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

(1)本研究提出了一种利用有限位置遥测地震仪观测数据估算任意位置地震动的方法。在该方法中，将形状插值函数应用到地震地震动的估计方法中。并通过实际数据对估计精度进行了验证。(2)提出了一种考虑液化现象的生命线系统损伤位置数估算方法。液化面积和生命线设施的损坏数量可以通过为此目的开发的PC计算机程序来综合表示。(3)提出了一种利用特定台站记录的地震地震动功率谱估计任意位置地震地震动功率谱的随机插值方法。该方法是在时间-频率-时间滞后关系的背景下合成的。(4)本研究开发了局部识别技术，可在土层的次表层局部部分估计土体的动力特性，如横波速度和质量因子。(5)提出了一种考虑剪切模量和阻尼对地震动放大频率影响的多层地基等线性化地震反应分析方法。

(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.