preliminary vibration analysis of transverse pier loading filepreliminary vibration analysis of...
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![Page 1: Preliminary Vibration Analysis of Transverse Pier Loading filePreliminary Vibration Analysis of Transverse Pier Loading John DeVitis, PhD 08032017](https://reader031.vdocument.in/reader031/viewer/2022031517/5d09d60888c9934d698b5ae4/html5/thumbnails/1.jpg)
Preliminary Vibration Analysis of Transverse Pier LoadingJohn DeVitis, PhD
08032017
![Page 2: Preliminary Vibration Analysis of Transverse Pier Loading filePreliminary Vibration Analysis of Transverse Pier Loading John DeVitis, PhD 08032017](https://reader031.vdocument.in/reader031/viewer/2022031517/5d09d60888c9934d698b5ae4/html5/thumbnails/2.jpg)
Pier Instrumentation
Triaxle Acceleration
Triaxle Velocity
![Page 3: Preliminary Vibration Analysis of Transverse Pier Loading filePreliminary Vibration Analysis of Transverse Pier Loading John DeVitis, PhD 08032017](https://reader031.vdocument.in/reader031/viewer/2022031517/5d09d60888c9934d698b5ae4/html5/thumbnails/3.jpg)
Transverse Input Spectrum
![Page 4: Preliminary Vibration Analysis of Transverse Pier Loading filePreliminary Vibration Analysis of Transverse Pier Loading John DeVitis, PhD 08032017](https://reader031.vdocument.in/reader031/viewer/2022031517/5d09d60888c9934d698b5ae4/html5/thumbnails/4.jpg)
Acceleration Time Histories
![Page 5: Preliminary Vibration Analysis of Transverse Pier Loading filePreliminary Vibration Analysis of Transverse Pier Loading John DeVitis, PhD 08032017](https://reader031.vdocument.in/reader031/viewer/2022031517/5d09d60888c9934d698b5ae4/html5/thumbnails/5.jpg)
Transverse Response Spectrum
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Transverse Response Spectrum
Load Level Frequency 1 [Hz] Frequency 2 [Hz]
1V 4.443 4.712
2V 4.419 4.639
3V 4.37 4.614
4V 4.37 4.614
![Page 7: Preliminary Vibration Analysis of Transverse Pier Loading filePreliminary Vibration Analysis of Transverse Pier Loading John DeVitis, PhD 08032017](https://reader031.vdocument.in/reader031/viewer/2022031517/5d09d60888c9934d698b5ae4/html5/thumbnails/7.jpg)
Vertical Response Spectrum
First Bending
First Torsion
Torsion due to rocking?
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To Do
• Record averaging
• Transfer function
• The records shown are the response due to the spectral input. Developing the transfer function will normalize the output records due to each input
• Superstructure modal analysis
• Isolate super structure modes to ensure the observed response is largely rocking of pier