A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Seismic Soil-Pile-Structure Interaction: Analytical Models
Seismic soil-pile-structure interaction (SSPSI) is a complex process involving several, simultaneously occurring and, sometimes compensating phenomena. The physical processes that occur when a pile supported structure undergoes earthquake loading consist of pore-pressure generation, ground deformation and subsequent cyclic degradation, strain rate effects and gap-slap mechanism. Modeling these physical phenomena numerically is a challenge. Of the various approaches available in practice, the p-y method for evaluating lateral pile response is by far the most common. However, at present, a consensus has not been established among practitioners on the appropriateness of using p-y curves for post-liquefaction analyses. This paper presents a discussion of available models and modifications to p-y relationships used to model soil response under seismic conditions. Predictions made with these models are then compared with actual load test data performed by others. It is concluded that further research is needed to quantify and predict gap formation, the stress-strain behavior of liquefied soils and to accurately evaluate non-linear bending resistance of steel encased concrete sections.
Seismic Soil-Pile-Structure Interaction: Analytical Models
Seismic soil-pile-structure interaction (SSPSI) is a complex process involving several, simultaneously occurring and, sometimes compensating phenomena. The physical processes that occur when a pile supported structure undergoes earthquake loading consist of pore-pressure generation, ground deformation and subsequent cyclic degradation, strain rate effects and gap-slap mechanism. Modeling these physical phenomena numerically is a challenge. Of the various approaches available in practice, the p-y method for evaluating lateral pile response is by far the most common. However, at present, a consensus has not been established among practitioners on the appropriateness of using p-y curves for post-liquefaction analyses. This paper presents a discussion of available models and modifications to p-y relationships used to model soil response under seismic conditions. Predictions made with these models are then compared with actual load test data performed by others. It is concluded that further research is needed to quantify and predict gap formation, the stress-strain behavior of liquefied soils and to accurately evaluate non-linear bending resistance of steel encased concrete sections.
Seismic Soil-Pile-Structure Interaction: Analytical Models
Malhotra, Sanjeev (author)
GeoFlorida 2010 ; 2010 ; Orlando, Florida, United States
GeoFlorida 2010 ; 3039-3051
2010-02-15
Conference paper
Electronic Resource
English
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