All Outputs (4)

Use of mode shape ratios for pier scour monitoring in two-span integral bridges under changing environmental conditions (2019)
Journal Article
Malekjafarian, A., Prendergast, L., & OBrien, E. J. (2020). Use of mode shape ratios for pier scour monitoring in two-span integral bridges under changing environmental conditions. Canadian Journal of Civil Engineering, 47(8), 962-973. https://doi.org/10.1139/cjce-2018-0800

In this paper, a novel pier scour indicator is introduced, which uses the ratio between mode shape amplitudes identified at two points on an integral bridge structure to monitor the progression of scour erosion. The Mode Shape Ratio (MSR) is investig... Read More about Use of mode shape ratios for pier scour monitoring in two-span integral bridges under changing environmental conditions.

Scour damage detection and structural health monitoring of a laboratory-scaled bridge using a vibration energy harvesting device (2019)
Journal Article
Fitzgerald, P., Malekjafarian, A., Bhowmik, B., Prendergast, L., Cahill, P., Kim, C., …Obrien, E. (2019). Scour damage detection and structural health monitoring of a laboratory-scaled bridge using a vibration energy harvesting device. Sensors, 19(11), 21. https://doi.org/10.3390/s19112572

A vibration-based bridge scour detection procedure using a cantilever-based piezoelectric energy harvesting device (EHD) is proposed here. This has an advantage over an accelerometer-based method in that potentially, the requirement for a power sourc... Read More about Scour damage detection and structural health monitoring of a laboratory-scaled bridge using a vibration energy harvesting device.

Experimental application of FRF-based model updating approach to estimate soil mass and stiffness mobilised under pile impact tests (2019)
Journal Article
Prendergast, L., Wu, W., & Gavin, K. (2019). Experimental application of FRF-based model updating approach to estimate soil mass and stiffness mobilised under pile impact tests. Soil Dynamics and Earthquake Engineering, 123, 1-15. https://doi.org/10.1016/j.soildyn.2019.04.027

The dynamic response of structures in contact with soil is receiving increasing interest and there is a growing need for more accurate models capable of simulating the behaviour of these systems. This is particularly important in the field of offshor... Read More about Experimental application of FRF-based model updating approach to estimate soil mass and stiffness mobilised under pile impact tests.

Drive-by scour monitoring of railway bridges using a wavelet-based approach (2019)
Journal Article
Fitzgerald, P. C., Malekjafarian, A., Cantero, D., OBrien, E. J., & Prendergast, L. J. (2019). Drive-by scour monitoring of railway bridges using a wavelet-based approach. Engineering Structures, 191, 1-11. https://doi.org/10.1016/j.engstruct.2019.04.046

This paper numerically investigates the feasibility of using bogie acceleration measurements from a passing train to detect the presence of bridge scour. The Continuous Wavelet Transform is used to process the simulated acceleration measurements for... Read More about Drive-by scour monitoring of railway bridges using a wavelet-based approach.