Damage Detection of Cable-stayed Bridge Using Combined Gps and Accelerometer Observations
نویسندگان
چکیده
The universe of damage detection scenarios likely to be encountered in realistic civil infrastructure applications is very broad and encompassing. Among the numerous considerations that influence the choice and effectiveness of a suitable method is studying the damage detection in both time and frequency domains. Nowadays, the use of a real time kinematic-global positioning system (RTK-GPS) and accelerometers sensors are capable of detecting the damage of long bridges. However, this study aims to use the integrated GPS/accelerometer observations to detect the damage effect of the cable-stayed Yonghe Bridge. 3-D finite element model (FEM) of the cable-stayed bridge was established to support the proposed bridge tower movement analysis. The results of the integrated GPS-accelerometer observations show very significant results for the damage detection using GPS observations in the time domain, while the accelerometer observations are more effective in damage detection in the frequency domain analysis. In addition, the traffic loads are the main effective load on the bridge behavior and safety.
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تاریخ انتشار 2013