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The Vertical and Horizontal Spectra of Near-Fault Ground Motions
Applied Mechanics and Materials, 2012Based on the horizontal and vertical components of a set of 30 acceleration records obtained from 10 near-fault earthquakes, the horizontal and the vertical response spectra are established, and have been compared with each other in this study. Statistical analyses show that, for the selected 30 acceleration records, the maximum mean of vertical ...
Jiang Yin, Xian Yan Zhou, Guo Jing He
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Near-Fault Ground Motion Effects on Simple Structures
Journal of Structural Engineering, 2001Ground motion records obtained from sites at known locations relative to earthquake faults were used to study near-fault (NF) ground shaking effects on the inelastic response of simple structures. The structures were idealized as single-degree-of-freedom oscillators with periods ranging from 0.05 to 3.0 s, a damping ratio of 2%, and target ductilities ...
Gregory A. MacRae +2 more
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Representation of near-fault pulse-type ground motions
Earthquake Engineering and Engineering Vibration, 2005Near-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 +2 more
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Near-Fault Earthquake Ground Motion and Seismic Isolation Design
2023Seismic isolation is one of the most reliable passive structural control techniques with adequately established standards for the earthquake protection of structures from earthquakes. However, it has been shown that the seismic isolation systems may not function the best for the near-fault ground motions, since in the proximity of a capable fault, the ...
Harmandar, Ebru +5 more
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Residual slip of sliding blocks induced by near‐fault ground motions
Earthquake Engineering & Structural Dynamics, 2016SummaryThe 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 +1 more
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Damping coefficients for near-fault ground motion response spectra
Soil Dynamics and Earthquake Engineering, 2011Abstract Damping coefficients are frequently used in earthquake engineering as a simple way to adjust the pseudo-acceleration or displacement response spectra associated with a viscous damping ratio of 5% to the higher values of viscous damping needed for design of structures equipped with base isolation and/or supplemental energy dissipation devices.
Derek T. Hubbard, George P. Mavroeidis
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Simulation of Near Fault Ground Motion in Delhi Region
2014Ground 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 +2 more
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Near-fault fling-step ground motions: Characteristics and simulation
Soil Dynamics and Earthquake Engineering, 2017Abstract 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
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Characteristics of near-fault ground motion containing velocity pulses
Acta Seismologica Sinica, 2006There 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
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A stochastic model and synthesis for near‐fault impulsive ground motions
Earthquake Engineering & Structural Dynamics, 2014SummaryThe orientations of ground motions are paramount when the pulse‐like motions and their unfavorable seismic responses are considered. This paper addresses the stochastic modeling and synthesizing of near‐fault impulsive ground motions with forward directivity effect taking the orientation of the strongest pulses into account. First, a statistical
Dixiong Yang, Jilei Zhou
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