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- W878114747 abstract "The dynamic behavior of bridges crossed by the Korean High Speed Train (KHST) has been investigated experimentally and theoretically. The bridge is a 2-span continuous concrete box bridge with spans of 40 m length. The KHST considered in this study is composed by two power cars, two motorized cars and sixteen passenger cars (2P+187). For the theoretical study, the KHST has been constituted by a system of articulated bogie coaches, differently from classical trains, and its equation of motion has been derived from the Lagrangian equation considering the motions of the car-body, the bogie frame or chassis, and the axle. The dynamic response of the bridge crossed by moving train has been obtained by iterative predictor-corrector method using Newmark- method. For the experimental study, large amount of sensors and data loggers have been installed on the Yeon-Jae bridge located in the experimental section of the KHST track and tests have been performed. The train adopted for tests is the TGVK imported from France. The basic dynamic characteristics of the train and bridge used in the experimental and theoretical studies are identical. Through this study, significantly amplified dynamic responses compared to static responses of the bridge crossed by trains running at speed close to the critical speed have been obtained. Because of such resonance phenomenon, attention shall be paid about the selection of adequate damping during dynamic analysis of bridges crossed by the KHST. The numerical method technique presented in this study shows reasonable results concerning the dynamic behavior analysis of bridges under trains running at high-speed. In the case of the KHST, train-bridge interaction effects related to the dynamic response of the bridge appeared to be significant at every speed." @default.
- W878114747 created "2016-06-24" @default.
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- W878114747 date "2003-01-01" @default.
- W878114747 modified "2023-09-24" @default.
- W878114747 title "Dynamic Behavior of Concrete Box Girder Bridge due to Riding Korean High-Speed Train" @default.
- W878114747 hasPublicationYear "2003" @default.
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