Performance of pile supported sign structures : [brief].

Performance of pile supported sign structures : [brief].

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    Sign structures in Wisconsin are typically supported by drilled shaft foundations or spread footing foundations. However, when the soil conditions are not suitable to be supported on drilled shafts or spread footings, a group of piles could support the foundation. Large sign structures are subject to large lateral wind loads, which result in large lateral forces and overturning moments. These lateral forces and overturning moments produce both uplift loads and downward loads on the pile foundation. However, published methods for designing driven pile groups only address groups subjected either to compression or uplift, not both simultaneously. This research project investigated the behavior of the group of piles under both compression and uplift loads.
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