Strong-motion characteristics and visual damage assessment around Seismic stations in Kathmandu after the 2015 Gorkha, Nepal, Earthquake

Subeg Bijukchhen, Nobuo Takai, Michiko Shigefuji, Masayoshi Ichiyanagi, Tsutomu Sasatani

研究成果: ジャーナルへの寄稿学術誌査読

7 被引用数 (Scopus)

抄録

A rapid visual damage assessment of buildings around four strong-motion seismic stations in Kathmandu Valley was carried out after the damaging Gorkha, Nepal earthquake (Mw7.8) of 25 April 2015. The waveforms of the main shock recorded at these stations were compared with the damage to buildings around the stations. The damage was found to be related to strong-motion characteristics of the earthquake. A dominance of long-period oscillation could be observed in the records. The damage to low-rise buildings in the valley was less than anticipated from an earthquake of this magnitude given that the majority of buildings were built without proper engineering consideration. The acceleration response spectra of one of the sedimentary sites show high response in the 1–2 s period range, and nearly 10% of the buildings, which were all low-rise, suffered damage around this site.

本文言語英語
ページ(範囲)S219-S242
ジャーナルEarthquake Spectra
33
Special issue 1
DOI
出版ステータス出版済み - 12月 2017

!!!All Science Journal Classification (ASJC) codes

  • 地盤工学および土木地質学
  • 地球物理学

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