Observations of damage to buildings from M w 7.6 Padang earthquake of 30 September 2009
Observations of damage to buildings from M w 7.6 Padang earthquake of 30 September 2009
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2009 年 9 月 30 日巴东 7.6 级地震对建筑物造成的损害观察
DOI：
10.1007/s11069-012-0164-y
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发表时间：
2012
期刊：
影响因子：
3.7
通讯作者：
Wilkinson S
中科院分区：
文献类型：
--
作者：
Wilkinson S
2009年9月30日当地时间下午5时16分(协调世界时上午10时16分)，西苏门答腊岛巴东近海发生里氏7.6级大地震。本文介绍了一次勘察任务的观察结果，该任务调查了受影响地区内的结构、基础设施和岩土结构的性能。除了介绍在访问中所作的详细观察外，还介绍了关于结构为何失败和该区域建筑实践中的缺陷的见解。考虑到该地区的地震风险很高，而且地震空隙表明可能会发生另一场8.7级以上的地震，这些观测结果尤其重要。这场地震的重要特征之一是在帕里亚曼地区发生了一些极大的破坏性山体滑坡。这些山体滑坡不仅范围广，而且致命性极高。地震的另一个关键特征是倒塌的政府大楼数量惊人地多。文章最后提出了一些建议，既可用于受损结构的重建，也可用于现有结构和岩土工程特征的危险评估。
On 30 September 2009 at 05:16 pm local time (10:16 am UTC), a major earthquake registering a magnitudeMw7.6 occurred off the coast of Padang in West Sumatra. This paper presents the observations from a reconnaissance mission that investigated the performance of structures, infrastructure and geotechnical structures within the affected region. As well as presenting the detailed observations made on the mission, insights as to why structures failed and deficiencies in the construction practices of the region are also presented. Considering the high seismic risk of this area and that seismic gaps suggest another earthquake with a magnitude greater than 8.7 may occur, these observations are particularly significant. One of the vital features of this earthquake was a number of very large and devastating landslides that occurred in the district of Pariaman. These landslides were not only extensive, but had an extremely high lethality. Another key feature of the earthquake was the surprisingly high number of government buildings that collapsed. The paper concludes by presenting a number of recommendations for both the rebuilding of failed structures as well as for hazard assessments of existing structures and geotechnical features.