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Study on Information and Analysis Network on 3-Dimensional Ground Structure and Strong Motion Characteristics in Tohoku Urban Areas

东北城市地区三维地面结构及强运动特征信息与分析网络研究

基本信息

批准号：
10680443
负责人：
SHIBATA Akenori
金额：
$ 0.77万
依托单位：
Tohoku Bunka Gakuen University (1999)Tohoku University (1998)
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
1998
资助国家：
日本
起止时间：
1998 至 1999
项目状态：
已结题

项目摘要

In this project, information on the ground structure of Tohoku city areas as well as strong ground motions in Tohoku district was assembled to be used for the comparison between the recorded or measured data and the analyzed results. Various prediction methods of strong ground motions and damage were developed and tested against the phenomena by actual earthquakes.Shibata investigated the prediction method for the maximum ground motion intensity expected in a given period based on the local seismic activity. Also, the probabilistic prediction method of vulnerability curves of building groups was investigated.Motosaka estimated the ground structure on Sendai city by the H/V spectrum technique using micro-tremor data and predicted the distribution of ground motion intensity by a hypothetical near-field earthquake of M=7.2 under Sendai city (Rifu-Nagamachi Fault).Sibuya studied the seismic resistance capacity and ultimate strength property of a 3-story RC building considering member strength property.Nogoshi investigated the 3-dimensional ground structure of Akita city and found the correlation between the damage of wooden houses and the inclination of base rock.Sakajiri estimated the ground structure of Hachinohe city by the spectral ratios from P, S waves and coda obtained at 5 stations.Moro investigated the relation between the dominant period by the micro-tremor measurement and the damage of wooden houses by Sanriu-haruka oki and other severe earthquakes.Kurata studied the ground structure of Koriyama city by H/V spectrum technique using micro-tremor data. Long time variation of micro-tremor characteristics was also studied

在这个项目中，收集了东北地区地面结构和东北地区强地面运动的信息，用于将记录或测量数据与分析结果进行比较。各种强地面运动和破坏的预测方法被开发出来，并针对实际地震进行了检验。柴田研究了基于当地地震活动的在给定时间段内预期的最大地震动烈度的预测方法。利用微震数据对仙台市的地面结构进行了H/V谱估计，预测了仙台市(日福-长町断层)下一次假想的7.2级近场地震的地面运动强度分布。Sibuya研究了考虑构件强度特性的一栋三层RC建筑的抗震能力和极限强度特性。Nogoshi对秋田市的三维地面结构进行了调查，发现了木屋的破坏与基岩倾角之间的关系。Sakajiri根据P、P、P的谱比对八知河市的地面结构进行了评估S在5个台站测得的地震波和尾波。Moro研究了微震测量的优势周期与三柳春香等强震对木屋破坏的关系。栗田利用微震资料用H/V谱技术研究了郡山市的地面结构。还研究了微震特征的长时间变化。