|
|
|
| Analysis of Dynamic Performance of Coastal Railway Bridges |
| WANG De-zhi |
| China Railway Siyuan Survey and Design Group Co. Ltd. , Wuhan, Hubei 430063, China |
|
|
|
|
Abstract Research purposes：The coastal railways of Ningbo-Taizhou-Wenzhou and Wenzhou-Fuzhou are the passenger dedicated lines constructed in the first batch project in China, and now open to traffic. There are lots of the bridges built on soft soil foundation with special and complicated structures for these two railways due to the complicated natural and geographic conditions. The dynamic tests are done to the typical bridge and the comparison is made between the tested results and calculation results for analysis and evaluation of the dynamic performance of the bridge structure.
Research conclusions： From doing the dynamic test to the bridges and making analysis and evaluation of the indexes of dynamic performance of the bridge structure, such as deformation, displacement, natural vibration frequency and acceleration, it is shown the coastal railway bridges are good in lateral and vertical stiffness and the dynamic performance. The Ningbo-Taizhou-Wenzhou and Wenzhou-Fuzhou can meet the requirements of the safety and stability performance for running 120 km/h test freight train, 250 km/h CRH2-010A comprehensive monitoring train and 250 km/h EMU.
|
|
Received: 10 December 2009
|
|
|
|
|
|
[ 1 ] TB 100002.5—2005,铁路桥涵设计基本规范[S].
TB 100002.5—2005, Code for Design of Foundation for Railway Bridges and Culverts[S].
[ 2 ] 铁运函[2004]120, 铁路桥梁检定规范[S].
TY[2004] No.120, Code for Rating Existing Railway Bridges[S].
[ 3 ] 铁建设函[2005] 285号, 新建时速200公里客货共线铁路设计暂行规定 [S].
TJ[2005] No.285, Temporary Design Code for a New 200 km/h Passenger and Freight Railway[S].
[ 4 ] 铁建设函[2005]140号, 新建时速200～250公里客运专线铁路设计暂行规定[S].
TJ[2005] No.140, Temporary Design Code for a New 200-250 km/h Passenger Railway[S].
[ 5 ] 铁建设函[2005] 47号, 新建时速300～350公里客运专线铁路设计暂行规定[S].
TJ[2007] No.47, Temporary Design Code for a New 300-350 km/h Passenger Railway[S].
[ 6 ] 杨宜谦, 孟鑫, 等. 甬台温、温福铁路动态检测报告[R]. 北京:中国铁道科学研究院, 2007.
Yang Yiqian, Meng Xin, et al. Dynamic Detection Report of Ningbo-Taizhou-Wenzhou Railway[J], Beijing: China Academy of Railway Sciences, 2007.
[ 7 ] 杨宜谦, 刘鹏辉, 等. 温福(浙江段、福建段)铁路动态检测报告[R]. 北京:中国铁道科学研究院, 2009.
Yang Yiqian, Liu Peng, et al. Dynamic Detection Report of Wenzhou-Fuzhou Railway(in Zhejiang province and Fuzhou province)[J]. Beijing: China Academy of Railway Sciences, 2009.
[ 8 ] 卫星, 等. 大跨度铁路无砟轨道桥梁动力性能试验研究[J]. 中国铁道科学, 2008 (5): 40-45.
Wei Xing, et al. Test Study on the Dynamic Performance of Long-span Railway Bridge with Ballastless Track[J], China Railway Science, 2008(5): 40-45.
[ 9 ] 杨宜谦, 等. 常用跨度无砟轨道铁路桥梁动力性能试验研究[J]. 中国铁道科学, 2008 (4): 47-51.
Yang Yiqian, et al. Experimental Study on the Dynamic Behaviors of Ballastless Track Railway Bridge with Common Spans[J]. China Railway Science, 2008(4): 47-51.
[ 10 ] 徐升桥, 等. 铁路客运专线桥梁的动力性能研究[J]. 铁道标准设计, 2005(7): 26-29.
Xu Shengqiao, et al. Dynamic Performance Research of Passenger Railway[J]. Railway Standard Design, 2005(7): 26-29.
|
|
|
|
2010, Vol. 27 
