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Helical piles are being used in seismic regions of the U.S.
and other countries, yet there remains much confusion regarding the state of
practice and building codes for this pile type. Nonetheless, it is anticipated
that piles with comparatively small cross-sections and high anchoring capacity,
such as helical piles, could be beneficial for seismic resistance due to their
slenderness, higher damping ratios, ductility, and resistance to tip uplift. In
addition, helical piles can be easily implemented as a retrofitting solution
for foundations that are found to be deficient according to updated seismic
codes. Existing seismic testing results, including results from the premier
seismic testing research program on helical piles in sand on the University of
California- San Diego outdoor shake table, and current design standards are
analyzed to make recommendations about how to fill the knowledge gaps and
provide quantitative data on the behavior of helical piles under seismic
- Course will award 1.5 hours of continuing education
- Diamond Review approved in all 50 states
- This webinar will not be available as a recording