Results 41 to 50 of about 31,353 (167)

近断层地震动加速度峰值比和脉冲特征的统计分析

open access: yesDizhen xuebao
为进一步了解近断层地震动的显著竖向特性和速度脉冲特性,基于NGA-West2强地面运动数据库选取1 706组强地震动记录,研究了竖向与水平向加速度峰值比aV/aH的总体分布特征,并探讨了aV/aH随矩震级MW、断层距Rjb、场地类别和断层类型变化的规律。在此基础上,通过Baker脉冲识别方法选取出140组近断层速度脉冲地震动,并提取出每条地震动记录的脉冲周期Tp和速度脉冲峰值PGVp,研究其脉冲参数随矩震级MW和断层距Rjb变化的统计规律及经验模型。结果表明:近断层加速度峰值比aV ...
Shangrong Zhang   +3 more
doaj   +1 more source

Research on Near-Fault Problems in Earthquake Engineering

open access: yesTELKOMNIKA Indonesian Journal of Electrical Engineering, 2012
The state-of-the-art of near-fault problems in earthquake engineering is comprehensive reviewed. Strong ground motions in the near-fault region exhibit several new characteristics, which cause the attentions of both seismologists and engineers who zealously studied these ground motions during the last two deceases.
openaire   +1 more source

A simplified method for determining the equivalent peak ground acceleration of near-fault pulse-like ground motions

open access: yesGeomatics, Natural Hazards & Risk
Near-fault ground motions (NFGMs) differ significantly from far-field ground motions (FFGMs), as NFGMs exhibit pronounced pulse effects and directionality.
Xianqing Cheng   +4 more
doaj   +1 more source

2001 Bhuj-Kachchh earthquake: surface faulting and its relation with neotectonics and regional structures, Gujarat, Western India

open access: yesAnnals of Geophysics, 2003
Primary and secondary surface deformation related to the 2001 Bhuj-Kachchh earthquake suggests that thrusting movement took place along an E-W fault near the western extension of the South Wagad Fault, a synthetic fault of the Kachchh Mainland ...
M. G. Thakkar, J. P. McCalpin
doaj   +1 more source

Study on characteristic parameters of near-fault response spectrum

open access: yesIOP Conference Series: Materials Science and Engineering, 2018
883 vertical earthquake records within the fault distance of 100 km were selected to study that whether the vertical design response spectrum characteristic parameter should be also used for the seismic design of engineering structure in near-fault region.
Jiale Li, Hongjing Li, Guangjun Sun
openaire   +1 more source

Comparison between the Effects of Near- and Far-Fault Ground Motions on the Seismic Response of a Soil-Pile-Structure System [PDF]

open access: yesJournal of Structural and Construction Engineering, 2016
Ground motions recorded in near-fault sites, where the rupture propagates toward the site, are significantly different from those observed in far-fault regions.
Saeed Abbasi Karafshani   +2 more
doaj  

A physical model for widespread near‐surface and fault zone damage induced by earthquakes

open access: yesGeochemistry, Geophysics, Geosystems, 2008
I present a rigorous unifying interpretation of the well‐documented widespread near‐surface and fault zone damage induced by earthquakes by simulating three‐dimensional dynamic rupture propagation on a vertical strike‐slip fault.
Shuo Ma
doaj   +1 more source

A Study on the Sloshing Problem of Vertical Storage Tanks under the Action of Near-Fault Earthquakes

open access: yesAdvances in Civil Engineering, 2020
In this study, through a vibration table test, finite element simulation, and research on the rationality of the wave-height fortification of national storage tank specifications, the sloshing response of vertical storage tanks under the action of near ...
Lijian Zhou   +3 more
doaj   +1 more source

Research on Elastic Displacement Response Spectra of Near fault Ground Motions

open access: yes工程科学与技术, 2008
:In order to study displacement based seismic design method of near fault ground motions, 30 earthquakes and 132 near fault ground motion records were selected as statistical samples. The elastic displacement response spectra formula of near fault ground
卢明奇
doaj  

Enhancing Near-Fault Ground Motion Recognition Through ICEEMDAN Technology

open access: yes工程科学与技术
Near-fault ground motion represents an exceptionally hazardous seismic activity characterized by high-energy velocity pulses. These pulses rapidly input a substantial amount of seismic energy into structures, causing significant damage in a very short ...
Zhen LIU, Junlin LU, Xingliang MA
doaj  

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