大跨度斜拉桥粘滞阻尼器抗震性能分析

Analysis on fluid viscous damper seismic performance of large-span cable-stayed bridge

对大跨度斜拉桥进行了地震非线性动力时程响应分析,通过改变阻尼器参数,取得了不同阻尼特性下结构的响应特征,并对比选出了最合适的阻尼特性参数,为同类型桥梁的地震减隔震分析提供借鉴。

The paper carries out seismic non-linear dynamic time-history response analysis of large-span cable-stayed bridge. Through changing damper parameters,it obtains structural response performance under different damper features,and finally achieves appropriate damper parameters through comparative analysis,which has provided some guidance for similar bridge seismic reduction and isolation.