| Summary: | 碩士 === 國立交通大學 === 土木工程系所 === 104 === Severe loading, such as a strong earthquake, may cause damage to structures. Assessing the health status of a structure from its vibration responses is an important issue in civil engineering.
This research developed a structural vibration data acquisition and analysis system, which can monitor the health status of a structure under an earthquake. Its user interface is developed using Java programming language. Consider the integrity of transmitted data and the need of electric power for sensors, data are transmitted by a wired network, and power is supplied through a POE system. The data analyses are performed using FFT, frequency response function approach, and a modal identification approach based on ARX model. Users can only apply the proposed system to complete data collection and analyses. The feasibility of this system is verified through shaking table tests at NCREE.
|
|---|
