Results 271 to 280 of about 36,590 (291)

Dominant pulse simulation of near fault ground motions

Earthquake Engineering and Engineering Vibration, 2013
In this study, a new mathematical model is developed composed of two parts, including harmonic and polynomial expressions for simulating the dominant velocity pulse of near fault ground motions. Based on a proposed velocity function, the corresponding expressions for the ground acceleration and displacement time histories are also derived. The proposed
S. R. Hoseini Vaez, M. K. Sharbatdar, G. Ghodrati Amiri, H. Naderpour, A. Kheyroddin   +4 more
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Quantifying near fault pulses using generalized Morse wavelets

Journal of Seismology, 2019
Recently, a family of analytic wavelets known as generalized Morse wavelets (GMW) has been established in the literature. This versatile wavelet family uses two parameters (γ and β) to adjust its frequency or time domain properties. By varying these two parameters, this wavelet family includes many commonly used analytic wavelets.
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Representation of near-fault pulse-type ground motions

Earthquake Engineering and Engineering Vibration, 2005
Near-fault ground motions with long-period pulses have been identified as critical in the design of structures. To aid in the representation of this special type of motion, eight simple pulses that characterize the effects of either the fling-step or forward-directivity are considered.
Lili Xie, Longjun Xu, Rodriguez-Marek Adrian   +2 more
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A Mathematical Representation of Near-Fault Ground Motions

Bulletin of the Seismological Society of America, 2003
A simple, yet effective, analytical model is proposed for the representation of near-field strong ground motions. The model adequately describes the impulsive character of near-fault ground motions both qualitatively and quantitatively. In addition, it can be used to analytically reproduce empirical observations that are based on available near-source ...
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Performance of sliding systems under near-fault motions

Nuclear Engineering and Design, 2001
Response of structures supported on the sliding systems under near-fault earthquake ground motion is investigated. The fault normal and parallel components are applied in two horizontal direction of the system. The superstructure is considered to be rigid and the frictional forces mobilized at the interface of the sliding system are assumed to be ...
RAO, PBHASKER, JANGID, RS
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Structural damage in the near-fault

2002
London (UK)
COSENZA, EDOARDO, MANFREDI, GAETANO, M. Polese   +2 more
openaire   +4 more sources

Cyclic demand in the near fault area

2002
Boston (USA)
COSENZA, EDOARDO, MANFREDI, GAETANO, M. Polese   +2 more
openaire   +4 more sources

Reversed-Polarity Secondary Deformation Structures Near Fault Stepovers

Journal of Applied Mechanics, 2012
We study volumetric deformation structures in stepover regions using numerical simulations and field observations, with a focus on small-scale features near the ends of rupture segments that have opposite-polarity from the larger-scale structures that characterize the overall stepover region. The reversed-polarity small-scale structures are interpreted
Yehuda Ben-Zion, Thomas K. Rockwell, Zheqiang Shi, Shiqing Xu   +3 more
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Optimum friction pendulum system for near-fault motions

Engineering Structures, 2005
The analytical seismic response of multi-story buildings isolated by the friction pendulum system (FPS) is investigated under near-fault motions. The superstructure is idealized as a linear shear type flexible building. The governing equations of motion of the isolated structural system are derived and the response of the system to the normal component
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Stochastic model for simulation of near‐fault ground motions

Earthquake Engineering & Structural Dynamics, 2016
SummaryA parameterized stochastic model of near‐fault ground motion in two orthogonal horizontal directions is developed. The major characteristics of recorded near‐fault ground motions are represented. These include near‐fault effects of directivity and fling step; temporal and spectral non‐stationarity; intensity, duration, and frequency content ...
Mayssa Dabaghi, Armen Der Kiureghian
openaire   +1 more source