Linear seismic response analysis of Shandong Bin-Zhou Yellow River highway cable-stayed bridge

Based on the 3-D Penzien model, using ANSYS program, a simplified pile-soil-bridge interaction model for the Shandong Bin Zhou Yellow River Highway cable-stayed bridge is established. The dynamic characteristics of the model with the rigid foundation and the model with consideration of pile-soil-bridge dynamic interaction are analyzed. It shows that the natural frequencies of the structure with consideration of pile-soil-bridge dynamic interaction become smaller. In addition, the linear seismic response analysis is performed by using the response spectrum method, its result shows that the cable-stayed bridge will occur large seismic response and coupled movement under transverse and longitudinal seismic excitation, so it is very important to use 3-D model.