Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Shear Modulus and Damping Ratio Model for Cement Treated Clay
A hyperbolic model-based normalized shear modulus reduction (G/Gmax) formulation for cement treated clay is presented. This three-parameter normalized shear modulus reduction model can be constructed using maximum shear modulus and isotropic compression experiments. The model assumes that cemented clay follows the failure pattern of a modified structured Cam-clay model. The effects of cement content and confining pressures on G/Gmax are modeled and validated with experimental results from resonant column and cyclic triaxial testing. In addition, the damping ratio is calculated based on the Masing rule; however, for cement treated clays, this rule overestimates the damping ratio at all ranges of shear strain. In this study, correction factors are established to propose a reliable damping ratio model. The newly proposed G/Gmax and damping formulations provide reasonable estimates that match well with the experimental results. These formulations can be used in the seismic response analysis of cement treated ground.
Shear Modulus and Damping Ratio Model for Cement Treated Clay
A hyperbolic model-based normalized shear modulus reduction (G/Gmax) formulation for cement treated clay is presented. This three-parameter normalized shear modulus reduction model can be constructed using maximum shear modulus and isotropic compression experiments. The model assumes that cemented clay follows the failure pattern of a modified structured Cam-clay model. The effects of cement content and confining pressures on G/Gmax are modeled and validated with experimental results from resonant column and cyclic triaxial testing. In addition, the damping ratio is calculated based on the Masing rule; however, for cement treated clays, this rule overestimates the damping ratio at all ranges of shear strain. In this study, correction factors are established to propose a reliable damping ratio model. The newly proposed G/Gmax and damping formulations provide reasonable estimates that match well with the experimental results. These formulations can be used in the seismic response analysis of cement treated ground.
Shear Modulus and Damping Ratio Model for Cement Treated Clay
Subramaniam, Palanidoss (Autor:in) / Banerjee, Subhadeep (Autor:in) / Ku, Taeseo (Autor:in)
16.04.2019
Aufsatz (Zeitschrift)
Elektronische Ressource
Unbekannt
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