2 . studying the effects of soft layer and hard layer on seismic response . we further investigate the behavior of both the soft layers and the hard layers with the shear wave speed less than 500m / s effecting on the maximum acceleration and the shape of response spectrum , respectively 本文基于已有研究結(jié)果進(jìn)一步分析了軟夾層對(duì)場(chǎng)地地震動(dòng)譜形狀和峰值加速度的影響,以及剪切波速小于500m s的硬夾層對(duì)場(chǎng)地地震動(dòng)譜形狀和峰值加速度的影響,統(tǒng)計(jì)分析了軟、硬夾層對(duì)場(chǎng)地地震反應(yīng)影響的特點(diǎn)規(guī)律和程度。