Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Dimensional Analysis of Soil-Foundation-Structure System Subjected to Near Fault Ground Motions
This paper investigates in depth the dynamic responses of soil-foundation-structure systems using dimensional analysis in order to evaluate the significance of soil-structure interaction effects when subjected to near-fault ground motions. A soil-foundation-structure interacting (SFSI) system is idealized into a simplified 2DOF system where both linear and elastic-plastic structures with flexible foundations are considered. Through rigorous dimensional analysis, the response of superstructure is presented in terms of the dimensionless II-products. This approach brings forward the self-similarity, the invariance with respect to changes in scale or size, which decisively describe the interactive behaviour of a foundation-structure system. Extensive simulations have been conducted on various foundation-structure systems subjected to pulse-type ground motions to numerically describe the structural response, i.e. dimensionless relative displacement, as function of distinctive properties of superstructure and foundation. Results show that soil-structure interaction is insignificant for a variety of structure-foundation systems in practice. However, there are conditions under which the response of foundation-structure system is significantly higher than that of the fixed-base structure.
Dimensional Analysis of Soil-Foundation-Structure System Subjected to Near Fault Ground Motions
This paper investigates in depth the dynamic responses of soil-foundation-structure systems using dimensional analysis in order to evaluate the significance of soil-structure interaction effects when subjected to near-fault ground motions. A soil-foundation-structure interacting (SFSI) system is idealized into a simplified 2DOF system where both linear and elastic-plastic structures with flexible foundations are considered. Through rigorous dimensional analysis, the response of superstructure is presented in terms of the dimensionless II-products. This approach brings forward the self-similarity, the invariance with respect to changes in scale or size, which decisively describe the interactive behaviour of a foundation-structure system. Extensive simulations have been conducted on various foundation-structure systems subjected to pulse-type ground motions to numerically describe the structural response, i.e. dimensionless relative displacement, as function of distinctive properties of superstructure and foundation. Results show that soil-structure interaction is insignificant for a variety of structure-foundation systems in practice. However, there are conditions under which the response of foundation-structure system is significantly higher than that of the fixed-base structure.
Dimensional Analysis of Soil-Foundation-Structure System Subjected to Near Fault Ground Motions
Zhang, Jian (Autor:in) / Tang, Yuchuan (Autor:in)
Geotechnical Earthquake Engineering and Soil Dynamics Congress IV ; 2008 ; Sacramento, California, United States
14.05.2008
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
Dimensional Analysis of Soil-Foundation-Structure System Subjected to Near Fault Ground Motions
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