Earthquakes and Structures

  • 제7권6호
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  • Pages.1241-1258
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  • 2014
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  • 2092-7614(pISSN)
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  • 2092-7622(eISSN)
테크노프레스 (Techno-Press)
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DOI QR코드

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Response of structures to seismic sequences corresponding to Mexican soft soils

  • 투고 : 2014.02.20
  • 심사 : 2014.10.08
  • 발행 : 2014.12.25
⟨ 이전 논문 다음 논문 ⟩

초록

This is paper presents the results of an analytical study aimed at evaluating the effect of narrow-banded mainshock/aftershock seismic sequences on the response of structures built on very soft soil sites. Due to the scarce availability of recorded seismic sequences in accelerographic stations located in the lake-bed of Mexico City, artificial narrow-banded sequences were employed. In the first part of this study, a parametric investigation was carried out to identify the mainshock/aftershock ground motion features that have detrimental effects in the seismic performance of equivalent single-degree-of-freedom systems representative of framed-buildings that house standard and essential facilities. In the second part of this work, the seismic response of two (8- and 18-story) steel-moment resisting frames that house essential facilities is examined. It is concluded that buildings with fundamental periods of vibration longer than the dominant period of the mainshock can experience a significant increment in their inter-story drift demands due to the occurrence of an aftershock.

키워드

참고문헌

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피인용 문헌

  1. The influences of aftershocks on the constant damage inelastic displacement ratio vol.79, 2015, https://doi.org/10.1016/j.soildyn.2015.08.011
  2. Response to seismic sequences of short-period structures equipped with Buckling-Restrained Braces located on the lakebed zone of Mexico City vol.137, 2017, https://doi.org/10.1016/j.jcsr.2017.06.010
  3. Seismic response of RC frames under far-field mainshock and near-fault aftershock sequences vol.72, pp.3, 2019, https://doi.org/10.12989/sem.2019.72.3.395
  4. Performance evaluation of buckling-restrained braced frames under repeated earthquakes vol.19, pp.1, 2014, https://doi.org/10.1007/s10518-020-00983-0