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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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Earthquake and Structures, 2016 Tuned mass dampers (TMDs) have been frequently proposed to mitigate the detrimental effects of dynamic loadings in structural systems. The effectiveness of this protection strategy has been demonstrated for wind-induced vibrations and, to some extent ...
Giuseppe Quaranta +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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Response of buildings to near-field pulse-like ground motions
Earthquake Engineering & Structural Dynamics, 1999Ground motions affected by directivity focusing at near-field stations contain distinct pulses in acceleration, velocity, and displacement histories. For the same Peak Ground Acceleration (PGA) and duration of shaking, ground motions with directivity pulses can generate much higher base shears, inter-storey drifts, and roof displacements in high-rise ...
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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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Stochastic Simulation of Pulse-Like Ground Motions Using Wavelet Packets
Bulletin of the Seismological Society of AmericaABSTRACT Seismic near-fault ground motions with large amplitudes and long-period velocity pulses can cause significant damage to structures. In this study, a new stochastic model has been developed to simulate pulse-like ground motions for specified earthquake scenarios.
Zhuo Wang, Duruo Huang
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Input Energy Spectra for Pulse-Like Ground Motions
2023C. Frau, S. Panella, M. Tornello
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Overturning of Freestanding Cylindrical Structures under Pulse-like Ground Motions
IABSE Reports<p>This paper focuses on predicting the seismic overturning of freestanding cylindrical structures. Idealized cylinders of different sizes and slenderness are excited by synthetic pulse-like ground motions. A total of 245000 results are summarized in the form of the overturning spectrum.
Xun Zhou, Jianzhong Li
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Frequency comparison of the pulse-like and non-pulse ground motions
8th International Symposium on Reliability Engineering and Risk Management, 2022G. Chen, Y. Liu, M. Beer
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Detection of pulse-like ground motions based on continues wavelet transform
Journal of Seismology, 2010This paper implements a quantitative approach to detect pulse-like ground motions based on continues wavelet transform, which is able to clearly identify sudden jumps in time history of earthquake records by considering contribution of different levels of frequency.
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