Dynamic behavior of two-span continuous concrete bridges under moving high-speed train

2004 ◽  
Vol 82 (4-5) ◽  
pp. 463-474 ◽  
Author(s):  
J.W. Kwark ◽  
E.S. Choi ◽  
Y.J. Kim ◽  
B.S. Kim ◽  
S.I. Kim
Author(s):  
Chang-Sung Jeon ◽  
Young-Guk Kim ◽  
Joon-Hyuk Park ◽  
Seog-Won Kim ◽  
Tae-Won Park

Author(s):  
Sergey Shkurnikov ◽  
Olga Morozova

Objective: Due to the lack of global experience of holding on one track high-speed passenger trains (moving at a speed up to 400 km/h), high-speed passenger trains (moving at a speed up to 250 km/h) and special freight trains (accelerating to a speed of more than 200 km/h), the only possible way of studying the influence of a train on a track is computer simulation modeling. The analysis of the existing computer programs was carried out and the most effective programme for the solution of combined train movement was selected. Methods: Simulation modeling was applied. On the basis of the obtained model the possibility of “Universal mechanism” software practical application was considered. Results: A test simulation model of a high-speed train carriage was developed in “Universal mechanism” software application. Preliminary results showed the possibility of its usage for the study of a high-speed train and track interaction. Practical importance: Modern computer technologies make it possible to solve the tasks of dynamic interaction with a high degree of accuracy. Among the variety of software used for the study of dynamic behavior of a railway vehicle in Russia, “Universal mechanism” software application is of wide popularity and may be used for the study of dynamic behavior of different types of trains on railway tracks of different plans and profiles.


2000 ◽  
Vol 16 (18) ◽  
pp. 629-634
Author(s):  
Sungil KIM ◽  
Jongwon KWARK ◽  
Sungpil CHANG

2014 ◽  
Vol 62 (1) ◽  
pp. 165-179 ◽  
Author(s):  
M. Podworna ◽  
M. Klasztorny

Abstract A new series-of-types of single-span simply-supported railway composite (steel-concrete) bridges, with a symmetric platform, has been designed according to the Polish bridge standards. The designed bridges/viaducts are located on the main railways of the classification coefficient k = +2. A ballasted track structure adapted to high operating speeds has also been designed. The ultimate limit states and the limit states corresponding to the bridges undertaken are collected and discussed. The bridges have been designed in accordance with contemporary art engineering, with geometric and material optimization, avoiding overdesign. A new methodology of numerical modelling and simulation of dynamic processes in composite bridge/ballasted track structure/high speed train systems, developed in Part 2 and Part 3, has been applied and implemented in a problem-oriented computer programme. A new approach to predicting forced resonances in those systems is formulated and tested numerically. It has been proved that in the case of typical structural solutions of bridges and ballasted track structures, it is necessary to introduce certain limitations for operating speeds of trains


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