PSI - Issue 54

Mohammad Shamim Miah et al. / Procedia Structural Integrity 54 (2024) 3–10 Author name / Structural Integrity Procedia 00 (2023) 000–000

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Fig. 1. Test setup and sample results at different sensors locations.

resonant frequency. The acceleration data recorded with a sampling frequency of 4800Hz and measurement has been done continuously for different durations. For instance, in Fig. 1, a signal recorded for 10 minutes is presented. After applying each abrupt dynamic type load a pause time has been given to the bridge to comeback in its original position. 3. Results and discussion It is mentioned earlier that the acceleration data has been measured at different locations by applying abrupt impulsive type dynamic loads. The data has been recorded continuously for different durations. As for example, herein, a sample measured data set of 10 minutes have been presented in Fig. 2. Also two peaks at different measured time window have been shown in the zoomed figure for better visualization purpose (see the sub-figures Fig. 2). And the label for sensors locations are given as Location-01 to 04, and the colour coding remain same for the whole paper unless otherwise mentioned. In order to evaluate and understand the effect of different input excitations and the sensors locations, different peaks from the measured full-time history data have been selected. As a representative, total 10 peaks from the Fig. 2 have been selected, for better understanding, see the x-axis of Fig. 3. In the early mentioned figure the each sub-figure represents an individual peak of measured data containing four signals