Results 261 to 270 of about 60,747 (305)

SIMULATION OF NEAR-FAULT GROUND MOTIONS USING FREQUENCY-DOMAIN DISCRETIZATION

2014
In 2008, S. Rezaeian and A. Der Kiureghian introduced a new fully nonstationary stochastic model for strong earthquake ground motions. The model employs a parameterized stochastic model, which is based on a modulated Gaussian white noise. In 2010, the same authors used this work as a base for developing a new method for generating a family of synthetic
Broccardo M., Der Kiureghian A.
openaire   +1 more source

Can Simple Pulses Adequately Represent Near-Fault Ground Motions?

Journal of Earthquake Engineering, 2011
This article investigates the importance of higher modes in the elastic response of tall buildings subjected to near-fault ground motions. Building structures modeled as generic frames are analyzed using a large set of forward-directivity affected pulse-like ground-motion records.
Rajesh Rupakhety, Ragnar Sigbjörnsson
openaire   +1 more source

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 ...
openaire   +1 more source

Characteristics of near-fault ground motion containing velocity pulses

Acta Seismologica Sinica, 2006
There are many reports about the research on near-fault velocity pulses, which focus on the generation of velocity pulse and simplify the velocity pulse so as to be used in the seismic design of structure. However few researches have put emphasis on the characteristics of near-fault ground motions containing velocity pulses, especially the ...
Tao Wei, Feng-xin Zhao, Yu-shan Zhang
openaire   +1 more source

Near-fault fling-step ground motions: Characteristics and simulation

Soil Dynamics and Earthquake Engineering, 2017
Abstract The presence of long-period pulses in the near-fault pulse-type ground motions increases the damage potential of such ground motions, particularly for the flexible structures like bridges. It is necessary to carry out nonlinear analyses of structural systems for ensuring their safety in the near-source regions.
Kshitij K. Yadav, Vinay K. Gupta
openaire   +1 more source

Multifractal characteristic analysis of near-fault earthquake ground motions

Soil Dynamics and Earthquake Engineering, 2015
Abstract This study aims to reveal the multi-scaling behavior and quantify the irregularity of near-fault earthquake ground motions from a new perspective of multifractal theory. Based on multifractal detrended fluctuation analysis, the multifractal characteristic parameters of acceleration time series for typical near-fault ground motions are ...
Dixiong Yang, Changgeng Zhang, Yunhe Liu
openaire   +1 more source

Automated parameterization of velocity pulses in near‐fault ground motions

Earthquake Engineering & Structural Dynamics, 2023
AbstractProper parameterization of near‐fault ground motions is of critical importance in earthquake engineering, and this process is traditionally performed by directly fitting an analytical pulse model to the original motion. Yet such a process is usually limited by the trial‐and‐error procedure, which is strongly dependent on the initial guesses and
Zhiwang Chang, Haoran Wu, Katsuichiro Goda   +2 more
openaire   +1 more source

Simulation method of near-fault pulse-type ground motion

Acta Seismologica Sinica, 2007
The two characteristics of near-fault ground motions, i.e., the forward directivity effect and permanent displacement effect, result in long period and large velocity pulse in the velocity time history and large step pulse in the displacement time history.
Yu-ji Tian, Qing-shan Yang, Ming-qi Lu
openaire   +1 more source

Residual slip of sliding blocks induced by near‐fault ground motions

Earthquake Engineering & Structural Dynamics, 2016
SummaryThe response of a rigid block supported on a horizontally moving foundation through a dry‐friction contact is investigated to near‐fault ground motions. Such motions can be thought of as consisting of a coherent component (‘pulse’) and an incoherent component, which can be described as a band‐limited ‘random noise’.
Meza Fajardo, Kristel Carolina, Papageorgiou, Apostolos   +1 more
openaire   +1 more source

Simulation of Near Fault Ground Motion in Delhi Region

2014
Ground motions in the vicinity of the source caused severe damage to structures as evidenced during the past earthquakes (Loma Prieta 1989; Kobe 1995; Chi-Chi 1999). Near fault ground motions are characterized by long period velocity pulse as reported in literature (Somerville, 2005).
Hemant Shrivastava, G. V. Ramana, A. K. Nagpal   +2 more
openaire   +1 more source