Extraction method using sinusoidal waves to simplify earthquake ground motion

Yamamoto, Masao; Satō, Yoshiyuki; Inoue, Shusaku

doi:10.1002/2475-8876.12035

Cited by 3 publications

(1 citation statement)

References 5 publications

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“…Korchinsky in substantiating earthquake-resistant construction standards. The said model has also been widely applied abroad [1][2][3][4]. Later it was proposed to simulate the input by functions of V.A.…”

Section: Introductionmentioning

confidence: 99%

Some principles of generating seismic input for calculating structures

Uzdin

Prokopovich

2020

E3S Web Conf.

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In this paper different models of seismic input are analyzed. The most essential characteristics of seismic effects are peak ground acceleration, peak ground velocity, peak ground displacement, Arias intensity, cumulative absolute velocity, seismic energy density, harmonic coefficient κ, pseudo spectral kinematic characteristics, root-mean-square peak kinematic characteristics, plastic forces work and damage spectrum. The influence of seismic impulse on characteristics of seismic input is studied. A.A. Dolgaya’s and L.N. Dmitrovskaya’s models with seismic impulse are compared. L.N. Dmitrovskaya’s model allows to reach estimated values of energy characteristics of seismic input with the smallest deviation. When generating such processes, it is important to take into account both the properties of real actions and the limiting state of the calculated structure. The considered models of seismic inputs should be applied in the following cases: a) in case of designing mass construction projects when it is not possible to get a package of design accelerograms, b) in typical designing when the design object can be located on sites with different seismic and geological conditions, c) at early stages of designing important objects when the package of design accelerograms is not available yet but it is necessary to make technical solutions.

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Section: Introductionmentioning

confidence: 99%

Some principles of generating seismic input for calculating structures

Uzdin

Prokopovich

2020

E3S Web Conf.

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Modeling Analysis of Seismic Wave Generation and Control Based on Twin Rotary Valve

Wang

Liu

Sheng

2022

Journal of Dynamic Systems, Measurement, and Control

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The earthquake simulation shaking table is an indispensable equipment for earthquake research. A new seismic wave generation and control method based on the twin rotary valve is proposed to meet the requirements of the flexible regulation of simulated seismic waves for large-scale testing. Meanwhile, the static and dynamic regulation characteristics are analyzed based on the mathematical model of the novel system aiming to further improve the frequency bandwidth and amplitude of the system. The research results show that the novel structure and control method are feasible in terms of the flexible regulation of the waveform frequency and amplitude, which provides new ideas to further enhance the level of the seismic wave control technology for large-scale testing.

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Rocking Blocks Stability under Critical Pulses from Near-Fault Earthquakes Using a Novel Energy Based Approach

Karam¹,

Tabbara²

2020

Applied Sciences

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Following the seminal work of Housner, a novel energy based critical pulse theoretical model is derived to assess the seismic stability of rocking rigid blocks under single pulses from near-fault earthquakes. It is shown that overturning is conditional on the availability of sufficient kinetic energy in the exciting pulse and on the inception of rocking. The theoretical model is shown to be in good agreement with discrete element method numerical simulations for similar blocks of sizes 0.5, 1, and 20 m. Similitude rules are established to scale between block sizes and pulse types and tested successfully. The results agree with available experimental data. The proposed stability chart approach provides a practical and simple alternative to the presentation and study of the stability and overturning of blocks published by others in the frequency spectrum domain. For any given rigid block or inverted pendulum structure the model or normalized stability charts provide a method to determine the characteristic period and peak acceleration required for overturning and by extension to identify the critical content of the dominant pulse of a given earthquake signal. Alternatively, the approach could be used in archaeoseismology to identify the characteristics of the dominant pulse content of past earthquakes based on their impacts on various historical and heritage structures.

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Extraction method using sinusoidal waves to simplify earthquake ground motion

Cited by 3 publications

References 5 publications

Some principles of generating seismic input for calculating structures

Some principles of generating seismic input for calculating structures

Modeling Analysis of Seismic Wave Generation and Control Based on Twin Rotary Valve

Rocking Blocks Stability under Critical Pulses from Near-Fault Earthquakes Using a Novel Energy Based Approach

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