Effects of Cables on Dynamic Properties of Short-span Cable-stayed Bridges

摘要

In this paper, dynamic properties of short-span cable-stayed bridges are analyzed by finite element method with emphasis on effect of cable's tension and cable model. The results show that the cable's tensions have great effect on the dynamic property of the short-span cable-stayed bridges, especially the longitudinal frequency. Single element cable model (SECM) and Multi-element cable model (MECM) are used for frequency domain and response in time domain analysis of short-span cable-stayed bridge. The results for frequency domain are similar for SECM and MECM, while difference in time domain response can be found.