Dynamical Analysis of a Cable-Stayed Bridge with One Tower

With a double-beam calculation model, the study on dynamic characteristics of the cable-stayed bridge with one tower was carried out. Modal analysis and space nonlinear time history analysis were adopted.The latter used EI-Centro earthquake wave, it acted on the structure from three different direction:transverse, longitudinal and vertical respectively. From these analysis, dynamic characteristics of the bridge are acquired, internal force and displacement in critical position of the beam and tower are given too. At the same time, wind-resistant stability of the bridge is also calculated through a experienced formula. All the results provide important reference for design and construction.