalue of the tiles on the exterior walls with varying levels of deterioration, and Phase 2 applied the strain sensing technology using strain gauges for monitoring the peel-based deterioration of the exterior wall tiles. Results of the sound diagnostics experiment in Phase 1 were converted and compared with corresponding strain variations of the tiled walls with varying deterioration levels. The diagram of deterioration symptoms of square tiles was further analyzed using the pathogenesis theory of quasi pathology. Results of this study can be used to provide real-time, consecutive, and scientific long-term monitoring. The research results provide a reference for developing future smart cities and for the Internet of Things; furthermore, this study also plotted a diagram of the deterioration symptoms, which can serve as a scientific basis of determination concerning diagnoses of exterior wall tile deterioration.
Authors and Affiliations
Chih-Yuan Chang, Yung-Chiu Yi, San-Shan Hung, Yun-Siou Lee, Yu-Cheng Chang
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