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タイトル: | Simulation of building damage distribution in downtown Mashiki, Kumamoto, Japan caused by the 2016 Kumamoto earthquake based on site-specific ground motions and nonlinear structural analyses |
著者: | Sun, Jikai Nagashima, Fumiaki https://orcid.org/0000-0002-9125-5871 (unconfirmed) Kawase, Hiroshi Matsushima, Shinichi https://orcid.org/0000-0001-8240-4305 (unconfirmed) Baoyintu |
著者名の別形: | 長嶋, 史明 川瀬, 博 松島, 信一 |
キーワード: | Subsurface velocity structure Estimated ground motion Construction period Nonlinear structural analysis Damage probability distribution |
発行日: | 13-May-2021 |
出版者: | Springer Nature |
誌名: | Bulletin of Earthquake Engineering |
巻: | 19 |
号: | 9 |
開始ページ: | 3491 |
終了ページ: | 3521 |
抄録: | Most of the buildings damaged by the mainshock of the 2016 Kumamoto earthquake were concentrated in downtown Mashiki in Kumamoto Prefecture, Japan. We obtained 1D subsurface velocity structures at 535 grid points covering this area based on 57 identified velocity models, used the linear and equivalent linear analyses to obtain site-specific ground motions, and generated detailed distribution maps of the peak ground acceleration and velocity in Mashiki. We determined the construction period of every individual building in the target area corresponding to updates to the Japanese building codes. Finally, we estimated the damage probability by the nonlinear response model of wooden structures with different ages. The distribution map of the estimated damage probabilities was similar to the map of the damage ratios from a field survey, and moderate damage was estimated in the northwest where no damage survey was conducted. We found that both the detailed site amplification and the construction period of wooden houses are important factors for evaluating the seismic risk of wooden structures. |
著作権等: | © The Author(s) 2021 This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. |
URI: | http://hdl.handle.net/2433/274612 |
DOI(出版社版): | 10.1007/s10518-021-01119-8 |
出現コレクション: | 学術雑誌掲載論文等 |
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