한국철도학회:학술대회논문집 (Proceedings of the KSR Conference)
- 한국철도학회 2003년도 추계학술대회 논문집(II)
- /
- Pages.442-447
- /
- 2003
온도에 의한 궤도의 후좌굴 거동
Post-Buckling Behavior of the Track due to Temperature
- 발행 : 2003.10.01
초록
The actual behavior of the railroad track structure is suspected to be a complex interaction between the vertical, lateral, longitudinal, and torsional behaviors. A FE program are developed in the present study to be used for extensive nonlinear analysis of the track structures subjected to thermal load. Using the rigorous study on the deformed shape of the rail and tie, and stress resultants, characteristics of the three dimensional behavior are investigated. It is found that the flexural rigidity of the tie and the rotational stiffness of pad-fastener can be affect the behavior of the track structure and the postbuckling behavior in each rail, except lateral behavior, is not same.
키워드