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Modeling and simulation of near-faul...

Mavroeidis, George P.

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Modeling and simulation of near-fault strong ground motions for earthquake engineering applications.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Modeling and simulation of near-fault strong ground motions for earthquake engineering applications./
作者:	Mavroeidis, George P.
面頁冊數:	218 p.
附註:	Source: Dissertation Abstracts International, Volume: 64-11, Section: B, page: 5656.
Contained By:	Dissertation Abstracts International64-11B.
標題:	Engineering, Civil. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3113512

Modeling and simulation of near-fault strong ground motions for earthquake engineering applications.
Mavroeidis, George P.

Modeling and simulation of near-fault strong ground motions for earthquake engineering applications. - 218 p.

Source: Dissertation Abstracts International, Volume: 64-11, Section: B, page: 5656.

Thesis (Ph.D.)--State University of New York at Buffalo, 2004.

This dissertation aims at providing to earthquake engineers simple tools and techniques that enhance the physical understanding, characterization, proper parameterization, analytical modeling, and numerical simulation of near-fault ground motions for earthquake engineering applications. A simple analytical model is proposed for the representation of near-source ground motions that adequately describes the impulsive character of near-fault seismic excitations both qualitatively and quantitatively. In addition, it can be used to analytically reproduce empirical observations that are based on available near-source records. The model input parameters have an unambiguous physical interpretation and scale, to the extent possible, with physical parameters of the fault rupture. A simplified methodology, for generating realistic broadband near-fault ground motions that are adequate for engineering analysis and design, is outlined and applied. A comprehensive study of the elastic and inelastic response of the single-degree-of-freedom (SDOF) system subjected to near-fault ground motion excitations is also presented. As a key parameter of the ground motion model emerges the pulse duration that is used to normalize the abscissa (period-axis) of response spectra. Such normalization makes feasible the specification of design spectra and reduction factors appropriate for near-fault ground motions. The effect of fault rupture characteristics on near-fault ground motions is also investigated using a kinematic approach in an attempt to identify physical processes that lead to specific ground motion patterns. Finally, the primary characteristics of strain, rocking, and torsional components of ground motion in the near-fault region induced by seismic excitations are discussed and a simplified approach is presented for the qualitative and quantitative description of the torsional component of the dynamic ground deformation field.Subjects--Topical Terms:

783781
Engineering, Civil.

Modeling and simulation of near-fault strong ground motions for earthquake engineering applications.
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502 $a Thesis (Ph.D.)--State University of New York at Buffalo, 2004.
520 $a This dissertation aims at providing to earthquake engineers simple tools and techniques that enhance the physical understanding, characterization, proper parameterization, analytical modeling, and numerical simulation of near-fault ground motions for earthquake engineering applications. A simple analytical model is proposed for the representation of near-source ground motions that adequately describes the impulsive character of near-fault seismic excitations both qualitatively and quantitatively. In addition, it can be used to analytically reproduce empirical observations that are based on available near-source records. The model input parameters have an unambiguous physical interpretation and scale, to the extent possible, with physical parameters of the fault rupture. A simplified methodology, for generating realistic broadband near-fault ground motions that are adequate for engineering analysis and design, is outlined and applied. A comprehensive study of the elastic and inelastic response of the single-degree-of-freedom (SDOF) system subjected to near-fault ground motion excitations is also presented. As a key parameter of the ground motion model emerges the pulse duration that is used to normalize the abscissa (period-axis) of response spectra. Such normalization makes feasible the specification of design spectra and reduction factors appropriate for near-fault ground motions. The effect of fault rupture characteristics on near-fault ground motions is also investigated using a kinematic approach in an attempt to identify physical processes that lead to specific ground motion patterns. Finally, the primary characteristics of strain, rocking, and torsional components of ground motion in the near-fault region induced by seismic excitations are discussed and a simplified approach is presented for the qualitative and quantitative description of the torsional component of the dynamic ground deformation field.
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