钢筋混凝土桥墩非线性地震反应分析

The nonlinear seismic displacement responses of RC bridge piers

采用Takeda滞回曲线模型,对三个不同周期的桥墩,分别输入多条具有相同反应谱的地震波,计算了桥墩的线性和非线性时程响应,通过比较线性和非线性最大地震位移响应发现,在这些地震波作用下,虽然线性位移响应最大值基本相同,但非线性位移响应最大值差别很大。

Some linear and nonlinear time history analyses of three RC bridge piers with Takeda hysteretic model are carried out by the use of large numbers of seismic waves. These seismic waves have the same response spectrum. The linear maximum seismic displacements are the same on the whole for the waves, but the nonlinear maximum seismic displacements have great difference.