Study of Options for Suppressing Transverse Vibration on Deck Type Steel Plate Girder Railway Bridge

Based on qualitative analysis and comparison of several options for suppressing transverse vibration on deck type steel plate girder of railway bridge, conclusions are made as follows: with static reinforcing, the vibration amplitude can be suppressed to some extent, but quasi resonance of the bridge can not be avoided, moreover, the construction is inconvenient and costly. With option of two bridge connection, the effectiveness of vibration suppression is clear (the damping ratio approaches 50%) and it is fairly economic and easy, however, the quasi resonance of the bridge can not be avoided either. With dynamic option (MTMD option), the quasi resonance of the bridge can be effectively avoided (the damping ratio is up to 51.38% as tested in field), moreover, the construction cost is low, and the construction is simply and convenient.