【摘要】 为分析坡地地形对竖向地震动反应谱特性的影响规律,采用有限元数值分析方法,对黏弹性岩质坡地在白噪声输入下的响应进行计算。分析了坡地地形对场地竖向反应谱及谱比的影响,研究了随着坡高及坡角的增加,坡地斜坡段及平台段竖向反应谱及谱比的变化规律,给出了坡地斜坡段及平台段设计竖向地震动放大系数,有关的研究结论可为坡地上工程结构的抗震设计提供参考。更多还原

【Abstract】 In order to discuss the influence of slope terrain on vertical ground motion response spectrum characteristics,the vertical seismic responses of the viscoelastic rock slopes excited by white noise were calculated by using the numerical finite element analysis method.The influences of slope terrain on the vertical ground motion response spectrum were analyzed.It is show that with the increase of the slope degree and slope height,the vertical response spectrum and the vertical spectrum ratios increase.The amplification factors of design vertical ground motions for the structures on the slope and the platform of slope terrain are suggested.更多还原