【摘要】 收集、整理2011年3月11日地震主震及其4月7日余震中日本东北新干线高架桥的破坏资料,筛选日本东北新干线沿线5 km范围内的K-net与Ki K-net强震动观测台站,选取加速度峰值、谱烈度、阿里亚斯烈度、累积绝对速度、累积能量变化率作为地震动参数研究对象,基于强震动观测台站计算得到的各地震动参数值,分析地震动参数与高架桥结构地震破坏变化和破坏分布的关系。研究结果表明,阿里亚斯烈度和累积能量变化率在结构发生破坏或结构破坏分布密度发生改变时,其地震动参数值会发生剧烈的变化,这表示阿里亚斯烈度和累积能量变化率对结构破坏的变化非常敏感,且能够反映结构破坏的分布趋势,可以推荐作为高速铁路在地震时的运行控制用地震动参数。更多还原

【Abstract】 Collecting and sorting the data of Japanese Tohoku Shinkansen viaduct column damage distribution in the2011 magnitude 9. 0 Tohoku-Oki,Japan,Earthquake and its aftershock. Selecting Strong motion Stations along Tohoku Shinkansen within 5 km to research peak ground acceleration,spectral intensity,Arias intensity,Cumulative absolute velocity and cumulative differential of energy as the ground motion parameters. The relationships between ground motion parameters and the earthquake damage distribution were presented,based on the value of ground motion parameters. The results show that Arias Intensity and Cumulative Differential of Energy were sensitive to the change of the structure damage and can reflect the tendency of damage distribution,while the structure damage or structural damage distribution density changes. It is recommended that Arias intensity and cumulative differential of energy are the operation control strong motion parameters during earthquake.更多还原