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Technology
Assessment & Research (TA&R) Program
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Project
Number |
128 |
| Date of Summary |
March 31, 1991 |
| Subject |
Response of Piles to Earthquake
Ground Motions |
| Performing Activity |
University of Houston |
| Principal Investigator |
Dr. Michael O'Neill |
| Contracting Agency |
Minerals Management Service |
| Estimated Completion |
Complete |
| Description |
This was a Joint
Industry Project (JIP) consisting of the MMS and four industry participants. The objective
of this study was to develop engineering guidelines to verify the holding capacity of a
pile foundation for an offshore structure subject to a strong earthquake ground motions.
The project simulated the response of axially-loaded piles in a specially designed test
pit that allows actual data from recorded earthquakes to be used as forcing functions. The
concern is if the seismic motion produces loss of capacity of the pile foundation during
or after a period of strung-ground shaking. A series of controlled laboratory tests will
be conducted on model pile segments that are loaded with a static uplift bias and that are
simultaneously subject to seismic excitation through the soil. The ground acceleration
time histories will be from the SEMS unit in Project No. 68. |
| Progress |
Complete |
Reports |
AA (5 pages)
 |
O'Neill, M. W., and Vipulanandan,
C., Response of Tension Piles to Vertical Seismic Motion in Saturated Fine Sand, Progress
Report No. 1, University of Houston, Houston, Texas, February 10, 1989. |
| AB (166 pages)
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O'Neill, M. W., Vipulanandan, C.,
and Ocha, M., Response of Tension Piles to Vertical Seismic Motion in Saturated Fine Sand,
Final Report, Report No. UHCEE 89-14, University of Houston, Department of Civil and
Environmental Engineering, Houston, Texas, December 1989. |
| AC (309 pages)
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O'Neill, M. W., Vipulanandan, C.,
and Ocha, M., Response of Tension Piles to Simulated Seismic Motion in Saturated Fine
Sand, Final Report, Report No. UHCEE 90-09, University of Houston, Department of Civil and
Environmental Engineering, Houston, Texas, December 1990. |
| AD (1 page)
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O'Neill, M. W.,
Vipulanandan, C., and Ocha, M., Response of Tension Piles to Simulated Seismic Motion in
Saturated Fine Sand, Paper for the Transportation Research Record, University of Houston,
Department of Civil and Environmental Engineering, Houston, Texas, May 1991. |
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