Damage of RC Building Structures due to 2011 East Japan Earthquake
Damage of RC Building Structures due to 2011 East Japan Earthquake
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2011 年东日本地震造成的 RC 建筑结构损坏
DOI：
10.1061/9780784412367.091
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
Kanako Takahashi
中科院分区：
文献类型：
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作者：
M. Maeda;H. Alwashali;Kazuki Suzuki;Kanako Takahashi
本文介绍了2011年日本东部地震对钢筋混凝土建筑结构的调查情况。总的来说，宫城地区的钢筋混凝土结构在地震中表现良好，抗震加固对减轻破坏有一定的效果，但一些抗震加固后的建筑也出现了严重的破坏。计算的抗震能力指数与观测到的震害有很好的相关性。此外，按照现行抗震设计规范设计的建筑，其结构构件的损伤较小。然而，对非结构构件的主要破坏是常见的。作者在宫城县实地调查中观察到的一些典型的破坏。它主要是作为AIJ委员会的一项活动进行的。虽然非结构构件的损毁情况普遍严重，但大部分受海啸影响的RC建筑物均未发现结构构件受损的情况。然而，毁灭性的海啸在一些建筑物中造成了严重的结构破坏。
This paper presented the investigation of reinforced concrete building structures by 2011 East Japan Earthquake. Generally, reinforced concrete structures in Miyagi region performed very well during the earthquake and effect of seismic retrofit was found in mitigation of damage, although severe damage to some seismically retrofitted buildings was noticed. A good correlation was observed between calculated seismic capacity Is-index and observed damage. Moreover, buildings designed according to the current seismic design code had minor damage in its structural members. However, major damage to non structural elements was commonly observed. Some typical damage observed by author’s field survey in Miyagi pref. which is conducted mainly as an activity of the AIJ committee is described. Damage to structural members was not found in most of RC buildings which suffered tsunami, although damage to non structural elements was generally severe. However, severe structural damage induced by devastating tsunami was observed in some buildings.