| 既有重载铁路简支梁桥提速适应性分析 |
| |
| 引用本文： | 龙卫国,蒋丽忠,王晓锋.既有重载铁路简支梁桥提速适应性分析[J].湖南科技大学学报(自然科学版),2017,32(4):49-53. |
| |
| 作者姓名： | 龙卫国 蒋丽忠 王晓锋 |
| |
| 作者单位： | 1. 湖南城建职业技术学院,湖南 湘潭 411101；
2. 湘潭大学 工程结构动力学与可靠性分析重点实验室,湖南 湘潭 411101；
3. 中南大学 土木工程学院,湖南 长沙 10075；4. 南华大学 数理学院,湖南 衡阳 421001 |
| |
| 基金项目： | 湖南省普通高等学校重点实验室开发课题资助项目（KZ070010105） |
| |
| 摘 要： | 以朔黄线温塘河特大桥为例,采用一系轴箱悬挂货车模型,建立重载列车-有砟轨道-桥梁的空间动力学方程组,采用迭代求解,编制了相应重载铁路车-桥耦合振动分析程序.通过仿真计算和现场试验分析了重载列车速度对重载铁路简支梁桥的各种动力性能指标的影响;借助现有的铁路桥梁检测规范,对既有重载铁路桥梁提速适应性进行了分析,给重载列车通过该铁路桥梁的最高速提出建议.
|
| 关 键 词： | 重载列车 车-系统 动力性能指标 铁路桥梁检测规范 提速适应性 |
Analyzing Adaptability of Increasing Speed of Existing
Heavy Haul Simply Supported girder Bridges |
| |
| Long Weiguo,Jiang Lizhong,Wang Xiaofeng.Analyzing Adaptability of Increasing Speed of Existing
Heavy Haul Simply Supported girder Bridges[J].Journal of Hunan University of Science & Technology(Natural Science Editon),2017,32(4):49-53. |
| |
| Authors: | Long Weiguo Jiang Lizhong Wang Xiaofeng |
| |
| Abstract: | The Wen-Tang river extra large bridge in Shuo-Huang railway was taken as an example, by using an axle box suspension truck model, coupling motion equations of vehicle-bridge system of heavy haul were built up. By using the iteration, the bridge-vehicle coupling vibration analysis program of heavy haul railway was established. The influence of a variety of dynamic performance indicators for the speed of heavy-haul train over simply supported girder bridges were analyzed by the simulation calculation and field test. With the inspection specification of the existing railway bridge, the adaptability of increasing speed of existing heavy haul railway bridges were analyzed, the highest speed of heavy-duty train through the railway bridges was put forward the proposal. |
| |
| Keywords: | heavy haul train vehicle-bridge system dynamic performance indicators test specifications of railway bridges adaptability of increasing speed |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《湖南科技大学学报(自然科学版)》浏览原始摘要信息 |
| 点击此处可从《湖南科技大学学报(自然科学版)》下载免费的PDF全文 |
