Abstract
Soil structure, interaction (SSI) research at the Electric Power Research Institute (EPRI) is focused on validating modeling and computational procedures. A data base has been obtained with instrumented scale models of stiff structures founded both on unsaturated alluvial soils and on rock. Explosives were used to induce strong ground-motion for two experiments, one on rock and the other on alluvium. A third experiment, a one-fourth scale containment structure on saturated alluvium, relies on earthquakes as the energy source. Analysis of the explosion-induced SSI data shows a marked shift in the fundamental frequency of the soil-structure system to a lower frequency. The magnitude of the shift is a function of foundation conditions and level of excitation. Analytical simulation was found to require more sophisticated soil constitutive models and computer codes than are used in current practice. The current phase of the program concentrates on evaluating SSI models used in current design practice by comparing predicted with recorded data at points in the soil-structure system. (author)
Stepp, J C;
Tang, H T
[1]
- Seismic Center, Electric Power Research Institute, Palo Alto, CA (United States)
Citation Formats
Stepp, J C, and Tang, H T.
EPRI's on-site soil-structure interaction research and its application to design/analysis verification.
IAEA: N. p.,
1988.
Web.
Stepp, J C, & Tang, H T.
EPRI's on-site soil-structure interaction research and its application to design/analysis verification.
IAEA.
Stepp, J C, and Tang, H T.
1988.
"EPRI's on-site soil-structure interaction research and its application to design/analysis verification."
IAEA.
@misc{etde_20473423,
title = {EPRI's on-site soil-structure interaction research and its application to design/analysis verification}
author = {Stepp, J C, and Tang, H T}
abstractNote = {Soil structure, interaction (SSI) research at the Electric Power Research Institute (EPRI) is focused on validating modeling and computational procedures. A data base has been obtained with instrumented scale models of stiff structures founded both on unsaturated alluvial soils and on rock. Explosives were used to induce strong ground-motion for two experiments, one on rock and the other on alluvium. A third experiment, a one-fourth scale containment structure on saturated alluvium, relies on earthquakes as the energy source. Analysis of the explosion-induced SSI data shows a marked shift in the fundamental frequency of the soil-structure system to a lower frequency. The magnitude of the shift is a function of foundation conditions and level of excitation. Analytical simulation was found to require more sophisticated soil constitutive models and computer codes than are used in current practice. The current phase of the program concentrates on evaluating SSI models used in current design practice by comparing predicted with recorded data at points in the soil-structure system. (author)}
place = {IAEA}
year = {1988}
month = {Jul}
}
title = {EPRI's on-site soil-structure interaction research and its application to design/analysis verification}
author = {Stepp, J C, and Tang, H T}
abstractNote = {Soil structure, interaction (SSI) research at the Electric Power Research Institute (EPRI) is focused on validating modeling and computational procedures. A data base has been obtained with instrumented scale models of stiff structures founded both on unsaturated alluvial soils and on rock. Explosives were used to induce strong ground-motion for two experiments, one on rock and the other on alluvium. A third experiment, a one-fourth scale containment structure on saturated alluvium, relies on earthquakes as the energy source. Analysis of the explosion-induced SSI data shows a marked shift in the fundamental frequency of the soil-structure system to a lower frequency. The magnitude of the shift is a function of foundation conditions and level of excitation. Analytical simulation was found to require more sophisticated soil constitutive models and computer codes than are used in current practice. The current phase of the program concentrates on evaluating SSI models used in current design practice by comparing predicted with recorded data at points in the soil-structure system. (author)}
place = {IAEA}
year = {1988}
month = {Jul}
}