Dynamic Behavior of Track Bridge on Serviced Long-Span Road/Railway Bridge

Applied Sciences

Sun-Hee Kim¹  Kyu-Yong Lee²  Jung-Youl Choi³  Jee-Seung Chung⁴ 

[1] Safety Engineering, Dongyang University, Yeongju-si 36040, Korea;Department of Architectural Engineering, Gachon University, Seongnam-si 13120, Korea;;Department of Railroad Construction &;Technical Planning &

关键词: structural behavior;    direct fixation track;    numerical analysis;    dynamic;    yeongjong bridge;   

DOI  :  10.3390/app10010148

来源: DOAJ

【 摘 要 】

In this study, we predicted the structural behavior of a track-bridge and a bridge based on the expected increases in future train speeds by modeling the Yeongjong Bridge (a part of the Incheon International Airport Expressway in Korea). To verify the train’s safe operation, we performed a three-dimensional (3D) numerical analysis using full-scale bridge modeling. The rail-girder interaction force generated at one end of the direct fixation track of Yeongjong Bridge during train operations was evaluated by taking field measurements of the vertical displacements of the rail and girder at the center and end of a track girder. We further compared our predictions with various field measurements to evaluate the dynamic behavior of the entire Yeongjong Bridge.

【 授权许可】

Unknown