Verification of predicted non-linear site response during the 1995 Hyogo-Ken Nanbu earthquake
Verification of predicted non-linear site response during the 1995 Hyogo-Ken Nanbu earthquake
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1995 年兵库县南部地震期间预测的非线性现场响应的验证
DOI：
10.1016/s0267-7261(00)00099-3
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发表时间：
2000
影响因子：
4
通讯作者：
S. Matsuda
中科院分区：
文献类型：
--
作者：
M. Kawano;K. Asano;H. Dohi;S. Matsuda
通过对1995年兵库县南部地震神户市6个测点地面运动的同步模拟试验，预测了表层土层的线性和非线性响应。应用总应力分析方法和有效应力分析方法对PIS和RKI场地包括液化现象在内的预测非线性动力行为进行了粗略和详细的验证。在预测的地震动能成功模拟非线性范围内的加速度时程和反应谱的情况下，研究了PIS场地在地震过程中的剪切应变沿深度的分布、超孔隙水压力与初始有效应力的比值、液化强度参数与初始有效应力的比值以及应力-应变曲线。
The linear and non-linear responses of surface soil layers have been predicted through the simultaneous simulation test against the observed ground motions at the six sites in Kobe City during the 1995 Hyogo-ken Nanbu earthquake. The total stress analysis method and the effective stress analysis method have been applied for the rough and detailed verification of the predicted non-linear dynamic behavior at the PIS and RKI sites including the liquefaction phenomenon. The shear strain distribution along depth, the ratio of excess pore water pressure to initial effective stress, the liquefaction strength parameters to initial effective stress, and the stress–strain curve during the earthquake at the PIS site have been investigated when the predicted ground motion could simulate successfully the observed acceleration time histories and response spectra in the non-linear range.