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A Long-Term Friction Test of Bridge Bearings Considering Running Speed of Next Generation Train
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 Title & Authors
A Long-Term Friction Test of Bridge Bearings Considering Running Speed of Next Generation Train
Oh, Soon-Taek; Lee, Dong-Jun; Jun, Sung-Min; Jeong, Shin-Hyo;
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 Abstract
Structural behaviour of PSC box bridge, on which KTX train runs, is analysed up to 500 km/h speed considering 12 stages track irregularity and interaction between bridge and vehicle. To evaluate wheel forces and rotations of vehicle, lateral wheel forces, derail factor and offload factor calculated on the track combining the bridge and 170 m normal track are compared with existing allowed limits. Maximum longitudinal displacement and accumulated sliding distance of the brige bearings for simply supported and 2 span continuous PSC bridges are presented by each running speeds. Long-term friction tests based on EN-1337-2 are conducted between PTFE and DP-mate plates. Finally, the long-term friction tests are proposed to consider the increasing speed of next generation high-speed train.
 Keywords
Bridge bearing of high speed train;Accumulated sliding distance;Long-term friction test;
 Language
Korean
 Cited by
 References
1.
Lee, H. J., Oh, S. T., Lee, D. J. and and Jeong, S. H. (2014), Durability Evaluation of Pre-Stressed Concrete(PSC) Bridge Bearing for High-Speed Railway, Proceedings of the 25th Annual Conference, Korea Society of Steel Construction, Busan, 169-170.

2.
Oh, S. T., and Lee, D. J. (2014a), A Dynamic Analysis of Rotations at the Center of Vehicle Running High Speed KTX Train on the PSC Box Bridges, Journal of the Korea Institute for Structural Maintenance and Inspection, 18(1), 59-67.

3.
Oh, S. T., Lee, D. J., and Lee, J. H. (2013a), Dynamic Analysis of Wheel Forces of KTX Vehicle Running with High-Speed on the PSC Bridge, Journal of KOSHAM, 13(5), 1-7.

4.
Oh, S. T., Lee, D. J., Park, K. R., and Jeong, S. H. (2014b), Durability Evaluation of Pre-Stressed Concrete (PSC) Bridge Friction Bearing for High-Speed Railway, Proceedings of the 25th Annual Conference, Korea Institute for Structural Maintenance and Inspection, JeJu, 18(2), 436-438.

5.
Oh, S. T., Lee, D. J., Yeon, J. S., Kim, Y. S. and Jeong, S. H. (2013b), Dynamic Bearing Behaviour Analysis of PSC Box Bridges for KTX, Proceedings of the 25th Annual Conference, Korea Institute for Structural Maintenance and Inspection, Yangyang, 17(2), 711-712.

6.
Oh, S. T., Lee, D. J., Yeon, J. S., Lee, H. J. and Jeong, S. H. (2013c), Dynamic Behaviours of the Two-Span Continuous PSC Box Bridge with 40m Span for KTX Vehicle, Proceedings of the 25th Annual Conference, KSR2013A032, the Korean Society for Railway, Daegu, 130-132.