Influence parameters of additional longitudinal force of continuously welded rails on bridge

ZHAO Zhi-jun; SHAO Tian-bao

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ZHAO Zhi-jun, SHAO Tian-bao. Influence parameters of additional longitudinal force of continuously welded rails on bridge[J]. Journal of Traffic and Transportation Engineering, 2003, 3(3): 32-35.

Citation:

ZHAO Zhi-jun, SHAO Tian-bao. Influence parameters of additional longitudinal force of continuously welded rails on bridge[J]. Journal of Traffic and Transportation Engineering, 2003, 3(3): 32-35.

ZHAO Zhi-jun, SHAO Tian-bao. Influence parameters of additional longitudinal force of continuously welded rails on bridge[J]. Journal of Traffic and Transportation Engineering, 2003, 3(3): 32-35.

Citation:

ZHAO Zhi-jun, SHAO Tian-bao. Influence parameters of additional longitudinal force of continuously welded rails on bridge[J]. Journal of Traffic and Transportation Engineering, 2003, 3(3): 32-35.

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Influence parameters of additional longitudinal force of continuously welded rails on bridge

ZHAO Zhi-jun^1
,,
SHAO Tian-bao²

1.
The Forth Survey and Design Institute of China Railway, Wuhan 430063, China
2.
The Thirteenth Engineering Bureau of China Railway, Changchun 130031, China

More Information

Author Bio:
ZHAO Zhi-jun(1976-), male, associate engineer, 86-27-51156674, recharse@sina.com
Received Date: 2003-02-18
Publish Date: 2003-09-25

Abstract

Abstract

According to the boundary conditions of the influence area ends of additional longitudinal force, this paper studied the influence area length outside bridge in different calculation conditions, analyzed the additional longitudinal force's influence parameters of continuously welded rails on bridge, and clarified the variety rules of influence area length outside bridge, rail's maximum force and maximum displacement.The results indicate that the influence area length is not a fixed value. The maximum force and maximum displacement of rail will decline when longitudinal resistance force, span, span number, inertia moment decline, or pier stiffness increases, at the same time, the probability of rail broken will decline too.The force of abutment or pier will decline when the longitudinal resistance force decline.
- railway engineering,
- continuously welded rails,
- additional longitudinal force,
- influence area length,
- influence parameters,
- maximum force,
- maximum displacement

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References(9)

References

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