Seismic Risk Assessment of Urban Lifelines under System Interactions

系统相互作用下城市生命线地震风险评估

基本信息

批准号：
03452201
负责人：
KAMEDA Hiroyuki
金额：
$ 3.58万
依托单位：
KYOTO UNIVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (B)
财政年份：
1991
资助国家：
日本
起止时间：
1991 至 1992
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-03452201/
关键词：
lifeline system interaction seismic risk large system demand curves habitat space transportation system microzoning 地震被害の相互連関都市地震防災

项目摘要

The results study are summarized as folloes.(1) Case histories of lifeline system interaction under carthquakes have been studies. Their categorization was performed, from which major issues for protection of entire urban lifeline systems were proposed.(2) Analytical procedure was developed for seismic risk assessment of compound lifeline systems under functional damage propagation. Its usefulness was demonstrated through a case study.(3) An algorithm was developed for seismic risk assessment of large-scale lifeline networks. A fuzzy logic methodology was added to the existing probabilistic model in order to incorporate non-numerical information.(4) An evaluation scheme was developed for the post-earthquake performance of lifeline systems by combining demand curves (psychological measure) and restoration curves (engineering measure).(5) basic aspects were investigated as to the seismic safety of habitat space with emphasis on the lifeline damage and its relation to the failure of non-structural elements and over-turn of furnitures.(6) Case history was investigated as to the lifeline damage and seismic reliability of residential buildings. The case of the Loma Prieta Earthquake was studied extensively.(7) The effects of the Loma Prieta Earthquake on the Bay Area transportation systems was analyzed by using a traffic-flow network theory and model choice theory. Emphasis was placed on the interaction between the highway network and BART.(8) As a useful method of seismic microzonation for lifeline systems, a frequency dependent linearization technique was developed.

研究结果总结如下：(1)研究了地震下生命线系统相互作用的实例。对其进行分类,并提出保护整个城市生命线系统的主要问题。(2)建立了功能损伤传播下复合生命线系统地震风险评估的分析程序。通过案例研究证明了其实用性。(3)开发了大规模生命线网络地震风险评估算法。在现有的概率模型中加入模糊逻辑方法，以纳入非数值信息。(4)结合需求曲线(心理测量)和恢复曲线(工程测量)，制定了生命线系统震后性能评估方案。（5）对居住空间的地震安全性进行了基本方面的调查，重点是生命线损坏及其与非结构元件失效和家具翻倒的关系。（6）对案例历史进行了调查住宅建筑的生命线损伤和抗震可靠性。对洛马普列塔地震的案例进行了广泛的研究。(7)运用交通流网络理论和模型选择理论分析了洛马普列塔地震对湾区交通系统的影响。重点放在高速公路网络和 BART 之间的相互作用上。(8) 作为生命线系统地震微区划的一种有用方法，开发了频率相关线性化技术。