Damage Location of Beam Railway Bridges Using Rotation Responses under Moving Train Loads

2021 ◽  
Vol 35 (6) ◽  
Author(s):  
Yuan-Zheng Liu ◽  
Ting-Hua Yi ◽  
Dong-Hui Yang ◽  
Hong-Nan Li
Keyword(s):  
Railway Bridges ◽  
Damage Location ◽  
Moving Train

Damage Location Identification of Railway Bridge under moving Train

2013 ◽  
Vol 101 (15) ◽  
pp. 1-8
Author(s):  
Deshan Shan ◽  
Junying Zhang ◽  
Qiao Li ◽  
Tiande Lv ◽  
Zhen Huang
Keyword(s):  
Railway Bridge ◽  
Damage Location ◽  
Location Identification ◽  
Moving Train

Vibration of railway bridges under a moving train by using bridge-track-vehicle element

2001 ◽  
Vol 23 (12) ◽  
pp. 1597-1606 ◽  
Author(s):  
Y.S. Cheng ◽  
F.T.K. Au ◽  
Y.K. Cheung
Keyword(s):  
Railway Bridges ◽  
Moving Train

DYNAMIC PERFORMANCES OF A RAILWAY BRIDGE UNDER MOVING TRAIN LOAD USING EXPERIMENTAL MODAL PARAMETERS

2010 ◽  
Vol 10 (01) ◽  
pp. 91-109 ◽  
Author(s):  
SUNG-IL KIM ◽  
NAM-SIK KIM
Keyword(s):  
Test Specimen ◽  
Damping Ratio ◽  
Dynamic Performance ◽  
Performance Estimation ◽  
Modal Testing ◽  
Modal Parameters ◽  
Vibration Exciter ◽  
Railway Bridge ◽  
Railway Bridges ◽  
Moving Train

In the design of railway bridges, it is necessary to be able to predict their dynamic behavior under a moving train load so as to avoid a resonance state from repetitive moving axle forces with uniform intervals. According to design trends, newly developed girder bridges weigh less and have longer spans. Since the dynamic interaction between bridge superstructures and passing trains is one of the critical issues concerning such railway bridges that are designed with greater flexibility, it is very important to evaluate the modal parameters of newly designed PSC girders before carrying out dynamic analyses. In this paper, a full scale incrementally prestressed 25-meter long concrete girder was fabricated as a test specimen and modal testing was performed at every prestressing stage in order to evaluate the modal parameters, including the natural frequency and the modal damping ratio. Young's modulus was also obtained from the global stiffness of the test specimen. During the modal testing, a digitally controlled vibration exciter and an impact hammer were applied in order to obtain precise frequency response functions, and the modal parameters were evaluated at various construction stages. With the availability of reliable properties from the modal experiments, dynamic performance estimation of a PSC girder railway bridge during the passage of a moving train can be carried out.

A Versatile 3D Vehicle-Track-Bridge Element for Dynamic Analysis of the Railway Bridges under Moving Train Loads

2019 ◽  
Vol 19 (04) ◽  
pp. 1950050 ◽  
Author(s):  
Xiang Xiao ◽  
Wei-Xin Ren
Keyword(s):  
Virtual Work ◽  
Interaction Analysis ◽  
Equations Of Motion ◽  
Time Integration ◽  
Contact Forces ◽  
Dynamic Responses ◽  
Railway Bridges ◽  
Beam Elements ◽  
Track Bridge ◽  
Moving Train

There has been a growing interest to carry out the vehicle–track–bridge (VTB) dynamic interaction analysis using 2D or 3D finite elements based on simplified wheel–rail relationships. The simplified or elastic wheel–rail contact relationships, however, cannot consider the lateral contact forces and geometric shapes of the wheel and rails, and even the occasional jump of wheels from the rails. This does not guarantee a reliable analysis for the safety running of trains over bridges. To consider the wheel–rail constraint and contact forces, this paper proposes a versatile 3D VTB element, consisting of a vehicle, eight rail beam elements, four bridge beam elements, and continuous springs as well as the dampers between the rail and bridge girder. With the 3D VTB element matrices formulated, a procedure for assembling the interaction matrices of the 3D VTB element is presented based on the virtual work principle. The global equations of motion of the VTB interaction system are established accordingly, which can be solved by time integration methods to obtain the dynamic responses of the vehicle, track and bridge, as well as the stability and safety indices of the moving train. Finally, an illustrative example is used to verify the proposed the versatile 3D VTB element for the dynamic interactive analysis of railway bridges under moving train loads.

Damage Detection in Railway Bridges Under Moving Train Load

2017 ◽  
pp. 349-354 ◽  
Author(s):  
Riya C. George ◽  
Johanna Posey ◽  
Aakash Gupta ◽  
Suparno Mukhopadhyay ◽  
Sudib K. Mishra
Keyword(s):  
Damage Detection ◽  
Railway Bridges ◽  
Moving Train

Railway Bridges and Accidents

1859 ◽  
Vol 1 (7) ◽  
pp. 106-106
Keyword(s):  
Railway Bridges

Assessment of Resonance Effects on Railway Bridges under Moving Loads

2017 ◽  
Vol 5 (4) ◽  
pp. 38
Author(s):  
Gharad A.M. ◽  
Sonparote R. S. ◽  
◽  
Keyword(s):  
Moving Loads ◽  
Railway Bridges ◽  
Resonance Effects

Effect of the Rail Track on Dynamic Behavior of the Base-Isolated Railway Bridges

2005 ◽  
Vol 90 (12) ◽  
pp. 25-32 ◽  
Author(s):  
Akihiro Toyooka ◽  
Manabu Ikeda ◽  
Hirokazu Iemura ◽  
Kiyomitsu Murata ◽  
Atsushi Ichikawa
Keyword(s):  
Dynamic Behavior ◽  
Railway Bridges ◽  
Rail Track

Managing Ageing Railway Bridges in High Axle Load Environments

2002 ◽  
Vol 86 (13) ◽  
pp. 43-50
Author(s):  
Gerard Chitty ◽  
Peter Bartle
Keyword(s):  
Railway Bridges

The Long-Span High-Speed Railway Bridges in China

2016 ◽  
Vol 106 (14) ◽  
pp. 14-15
Author(s):  
Zongyu GAO
Keyword(s):  
High Speed ◽  
High Speed Railway ◽  
Railway Bridges ◽  
Long Span
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