Dynamic Analysis of Train-Bridge System Under Beam Deformation Induced by Concrete Creep and Temperature Effect

2017 ◽  
pp. 537-580
Author(s):  
He Xia ◽  
Nan Zhang ◽  
Weiwei Guo
Keyword(s):  
Dynamic Analysis ◽  
Temperature Effect ◽  
Concrete Creep ◽  
Bridge System

Dynamic analysis of coupled train–track–bridge system subjected to debris flow impact

2018 ◽  
Vol 22 (4) ◽  
pp. 919-934 ◽  
Author(s):  
Xun Zhang ◽  
Zhipeng Wen ◽  
Wensu Chen ◽  
Xiyang Wang ◽  
Yan Zhu
Keyword(s):  
Debris Flow ◽  
Dynamic Analysis ◽  
High Speed ◽  
Impact Load ◽  
Dynamic Responses ◽  
Train Track ◽  
Running Safety ◽  
Track Bridge ◽  
Safety Indices ◽  
Bridge System

With the increasing popularity of high-speed railway, more and more bridges are being constructed in Western China where debris flows are very common. A debris flow with moderate intensity may endanger a high-speed train traveling on a bridge, since its direct impact leads to adverse dynamic responses of the bridge and the track structure. In order to address this issue, a dynamic analysis model is established for studying vibrations of coupled train–track–bridge system subjected to debris flow impact, in which a model of debris flow impact load in time domain is proposed and applied on bridge piers as external excitation. In addition, a six-span simply supported box girder bridge is considered as a case study. The dynamic responses of the bridge and the running safety indices such as derailment factor, offload factor, and lateral wheel–rail force of the train are investigated. Some influencing factors are then discussed based on parametric studies. The results show that both bridge responses and running safety indices are greatly amplified due to debris flow impact loads as compared with that without debris flow impact. With respect to the debris flow impact load, the boulder collision has a more negative impact on the dynamic responses of the bridge and train than the dynamic slurry pressure. Both the debris flow impact intensity and train speed determine the running safety indices, and the debris flow occurrence time should be also carefully considered to investigate the worst scenario.

Dynamic analysis of the train-bridge system considering the non-linear behaviour of the track-deck interface

2020 ◽  
Vol 220 ◽  
pp. 110980
Author(s):  
L.R. Ticona Melo ◽  
J. Malveiro ◽  
D. Ribeiro ◽  
R. Calçada ◽  
T. Bittencourt
Keyword(s):  
Dynamic Analysis ◽  
Non Linear ◽  
Linear Behaviour ◽  
Bridge System

Dynamic analysis of coupled train - ladder track - elevated bridge system

2013 ◽  
Vol 47 (5) ◽  
pp. 661-678 ◽  
Author(s):  
He Xia ◽  
Yushu Deng ◽  
Chaoyi Xia ◽  
G. De Roeck ◽  
Lin Qi ◽  
...  
Keyword(s):  
Dynamic Analysis ◽  
Elevated Bridge ◽  
Bridge System

Dynamic analysis of train–bridge system and its application in steel girder reinforcement

2001 ◽  
Vol 79 (20-21) ◽  
pp. 1851-1860 ◽  
Author(s):  
H. Xia ◽  
G. De Roeck ◽  
H.R. Zhang ◽  
N. Zhang
Keyword(s):  
Dynamic Analysis ◽  
Steel Girder ◽  
Bridge System

Investigations on the influence of prestressed concrete creep on train-track-bridge system

2021 ◽  
Vol 293 ◽  
pp. 123504
Author(s):  
Ping Xiang ◽  
Wei Huang ◽  
Lizhong Jiang ◽  
Dagang Lu ◽  
Xiang Liu ◽  
...  
Keyword(s):  
Prestressed Concrete ◽  
Train Track ◽  
Concrete Creep ◽  
Track Bridge ◽  
Bridge System

scholarly journals Dynamic Analysis of Coupling Vehicle-Bridge System Using Finite Prism Method

2018 ◽  
Vol 9 (5) ◽  
pp. 359-365 ◽  
Author(s):  
A. T. Saeed ◽  
◽  
Zhongfu Xiang
Keyword(s):  
Dynamic Analysis ◽  
Bridge System
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