Abstract
In this paper, the vibration of continuous bridges subjected to the passage of high-speed trains is studied. Only the bridges with uniform spans are considered and the train moving over a bridge is modeled as a series of moving loads. According to the resonant formula of simple beams to moving loads, the effect of multiple resonant peaks for continuous bridges subjected to high-speed trains can be determined by analogy method. Based on the finite element method, the effect of the number of spans on the impact response of the continuous beams is presented. The results show that the more the number of spans of the continuous beam, the smaller the impact response is for the displacement.
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