| Issue |
E3S Web Conf.
Volume 165, 2020
2020 2nd International Conference on Civil Architecture and Energy Science (CAES 2020)
|
|
|---|---|---|
| Article Number | 04053 | |
| Number of page(s) | 4 | |
| Section | Civil, Architectural Engineering | |
| DOI | https://doi.org/10.1051/e3sconf/202016504053 | |
| Published online | 01 May 2020 | |
Vibration response of railway cable-stayed bridges under high-speed train braking loads
College of Environment and Civil Engineering, Chengdu University of Technology, Chengdu, China
* Corresponding author: longl@cdut.edu.cn
With the increase of the running speed of high-speed trains, the longitudinal vibration of the long span railway cable-stayed bridge under train loads has increased significantly. And the probability of high-speed train braking is greater than earthquake. The excessive vibration response will affect the serviceable of the cable-stayed bridge. Fluid viscous dampers (FVDs) and elastic cables (ECs) which are widely used in seismic design of the bridge are adopted to control the longitudinal vibration response of the cable-stayed bridge induced by train braking loads. The influence of the design parameters of FVDs and ECs on the response of the bridge is studied. And the effectiveness of FVDs and ECs on mitigating the longitudinal response of the bridge is also discussed. It is found that installing FVDs and ECs between the deck and the tower is very efficient in reducing the longitudinal vibration of the railway cable-stayed bridge subjected to train braking loads, especially the longitudinal displacement of the deck and the bending moment of the tower.
© The Authors, published by EDP Sciences, 2020
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