|
|
|
| Study on Additional Longitudinal Forces of CWR of Heavy － haul Railway Bearing 40 t Axle Load of Vehicle |
| YIN Ming － min，YI Nan － fu，MENG Wen － li，WANG Jian |
| China Railway Eryuan Engineering Group Co． Ltd，Chengdu，Sichuan 610031，China |
|
|
|
|
Abstract Research purposes:Based on the load and parameters of the foreign Heavy － haul Railway，the track－bridge－pier longitudinal coupling model was established for CWR to calculate and analyze the additional longitudinal forces of CWR on bridge of the heavy － haul railway bearing 40 t axle load．of vehicle for well knowing the influence of the various design parameters on the additional longitudinal force to distinguish the continuous welded rails of the ordinary railway with the passenger dedicated line and help carry out the design of heavy－haul railway．
Research conclusions:To ensure the safety of the heavy － haul railway bearing 40 t axle load of vehicle，the large cross－section rail with high strength． should be used． When the rapid relative displacement of the beam and rail is not more than 4 mm，the span of the bridge for the heavy － haul railway bearing 40 t axle load of vehicle should not exceed 40 m，and at this time，the minimum limit value of the vertical line stiffness of the pier is more than the value in the " Design Specifications for High － speed Railway" ． Therefore，the vertical line stiffness should be controlled by the pier stiffness according to the calculation to make the braking force born by the rail and bridge pier．stiffness should
|
|
Received: 25 June 2012
|
|
|
|
|
|
［1］殷明旻，王平，等．遂渝线一次铺设跨区间无缝线路设计研究报告［R］．成都: 中铁二院工程集团有限责任公司，西南交通大学，2006．
Yin Mingmin，Wang Ping，etc． Design Research Report of Laying Super Long Continuous Welded Rail Track in SuiYu Line［R］．Chengdu: China Railway Eryuan Engineering Group Co． Ltd，Southwest Jiaotong University，2006．
［2］马战国．无缝线路长钢轨制动力的研究［J］．中国铁路， 2003( 6) : 49－51．
Ma Zhanguo．The Braking Force Research of CWR Long Rail［J］．Chinese Railway，2003(6) : 49－51．
［3］江成．货车轴重的增加对铁道线路的影响［J］．铁道工程学报，1997(3) :165－172．
Jiang Cheng．Railway Line Truck Axle Load Increase ［J］．Journal of Railway Engineering Society，1997(3) : 165－172．
［4］马大炜，钱立新．高速铁路桥梁制动载荷研究［J］．铁道学报，2000(10) :116－120．
Ma Dawei，Qian Lixin．Study on Braking Load on Bridge for High Speed Railway ［J］．Journal of the China Railway Society，2000(10) : 116－120．
［5］黎国清，等．高速铁路桥上无缝线路附加力的研究［J］．铁道学报，1997(9) :15－23．
Li Guoqing，etc．Study on Additional Forces of CWR on High － speed Railway Bridge ［J］．Journal of the China Railway Society，1997(9) : 15－23．
［6］卜一之，张进． 高速铁路桥梁有效制动力初探［J］． 四川建筑，1996(5) :21－23．
Bu Yizhi，Zhang Jing．Preliminary Study on High － speed Railway Effective Braking Force［J］．Sichuan Architectural，1996(5) : 21－23．
［7］铁建设函［2003］205 号，新建铁路桥上无缝线路设计暂行规定［S］．
Railway Construction Letter ［2003］ No．205，New Railway Line Interim Provisions of CWR on Bridge ［S］．
|
|
|
|
2012, Vol. 29 
