【摘要】 为了研究竖向地震力作用对钢筋混凝土桥墩时程响应的影响,利用有限元软件Open Sees对不同地震波、长细比及轴压比情况下考虑竖向地震力前后的钢筋混凝土桥墩进行时程分析。对比各个工况下桥墩的时程响应,结果表明:竖向地震力作用对桥墩的时程响应有较大影响。因此在对钢筋混凝土桥墩进行抗震分析时,建议考虑竖向地震力作用。更多还原

【Abstract】 In order to study the effect of vertical earthquake ground motion on time history response of reinforced concrete bridge piers, time history analyses are performed on several conditions, which include only horizontal earthquake ground motion works and horizontal and vertical earthquake ground motion work together on different seismic waves, slenderness ratios and axial compression ratios, using the finite element software Open Sees. Comparing the results of time history response of the bridge pier on these conditions, conclusion can be got that vertical earthquake ground motion has great effect on the time history response of the piers. It is therefore suggested that vertical earthquake ground motion should be considered in the seismic analysis of reinforced concrete bridge piers.更多还原