Vibration Control of High-Speed Railway Bridges using Viscoelastic Dampers

2009 ◽  
Author(s):  
E. Moliner ◽  
M.D. Martínez-Rodrigo ◽  
J. Lavado
Keyword(s):  
Vibration Control ◽  
High Speed ◽  
High Speed Railway ◽  
Railway Bridges ◽  
Viscoelastic Dampers

scholarly journals Application of viscoelastic dampers for reducing dynamic response of high-speed railway bridges

2020 ◽  
Vol 11 (2) ◽  
pp. 95-106
Author(s):  
Mohamed Tahiri ◽  
Abdellatif Khamlichi ◽  
Mohammed Bezzazi
Keyword(s):  
High Speed ◽  
Contact Point ◽  
Dynamic Performance ◽  
Orientation Angle ◽  
Concrete Bridges ◽  
Bottom Surface ◽  
Vertical Acceleration ◽  
High Speed Railway ◽  
Railway Bridges ◽  
Viscoelastic Dampers

AbstractDue to the extensive development of high-speed railway lines which are operating at increasing velocities, the dynamic performance of railway bridges has become an important issue of scientific research. The aim of this study is to investigate the possibility of reducing the vertical acceleration and displacement of pre-stressed reinforced concrete bridges beams by using passive nonlinear viscoelastic dampers to retrofit them. The proposed solution is based on connecting the dampers directly to the abutments and the bottom surface of the bridge deck with an eccentricity between the neutral axis of the bridge and the contact point of the viscoelastic dampers. First, the dampers are modeled through the concept of linearized fractional derivatives to obtain energetic equivalent linear viscoelastic dampers. Optimization of the configuration of these dampers was performed then as function of the orientation angle and the eccentricity. Considering two bridges having different length that were studied in the literature with other systems of damping, it was found that the best orientation angle of dampers is close to 60°. It was found also that, in order to satisfy Eurocode 1 requirements, the total equivalent damping coefficient for the actual damping system is less than half of that required for systems using auxiliary beam to fix dampers, which indicates higher efficiency of the proposed solution.

Vibration Control of Long-Span High-Speed Railway Bridges under Periodic Moving Loading Using Viscoelastic Damper

2003 ◽  
Vol 87 (10) ◽  
pp. 37-43 ◽  
Author(s):  
Jinkyo F. Choo ◽  
Hyun-Moo Koh ◽  
Soo-Chang Kang ◽  
Byung-Suk Kim
Keyword(s):  
Vibration Control ◽  
High Speed ◽  
Viscoelastic Damper ◽  
High Speed Railway ◽  
Railway Bridges ◽  
Long Span

Numerical Model Updating Technique for Estimating Load Carrying Capacities of High Speed Railway Bridges

2016 ◽  
Vol 106 (8) ◽  
pp. 490-497
Author(s):  
Dong-Uk PARK ◽  
Jae-Bong KIM ◽  
Nam-Sik KIM ◽  
Sung-Il KIM
Keyword(s):  
Numerical Model ◽  
High Speed ◽  
Model Updating ◽  
High Speed Railway ◽  
Railway Bridges ◽  
Load Carrying

Design of High-Speed Railway Bridges with Earthquakes in the United States

2018 ◽  
Vol 29 (1) ◽  
pp. 18-25 ◽  
Author(s):  
Yinghong Cao ◽  
Todd Ude ◽  
Daniel Getter ◽  
Brendan Gill
Keyword(s):  
United States ◽  
High Speed ◽  
The United States ◽  
High Speed Railway ◽  
Railway Bridges
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