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Simulation of Near-Field Pulse-Like Ground Motion

In: Improving the Earthquake Resilience of Buildings

Author

Listed:
  • Izuru Takewaki

    (Kyoto University)

  • Abbas Moustafa

    (Minia University)

  • Kohei Fujita

    (Kyoto University)

Abstract

The 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. These studies showed that the resonant ground motion has its energy in a narrow frequency range and produces larger damage in the structure compared to ordinary records. Resonant or pulse-like ground motion has been observed in near-field records with directivity focusing or fling effects. Such ground motion is influenced by the rupture mechanism and possesses the following characteristics: (1) large peak ground velocities and displacements, (2) concentration of energy in a single or a few pulses, and (3) unusual response spectra shapes. These features have been recently studied by these authors.

Suggested Citation

  • Izuru Takewaki & Abbas Moustafa & Kohei Fujita, 2013. "Simulation of Near-Field Pulse-Like Ground Motion," Springer Series in Reliability Engineering, in: Improving the Earthquake Resilience of Buildings, edition 127, chapter 0, pages 43-64, Springer.
    • Handle: RePEc:spr:ssrchp:978-1-4471-4144-0_3
    DOI: 10.1007/978-1-4471-4144-0_3
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