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Response, analysis, and design of pile groups subjected to static & dynamic lateral loads.
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2003-06-01
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[PDF-6.09 MB]
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Alternative Title:Response, analysis and design of pile groups subjected to static and dynamic lateral loads.
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Abstract:Static and dynamic lateral load tests were performed on four full-scale pile groups driven at four different spacings. P-multipliers to account for group
interaction effects were back-calculated for each test. P-multipliers were found to be a function of row position within the group but were independent of
position within a row. Curves were developed to define p-mulipliers as a function of pile spacing. Using these p-multipliers along with soil properties
obtained from site characterization work, excellent agreement between measured and computed response could be obtained. Dynamic load tests were
performed using the Statnamic load system. Dynamic lateral resistance was consistently higher than the measured static resistance, however, resistance
was dynamic resistance was greater for the virgin load than for reloading. Simple one degree-of-freedom models were successfully used to interpret the
static load-deflection curve from the dynamic load-deflection curves. These analyses indicate that the increased dynamic lateral resistance was largely
due to damping.
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