Evaluation of Seismic Ground-Motion and Estimation of Seismic Disaster by Using Array Earthquake Observation Network in Kyoto Valley

京都谷地震动评价及地震灾害评估

基本信息

批准号：
10555200
负责人：
SUZUKI Yoshiyuki
金额：
$ 7.94万
依托单位：
KYOTO UNIVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
1998
资助国家：
日本
起止时间：
1998 至 2000
项目状态：
已结题

项目摘要

This study aims to construct methodologies in order to evaluate seismic ground-motions and to estimate seismic damages by making use of the array earthquake observation network in Kyoto area. The results obtained here are summarized as follows:The characteristics of observed seismic ground-motions are influenced by the geological structure of Kyoto valley and the structure of soil-layers at each observation station the array earthquake observation network.The important uncertain parameters in modeling structural systems and seismic excitations are investigated, and they are modeled as random variables. The analytical methods for stochastic identification of structural parameters and stochastic estimation of structural responses from observations of seismic accelerations on ground-structures are studied.In the 1995 Hyougoken-nanbu earthquake and 2000 Tottoriken-seibu earthquake, a large number of buildings were seriously damaged. The seismic damages of wood houses were investigated. In particular, the wood construction methods and techniques were closely examined in Hino-cho, Tottori. It is found that the damages of wood houses are influenced distinguishedly the construction methods of wood houses as well as the characteristics of seismic ground-motions.The prediction and estimation methods for the damages of buildings due to earthquakes were developed on the basis of past earthquake disasters such as the 1995 Hyougoken-nanbu earthquake and 2000 Tottoriken-seibu earthquake. The fragility curves for wood houses are proposed. To establish the prediction and estimation methods for seismic damages of wood houses, there are many uncertainties in structures, in particular, wood houses. Therefore the observation and experimental studies on uncertainties of dynamic properties are needed.

这项研究旨在构建方法，以评估地震地面运动，并通过利用京都地区的阵列地震观察网络来估计地震损伤。此处获得的结果总结如下：观察到的地震地面移动的特征受到京都谷地的地质结构的影响，每个观测站的土壤层的结构阵列地震观察网络。研究了系统和地震激发，并将它们建模为随机变量。研究了结构参数随机鉴定的分析方法，并研究了从地震加速度观察到地面结构的观察结果的结构响应的随机估计。在1995年，Hyougoken-Nanbu地震和2000年Tottoriken-Seibu地震中，大量建筑物受到了严重破坏。研究了木房屋的地震损坏。特别是，在托托里（Tottori）的Hino-Cho中仔细检查了木材的建造方法和技术。发现木房屋的损坏受到区别的影响，是木房屋的建设方法以及地震地面 - 地震的特征。建筑物因地震造成的损害的预测和估计方法是根据过去地震开发的1995年Hyougoken-Nanbu地震和2000年Tottoriken-Seibu地震等灾难。提出了木屋的脆弱曲线。为了建立对木房屋的地震损伤的预测和估计方法，尤其是木制房屋中有许多不确定性。因此，需要对动态特性不确定性的观察和实验研究。