Earthquakes and Structures

  • 제16권4호
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  • Pages.415-423
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  • 2019
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  • 2092-7614(pISSN)
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  • 2092-7622(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Use of near-fault pulse-energy for estimating critical structural responses

  • Chang, Zhiwang (School of Civil Engineering, Southwest Jiaotong University) ;
  • Liu, Zhanhui (School of Civil Engineering, Southwest Jiaotong University) ;
  • Chen, Zhenhua (School of Civil Engineering, Southwest Jiaotong University) ;
  • Zhai, Changhai (School of Civil Engineering, Harbin Institute of Technology)
  • 투고 : 2018.12.30
  • 심사 : 2019.03.03
  • 발행 : 2019.04.25
⟨ 이전 논문 다음 논문 ⟩

초록

Near-fault ground motions can impose particularly high seismic demands on structures due to the pulses that are typically observed in the velocity time-histories. In this study it is empirically found that the critical response can be estimated from the directions corresponding to the maximum (max) or minimum (min) pulse-energy. Determination of the pulse-energy requires removing of the high-frequency content. For achieving this, the wavelet analysis and the least-square-fitting (LSF) algorithm are adopted. Results obtained by the two strategies are compared and differences between them are analyzed. Finally, the relationship between the critical response and the response derived from directions having the max or min pulse-energy confirms that using the pulse-energy for deriving the critical response of the building structures is reasonable.

키워드

과제정보

연구 과제 주관 기관 : National Natural Science Foundation of China, Central Universities, Southwest Jiao Tong University

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피인용 문헌

  1. The effect of pile cap stiffness on the seismic response of soil-pile-structure systems under near-fault ground motions vol.20, pp.1, 2019, https://doi.org/10.12989/eas.2021.20.1.087