Vibration of Long-Span & High Pier Continuous Rigid-Frame Bridge due to Traffic Load

Abstract:

The bridge vibration problem would be highlighted due to flexibility of bridge when traffic is run on the long-span & high-tower continuous rigid-frame bridge. The finite-element (FE) software of bridge-vehicles coupling vibration theory was utilized to analyze traffic load influence on bridge vibration. It is found that the vehicle accelerations are varied greatly in the middle of mid-span and edge of side-span and vehicle bodies are plunged. According to the evaluating indicator of comfort level, people feel sea-sickness when vehicles run in design speed with fundamental frequency. Due to fundamental frequency of body in different speed, the sea-sickness feel will be stronger with lower speed. The impact action can be decreased by the increase number of vehicle-line load, and it is affected by the distance of vehicle-line load.

• Periodical: Applied Mechanics and Materials (Volumes 353-356)
• Pages: 3288-3293
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.353-356.3288
• Online since: August 2013
• Authors: Dong Huang Yan, Si Wei Hong, Ming Yuan
• Keywords: Bridge Engineering, Comfort Level, Coupling Vibration Theory of Traffic-Bridge, Fundamental Frequency, Long-Span High-Tower Continuous Rigid-Frame Bridge, Vibration due to Traffic

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