Dynamic characterization of shallow foundations with full-scale tests |
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| Aldo Madaschi, Alessandro Gajo, Marco Molinari, Daniele Zonta |
- Abstract:
- This work provides a detailed description of the full-scale experimental tests performed on the dynamic behavior of a shallow foundation under intermediate strains. A wind tower supported by the foundation was submitted to a snap-off test inducing free oscillations of non-negligible amplitude in the whole system. The motion induced was measured with a digital camera, seismometers and accelerometers attached to the surrounding ground surface and to the wind tower. An innovative interpretation technique based on optimizing a few meaningful parameters obtained from the recorded time histories was necessitated by the heterogeneity of the data collected and the accuracy needed to deduce the behavior of the foundation plinth. The analyses showed that the rotational stiffness of the foundation plinth was roughly 10 times greater than that of the base joint, which in turn was about 1 order of magnitude greater than that of the wind tower.
- Keywords:
- Foundation Vibration, Experimental Measurements, Small-Strain Behavior, Dynamic Measurements
- Download:
- IMEKO-TC4-GEO-2016-37.pdf
- DOI:
- -
- Event details
- IMEKO TC:
- TC4
- Event name:
- TC4 International Workshop on Metrology for Geotechnics 2016
- Title:
1st IMEKO TC4 International Workshop on Metrology for Geotechnics
- Place:
- Benevento, ITALY
- Time:
- 17 March 2016 - 18 March 2016