Development of Monitoring System in Seismic Groung Motion for Real-time Damage Grasping

地震实时损伤掌握监测系统开发

• 批准号: 06302045
• 负责人: TAKADA Shiro
• 金额: $ 3.14万
• 依托单位: Kobe University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 1994
• 资助国家: 日本
• 起止时间: 1994 至 1996
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-06302045/
• 关键词: seismic monitoring; estimation of motion; interpolating function; stochastic interpolation; response analysis of ground; localized idetification; リアルタイム被害推定法; 都市防災

(1) This research proposes a method estimate seismic ground motions at arbitrary locations by using remote monitoring seismograph data observed at limited locations. In this proposed method, the shape interpolating function is applied to the estimation method of seismic ground motions. In addtion, We inverstigate the estimeting accuracy by practical data.(2) This research shows a methodology to estimate the number of damaged locations of lifeline systems taking consideration of liquefaction phenomena. The liquefaction area and the number of damages to lifeline facilities can be synthetically indicated by a PC computer program developed for the present purpose.(3) A method of stochastic interpolation is presented for estimation of power spectra of earthquake gound motions at any location using recorded motions obtained at specific stations. The method is synthesized in the context of time-frequency-time lag relations.(4) This research has developed the localized indentification technique which can estimate the dynamic soil properties, e.g, S-wave velocity and quality factor, in the local part of subsurface layrs of the layrs of the ground.(5) A method is presented for equi-linearized seismic response analysis of muti-layred ground including frequency-dependent effect of shear modulus and damping on ground motion amplification.

(1)本文提出了一种利用有限地点的遥测地震仪数据估计任意地点地震地面运动的方法。该方法将形状插值函数应用于地震动估计中。此外，还用实际数据对估算精度进行了检验。(2)这项研究显示了一种方法来估计考虑液化现象的生命线系统的损坏位置的数量。编制的微机程序可综合反映液化区范围和生命线设施的破坏数量。(3)本文提出了一种利用特定台站记录的地面运动估计任意地点地震地面运动功率谱的随机插值方法。该方法是综合的时间-频率-时间滞后关系的上下文中。(4)本研究发展了局部识别技术，可在地层的局部次表层估计土的动力特性，如横波速度和品质因子。(5)本文提出了一种考虑剪切模量和阻尼对地震动放大系数的频率效应的多层地基等线性化地震反应分析方法。

项目成果

Morikawa, H.and Kameda, H.: "Theory of Conditional Random Fields and Its Engineering Application." UEHR Report, Urban Earthquake Hazard Research Center, Disaster Prevention Research Institute, Kyoto University. (1996)

Morikawa, H. 和 Kameda, H.：“条件随机场理论及其工程应用”。

高田至郎: "阪神・淡路島大震災誌" 朝日新聞社, 733 (1996)

高田四郎：《阪神淡路岛大地震实录》《朝日新闻》，733（1996）

林春男: "情報システム-防災CALSの確立-" 自然災害科学. 15. 93-102 (1996)

Haruo Hayashi：“信息系统-灾害预防CALS的建立-”自然灾害科学。15. 93-102 (1996)

川上英二: "Simulation of Space-Time Variation of Earthquake Ground Motion Including Oberved Time History Record" Eleventh World Conference on Earthquake Engineering. 908. 57-66 (1996)

Eiji Kawakami：“包括观测到的时间历史记录的地震地面运动时空变化的模拟”第十一届世界地震工程学会议。908. 57-66 (1996)。

佐藤忠信: "AL法の確率応答計算への拡張とその地盤震動解析への応用" 土木学会論文集. 5131-31. 517-522 (1995)

Tadanobu Sato：“AL 方法对随机响应计算的扩展及其在地面振动分析中的应用”，日本土木工程师学会汇刊 5131-31 (1995)。