Spatial Variation of Seismic Ground Motions: Modeling and Engineering Applications
Spatial Variation of Seismic Ground Motions: Modeling and Engineering Applications
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发表时间：
2009-04
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通讯作者：
A. Zerva
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作者：
A. Zerva
介绍空间变异性的随机估计基本定义随机过程双变量随机过程相干性多变量随机过程和随机场空间变异性的参数建模参数功率谱密度空间变异性参数相干性的早期研究参数相干性建模参数互谱模型空间变异性的物理特征频率-波数(F-K)谱振幅和相位变异性地震地面应变传播速度估计地表应变场精度单站应变估计非一致性与传播效应从阵列数据估计位移梯度在估计地震地面应变随机振动中的考虑。支承激励随机振动导论离散参数系统分布参数系统均方根生命线响应分析附加随机振动考虑空间变量地震动模拟随机过程模拟随机场模拟多变量随机向量过程条件模拟地震动条件模拟随机过程处理模拟加速度时间序列应用实例工程应用，垫层、刚性基础、大坝悬索桥和斜拉桥公路桥部分结束语参考
Introduction Stochastic estimation of spatial variability Basic definitions Stochastic processes Bi-variate stochastic processes Coherency Multi-variate stochastic processes and stochastic fields Parametric modeling of spatial variability Parametric power spectral densities Early studies on spatial variability Dependence of coherency on physical parameters Parametric coherencymodeling Parametric cross spectrum modeling Physical characterization of spatial variability Frequency-wavenumber (F-K) spectra Amplitude and phase variability Seismic ground-surface strains Semi-empirical estimation of the propagation velocity Estimation of the surface strain field Accuracy of single-station strain estimation Incoherence vs propagation effects in surface strains Displacement gradient estimation from array data Considerations in the estimation of seismic ground strains Random vibrations for multi-support excitations Introduction to random vibrations Discrete-parameter systems Distributed-parameter systems Analysis of rms lifeline response Additional random vibration considerations Simulations of spatially variable ground motions Simulation of random processes Simulation of random fields Simulation ofmulti-variate stochastic vector processes Conditionally simulated ground motions Conditional simulation of random processes Processing of simulated acceleration time series Example applications Engineering Applications Large, mat, rigid foundations Dams Suspension and cable-stayed bridges Highway bridges Some concluding remarks References