Elastic and Inelastic Response Spectra Considering Near-Fault Effects

Zamora, M. L. Catalina; Riddell, Rafael

doi:10.1080/13632469.2011.555058

Cited by 54 publications

(27 citation statements)

References 29 publications

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“…Earlier studies (Howard et al, 2005;Baker, 2007;Zamora and Riddell, 2011) have shown that pulse-like features can be detected in a range of orientations. The proposed approach has enabled the range of these pulse-like and nonpulse-like orientations to be shown in a quantitative way.…”

Section: Consideration Of Pulse-like Features In Arbitrary Orientationsmentioning

confidence: 97%

“…The topic of under what conditions the motion at a site can be classified as pulse-like still remains undetermined. Shahi and Baker (2011) once observed that a site can be deemed as having experienced a pulse-like ground motion if the ground motion in any orientation at the site can be classified as pulse-like; while a total sector of at least 60°is given by Zamora and Riddell (2011).…”

Section: Consideration Of Pulse-like Features In Arbitrary Orientationsmentioning

confidence: 99%

“…Although many pulse-like ground motions can be conveniently detected by such process, there are still some visible pulse-like records that cannot be identified because the pulse-like feature may occasionally miss the threshold level used for classification (Shahi and Baker, 2011). Zamora and Riddell (2011) have imposed some additional conditions upon the Baker's criterion to minimize the degree of doubt in classifying pulse-like ground motions.…”

Section: Introductionmentioning

confidence: 98%

See 2 more Smart Citations

Quantitative Identification of Near-Fault Pulse-Like Ground Motions Based on Energy

Zhai

Chang

et al. 2013

Bulletin of the Seismological Society of America

121

105

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Near-fault pulse-like ground motions have long been known to be capable of inducing significant seismic damages to the building structures. Reasonable classification of such ground motions has been a challenge to earthquake engineers. This study serves to propose an energy-based approach that can be used to identify those ground motions with dominant pulses observed in the velocity time series; and time integral of the squared ground velocity is employed to represent the motion energy. For removing the influence of high-frequency contents, the potential velocity pulse is first extracted with a pulse model. The starting and ending time points as well as period of the velocity pulse are subsequently determined by the peak-point method. Records with peak ground velocities above 30 cm=s from a database containing more than 3600 recorded ground motions are selected and utilized to calibrate the final criterion. It is concluded that those ground motions whose dominant velocity pulses hold relative energy values of greater than 0.3 can be satisfactorily classified as pulse-like. The proposed approach is further used to identify pulse-like features in arbitrary orientations and pulse-like ground motions possibly caused by forward-directivity effects.Online Material: Tables identifying ground motions with near-fault pulse-like behavior.

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Section: Consideration Of Pulse-like Features In Arbitrary Orientationsmentioning

confidence: 97%

Section: Consideration Of Pulse-like Features In Arbitrary Orientationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 98%

See 1 more Smart Citation

Quantitative Identification of Near-Fault Pulse-Like Ground Motions Based on Energy

Zhai

Chang

et al. 2013

Bulletin of the Seismological Society of America

121

105

View full text Add to dashboard Cite

show abstract

“…When considering the pulse-like motions and their seismic responses, the orientation of ground motions are paramount (Zamora and Riddell 2011;Shahi 2013). The combination of continuous wavelet transform coefficients from two horizontal and orthogonal components of a ground motion record is utilized to yield the orientation of its strongest pulse.…”

Section: A Stochastic Model and Synthesis Of Near-fault Impulsive Gromentioning

confidence: 99%

“…Generally speaking, near-fault ground motions are referred to the earthquake ground motions which are close to the rupture surface with the fault distance smaller than 20 km, and strongly depend on the rupture mechanism and obviously involve rupture forward directivity and fling-step effect. At present, there are numerous of theoretical and experimental studies on the analysis of seismic responses and dynamic performance in building and bridge engineering, including the base-isolated structures and energy dissipation structures subjected to near-fault ground motions (Alavi and Krawinkler 2004;Kalkan and Kunnath 2006;Yi and Zhang 2007;Tang et al 2007;Zhao et al 2008;Rupakhety and Sigurdsson 2011;Zamora and Riddell 2011;Ma et al 2012;Li et al 2012;Psycharis et al 2013).…”

Section: Introductionmentioning

confidence: 99%

Recent advances in engineering characteristics of near-fault ground motions and seismic effects of building structures

Yang¹,

Yang²,

Chen³

2015

Proceedings of the Second International Conference on Performance-Based and Life-Cycle Structural Engineering (PLSE 2015)

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Severe damages of civil infrastructures under near-fault ground motions have impelled the community of earthquake engineering to pay intensive attention and investigation to their engineering characteristics and structural seismic effects. This paper reviews the recent research advances of authors in the engineering characteristics of near-fault ground motions and seismic responses and base-isolated performance analysis of building structures. Firstly, two non-structure-specific intensity measures, such as improved effective peak acceleration and velocity (IEPA, IEPV) were proposed. Two frequency content parameters were also suggested, namely the mean period of Hilbert marginal spectrum Tmh, and coefficient of variance of dominant instantaneous frequency of Hilbert spectrum Hcov which reflects the frequency nonstationary degree of ground motions. Meanwhile, a new stochastic model to synthesize near-fault impulsive ground motions with the feature of the strongest pulse was established. Then, the chaotic and fractal/multifractal characteristics of strong earthquake ground motions were analyzed deeply to explore their complexity from a novel perspective of nonlinear dynamics, and the inherent relation between fractal dimensions and period parameters of near-fault motions was exposed. Moreover, the mechanism of interstory deformation of tall building was illustrated based on engineering properties of pulse-like ground motions and generalized drift spectral analysis. Finally, the influence of ground motion properties on the seismic responses and performance of tall structures and baseisolated buildings was revealed.

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On Near‐Fault Ground Motion Characteristics Through Multi‐Scale Method

Zhao

Xie

2013

Chinese J of Geophysics

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Ground motion recorded in near-fault regions that possesses long-period pulse is a special destructive ground motion. For further research on the constituent of low-frequency component and its pulse characteristics, a decomposition method based on multi-scale analysis method in wavelet theory is proposed. Accordingly, an intact ground motion can be decomposed into multiple components having different frequency contents. Firstly, the validity and accuracy of this decomposition method are elaborated in three aspects which are the frequency domain, time domain and the dynamic response. Secondly, a suite of 53 typical near-fault ground motions recorded from 12 recent major earthquakes are decomposed through this method, then a total of 266 ground motion components are obtained. Thirdly, a quantitative statistical study of the variation of the long period components contained in near-fault ground motions with the impact of site and rupture distance is carried out in this paper. Lastly, predominant component is used as the simplified model of dominant pulse, and the variation of velocity amplitude and pulse period with the impact of magnitude and rupture distance is presented. It is concluded that: the period of the component which is the main ingredient of near-fault ground motions is within 0.2∼2 s; the long-period component contained in soil ground motions is richer than in rocks; in nearfault area where the rupture distance is 0∼15 km, the proportion of the long period component decreases along with rupture distance increase; P GVp, the velocity amplitude of predominant component, is about 0.6 times of P GV , the velocity amplitude of original ground motion, and a clear linear relation is found between them; P GVp decreases as rupture distance increases, and will be larger in great earthquakes; logarithm of the pulse periods Tp increases linearly as magnitude increases.

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Elastic and Inelastic Response Spectra Considering Near-Fault Effects

Cited by 54 publications

References 29 publications

Quantitative Identification of Near-Fault Pulse-Like Ground Motions Based on Energy

Quantitative Identification of Near-Fault Pulse-Like Ground Motions Based on Energy

Recent advances in engineering characteristics of near-fault ground motions and seismic effects of building structures

On Near‐Fault Ground Motion Characteristics Through Multi‐Scale Method

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