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Piezoelectric ceramic (PZT) transducers, which can be surface-mounted on or embedded in structures, are widely used for structural health monitoring. Since they are only sensitive to cracks nearby, the use of ones pasted on structures' surfaces may not be able to detect accurately the deep damages especially in large size structures. Therefore, the embedded PZT transducers display more advantages...
In order to solve the problem about structure health monitoring system construction of rigid frame-continuous beam bridge, taking Jin Shui Gou Bridge as the study object, the health monitoring system of rigid frame-continuous beam bridge was studied, and the selection basis of project for health monitoring system was proposed in this paper. The health monitoring system of Jin Shui Gou Bridge was analyzed,...
There are heavy studies recently on applying wireless sensor networks for structural health monitoring. These works usually focus on the computer science aspect, and the considerations include energy consumption, network connectivity, etc. It is commonly believed that for the current resource limited wireless sensors, system design could be more efficient if the application requirements are incorporated...
The West-Tower in Zhujiang New Town of Guangzhou covers an area of 451,926 square meters. The main turret has about 103 stories and 432 meters high, it will become the highest building and a new landmark building in Guangzhou upon to now. Guangzhou West-Tower is also one of the highest constructing complicated structures in China. Considered the complexity of this structure, to secure the safety of...
The near-field sub-band beamforming method for damage detection is a technique that addresses some inherent problem in current and past methods for damage detection in civil structures. It has been shown that the above mentioned algorithm is able to provide an approximate space/frequency localization of a damaged region in a simulated structure. This is accomplished by subband energy comparison among...
This paper presents a structural health monitoring system for monitoring, with reduced visual impact, one historical building structure. The system is based on fiber Bragg gratings and comprises 19 displacement sensors and 5 temperature sensors. All the sensors were custom made according to the monitoring points' characteristics. The results obtained over the first year of monitoring are presented...
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