Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
DEM Simulations of the Seismic Response of Soil-Foundation-Structure Systems
A novel three-dimensional particle-based technique utilizing DEM is proposed to analyze the seismic response of soil-foundation-structure systems. The proposed approach is employed to investigate the response of a SDOF structure on a square spread footing founded on a dry granular deposit. The granular soil deposit is idealized as a collection of spherical particles using DEM. The spread footing is modeled as a rigid block composed of clumped particles and its motion is described by the resultant forces and moments acting upon it. The structure is modeled as a SDOF system. Analysis is done in a fully coupled scheme in time domain. The computational approach is able to capture essential dynamic response patterns. The cyclic moment-rotation relationships at the base center point of the footing showed degradation of rotational stiffness by increasing the level of strain. However, the lateral load sliding relationship of the foundation did not indicate a significant change in the lateral stiffness of the footing.
DEM Simulations of the Seismic Response of Soil-Foundation-Structure Systems
A novel three-dimensional particle-based technique utilizing DEM is proposed to analyze the seismic response of soil-foundation-structure systems. The proposed approach is employed to investigate the response of a SDOF structure on a square spread footing founded on a dry granular deposit. The granular soil deposit is idealized as a collection of spherical particles using DEM. The spread footing is modeled as a rigid block composed of clumped particles and its motion is described by the resultant forces and moments acting upon it. The structure is modeled as a SDOF system. Analysis is done in a fully coupled scheme in time domain. The computational approach is able to capture essential dynamic response patterns. The cyclic moment-rotation relationships at the base center point of the footing showed degradation of rotational stiffness by increasing the level of strain. However, the lateral load sliding relationship of the foundation did not indicate a significant change in the lateral stiffness of the footing.
DEM Simulations of the Seismic Response of Soil-Foundation-Structure Systems
Shamy, U. El (Autor:in) / Zamani, N. (Autor:in)
GeoCongress 2012 ; 2012 ; Oakland, California, United States
GeoCongress 2012 ; 1730-1739
29.03.2012
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
DEM Simulations of the Seismic Response of Soil-Foundation-Structure Systems
| British Library Conference Proceedings | 2012