A predictive model for fling-step in near-fault ground motions based on recordings and simulations

Burks, Lynne S.; Baker, Jack W.

doi:10.1016/j.soildyn.2015.10.010

Cited by 79 publications

(49 citation statements)

References 28 publications

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“…The model proposed by Burks and Baker (2016) is also in agreement with the eBASCO results (Figure 8), supporting the reliability of the processing scheme. Further in-depth analysis should be done about permanent displacement recovered from SM data lower than 1 cm (see grey box in Figure 7 and 8) at distances greater than 10 km; in such cases low signal-to-noise ratios or site effects could make the use of eBASCO pointless.…”

Section: Fling-step Amplitudesupporting

confidence: 82%

“…The comparison with geodetic measurements or ground motion simulations may be very helpful to obtain reliable displacement traces (Burks and Baker 2016). Generally, geodetic measurements provide accurate estimates of ground displacement and studies on earthquake sources have started to widely exploit these space-geodetic methods, such as GPS (Global Positioning System) and…”

mentioning

confidence: 99%

“…The scarcity of predictive models for static offset reflects the difficulty in recovering the permanent displacement from strong motion data. Nowadays, in fact, there are very few published models for fling parameters, such as those by Abrahamson (2002), Kamai et al (2014) and Burks and Baker (2016), which are largely derived from ground-motion simulations based on strike-slip and reverse faulting scenarios.…”

mentioning

confidence: 99%

See 2 more Smart Citations

Fling Effects from Near‐Source Strong‐Motion Records: Insights from the 2016 Mw 6.5 Norcia, Central Italy, Earthquake

D’Amico

Felicetta

Schiappapietra

et al. 2018

Seismological Research Letters

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1. Introduction When an earthquake occurs, the elastic strain gradually accumulated for long time on either side of a fault is suddenly released. The elastic rebound generates the dynamic component of the motion and the static deformation of the ground. In the proximity of the source of large earthquakes, this tectonic displacement may be recorded by accelerometric instruments. The corresponding waveforms have characteristic shapes, producing a one-sided pulse in the velocity trace and an offset (fling-step) at the end of the displacement waveform (Figure 1a). The fling-step may be on the order of tens or hundreds of centimeters (Boore and Bommer 2005) and it is typically observed along the slip direction: it appears along strike-parallel direction for strike-slip faults (Kalkan et al., 2004), whereas it can be observed both in the strike-normal and vertical directions for dip-slip faults

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Section: Fling-step Amplitudesupporting

confidence: 82%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Fling Effects from Near‐Source Strong‐Motion Records: Insights from the 2016 Mw 6.5 Norcia, Central Italy, Earthquake

D’Amico

Felicetta

Schiappapietra

et al. 2018

Seismological Research Letters

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“…An exclusive sine wave model for fling-step pulse waveforms was recently introduced by Burks and Baker [20]. However, a single sine wave cannot fully describe fling-step pulses, as they may consist of more than one frequency.…”

Section: Ground Motionmentioning

confidence: 99%

“…However, a single sine wave cannot fully describe fling-step pulses, as they may consist of more than one frequency. Burks and Baker [20] presented a number of equations to predict the parameters of their model without the need for producing fling-step pulses.…”

Section: Ground Motionmentioning

confidence: 99%

Seismic Response of Steel Moment Frames (SMFs) Considering Simultaneous Excitations of Vertical and Horizontal Components, Including Fling-Step Ground Motions

Shahbazi¹,

Karami

et al. 2019

Applied Sciences

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Near-field (NF) earthquakes have drawn considerable attention from earthquake and structural engineers. In the field of earthquake engineering, numerous studies have identified the devastating nature of such earthquakes, and examined the characteristics related to the response of engineering structures to these types of earthquakes. Herein, special steel moment frames (SMFs) of three-, five-, and eight-story buildings have been examined via a nonlinear time history analysis in OpenSees software. The behavioral seismic differences of these frames have been evaluated in two states: (1) under the simultaneous excitation of the horizontal and vertical constituents of near-field earthquakes that have Fling-steps in their records; and (2) under simultaneous excitation of the horizontal and vertical constituents of far-field (FF) earthquakes. In addition, during modeling, the effects of panel zones have been considered. Considering that the simultaneous effects of the horizontal and vertical constituents of near-field earthquakes were subjected to a fling-step resulting in an increased inter-story drift ratio, the horizontal displacement of stories, an axial force of columns, created the moment in columns, base shearing of the structure, and velocity and acceleration of the stories.

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Analysis of bridge structures crossing strike‐slip fault rupture zones: A simple method for generating across‐fault seismic ground motions

Yang

Mavroeidis

Ucak

2020

Earthq Engng Struct Dyn

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Summary This article presents a simple and effective method for generating across‐fault seismic ground motions for the analysis of ordinary and seismically isolated bridges crossing strike‐slip faults. Based on pulse models available in the literature, two simple loading functions are first proposed to represent the coherent (long‐period) components of ground motion across strike‐slip faults. The loading functions are then calibrated using actual near‐fault ground‐motion records with a forward‐directivity velocity pulse in the fault‐normal direction and a fling‐step displacement in the fault‐parallel direction. The effectiveness of the proposed method is demonstrated by comparing time history responses and seismic demands of ordinary and seismically isolated bridges obtained from nonlinear response history analyses using the actual ground‐motion records and the calibrated loading functions. A comprehensive methodology is also presented for selecting the input parameters of the loading functions based on empirical equations and practical guidelines. Finally, an analysis procedure for bridge structures crossing strike‐slip faults is introduced based on the proposed method for generating across‐fault ground motions and the parameter selection methodology for the loading functions.

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A predictive model for fling-step in near-fault ground motions based on recordings and simulations

Cited by 79 publications

References 28 publications

Fling Effects from Near‐Source Strong‐Motion Records: Insights from the 2016 Mw 6.5 Norcia, Central Italy, Earthquake

Fling Effects from Near‐Source Strong‐Motion Records: Insights from the 2016 Mw 6.5 Norcia, Central Italy, Earthquake

Seismic Response of Steel Moment Frames (SMFs) Considering Simultaneous Excitations of Vertical and Horizontal Components, Including Fling-Step Ground Motions

Analysis of bridge structures crossing strike‐slip fault rupture zones: A simple method for generating across‐fault seismic ground motions

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