Reliability Analysis of Cable-stayed Bridge under Reaction of Seldom Occurred Earthquake

Because of the importance of seismic engineering, a practical cable-stayed bridge under the earthquake reaction is analyzed. The dynamic calculation model of the large-span cable-stayed bridge is created by ANSYS. The reaction of the bridge and the stay cable under seldom occurred earthquake is analyzed. The rationality of its design is checked. The results demonstrate that the failure of the dropped beam in superstructure and the shear failure of the bridge tower and pier can not occur under the seismic design grade specified by seismic code. The emergency capacity of the cable is enough in the safety standards. The results demonstrate that the design of the large-span cable-stayed bridge is reasonable.