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Identification of pulse-like ground motions using artificial neural network
Earthquake Engineering and Engineering Vibration, 2022For more than 20 years, the concept of near-fault pulse-like ground motion has been a topic of great interest due to its distinct characteristics, particularly due to directivity or fling effects, which are hugely influenced by the rupture mechanism. These unexpected characteristics, along with their effective frequency, energy rate, and damage indices,
Ahed Habib, Iman Youssefi
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Power responses of a building subjected to pulse‐like ground motions
Earthquake Engineering & Structural Dynamics, 2021AbstractCompared with non‐pulse‐like ground motions, pulse‐like ground motions are usually near‐fault motions with forward directivity or fling‐step effect. These pulse‐like ground motions are characterized by prominent velocity pulses. The impact force caused by such velocity pulses is generally more destructive than the inertia force induced by ...
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A simple and intuitive procedure to identify pulse-like ground motions
Soil Dynamics and Earthquake Engineering, 2017Abstract Near-fault seismic ground motions are frequently characterized by intense velocity and displacement pulses of relatively long periods that clearly distinguish them from typical far-field ground motions. Intense velocity pulse motions can affect adversely the seismic performance of structures.
Dante Sebastian Panella +2 more
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Explicit determination of the pulse inherent in pulse‐like ground motions
Earthquake Engineering & Structural Dynamics, 2014SUMMARYA new method is presented for the determination of the parameters of the pulse contained in pulse‐like records. The Mavroeidis and Papageorgiou (M&P) wavelet is used for the mathematical representation of the pulse, but the proposed methodology could be modified to cover other types of wavelets as well.
Petros Mimoglou +2 more
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An improved energy‐based approach for selecting pulse‐like ground motions
Earthquake Engineering and Structural Dynamics, 2016SummaryThis study proposes an improved energy‐based approach for quantitative classification of velocity‐pulse‐like ground motions. The pulse amplitude is determined, in its value and in time location, by the amplitude of the half‐cycle pulse having the largest seismic energy.
Zhiwang Chang +2 more
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Simulation of Near-Field Pulse-Like Ground Motion
2012The accurate prediction of ground motions from possible future earthquakes is the first step toward the robust assessment and mitigation of structural damage against earthquake hazards. The modeling of critical or resonant ground motions has been developed by the present authors in several studies.
Izuru Takewaki +2 more
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POWER RESPONSES OF A BUILDING UNDER THE EXCITATION OF PULSE-LIKE GROUND MOTIONS
2nd Croatian Conference on Earthquake Engineering ‒ 2CroCEE, 2023In comparison with far-field (FF) ground motions, near-fault (NF) ground motions with forward directivity or fling-step effect are characterized by large pulses. These pulse-like (PL) ground motions have pronounced coherent pulses in velocity and displacement histories.
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Deterministic and probabilistic representation of near-field pulse-like ground motion
Soil Dynamics and Earthquake Engineering, 2010The response and damage assessment of engineering structures under near-field ground motions is currently of great interest. Near-field ground motion with directivity focusing or fling effects produces pulse-like ground motion that has characteristics different from those of ordinary records.
Moustafa, Abbas, Takewaki, Izuru
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Quantification of response spectra of pulse-like near-fault ground motions
Soil Dynamics and Earthquake Engineering, 2018Abstract This study aims to quantify the acceleration and displacement response spectra of pulse-like near-fault ground motions, which can be further employed to derive the seismic force demands of a structure system or structural member. The spectra are computed based on a set of pulse type ground motions, and the spectral shapes are derived by ...
Wuchuan Pu +3 more
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Earthquake Engineering & Structural Dynamics, 2018
SummaryPulse‐like records are well recognized for their potential to impose higher demands on structures when compared with ordinary records. The increased severity of the structural response usually caused by pulse‐like records is commonly attributed to the spectral increment around the pulse period.
Mohsen Kohrangi +2 more
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SummaryPulse‐like records are well recognized for their potential to impose higher demands on structures when compared with ordinary records. The increased severity of the structural response usually caused by pulse‐like records is commonly attributed to the spectral increment around the pulse period.
Mohsen Kohrangi +2 more
openaire +1 more source