Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Evaluating Footing Response from Seismic Piezocone Tests
Since soil modulus is highly nonlinear from the small-strain to intermediate- and large-strain regions, the initial tangent shear modulus (Gmax) provides a fundamental reference value for maximum stiffness. The seismic piezocone test (SCPTU) is appropriate for obtaining soil parameters both at the small and high strain ranges. A nonlinear modulus reduction subroutine is embedded in the two-dimensional finite difference program FLAC to simulate soil stress-strain nonlinearity. The model is based on a logarithmic function that requires only three parameters to describe the nonlinear soil response: shear strength (τmax), initial shear modulus (Gmax), and strain at failure (γf). A numerical parametric study was performed and a closed-form solution for representing the load-displacement response of footings was developed that was calibrated with full-scale footing load tests.
Evaluating Footing Response from Seismic Piezocone Tests
Since soil modulus is highly nonlinear from the small-strain to intermediate- and large-strain regions, the initial tangent shear modulus (Gmax) provides a fundamental reference value for maximum stiffness. The seismic piezocone test (SCPTU) is appropriate for obtaining soil parameters both at the small and high strain ranges. A nonlinear modulus reduction subroutine is embedded in the two-dimensional finite difference program FLAC to simulate soil stress-strain nonlinearity. The model is based on a logarithmic function that requires only three parameters to describe the nonlinear soil response: shear strength (τmax), initial shear modulus (Gmax), and strain at failure (γf). A numerical parametric study was performed and a closed-form solution for representing the load-displacement response of footings was developed that was calibrated with full-scale footing load tests.
Evaluating Footing Response from Seismic Piezocone Tests
Elhakim, A. F. (Autor:in) / Mayne, P. W. (Autor:in)
GeoShanghai International Conference 2006 ; 2006 ; Shanghai, China
Site and Geomaterial Characterization ; 255-260
15.05.2006
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
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