| 刚度折减对制动力的影响分析 |
| |
| 引用本文： | 方利,李成辉. 刚度折减对制动力的影响分析[J]. 路基工程, 2011, 0(3): 166-168 |
| |
| 作者姓名： | 方利 李成辉 |
| |
| 作者单位： | 1.中铁二院重庆勘察设计研究院有限责任公司, 重庆 400023 |
| |
| 摘 要： | 当列车在桥上实施制动时,列车对桥上线路施加一纵向水平力——轨面制动力。轨面制动力通过线路结构传给桥跨,这些作用力是影响桥梁下部结构设计的重要因素。在制动力作用下,轨道板和底座板受拉,其承载力降低。在ANSYS计算分析中,采用刚度折减来模拟这种情况。先提出采用刚度折减这一原理,再讨论刚度折减对线路和桥梁结构的受力影响并分析其作用机理。结果表明,对钢筋混凝土制作的底座板和轨道板,在计算中必须进行刚度折减,否则会带来安全隐患。
|
| 关 键 词： | 刚度 折减率 制动力 |
| 收稿时间： | 2019-11-06 |
Influence Analysis of Rigidity Reduction on Braking Force |
| |
| FANG Li,LI Cheng-hui. Influence Analysis of Rigidity Reduction on Braking Force[J]. , 2011, 0(3): 166-168 |
| |
| Authors: | FANG Li LI Cheng-hui |
| |
| Affiliation: | FANG Li1,LI Cheng-hui2(1.CREEC(Chongqing) Survey,Design and Research Co.,Ltd.,Chongqing 400023,2.School of Civil Engineering,Southwest Jiaotong University,Chengdu 610031,China) |
| |
| Abstract: | When train braking on bridge,a horizontal force is applied,i.e.braking force on surface.Braking forces transfer to bridge span through line construction,which are the key factors for bridge substructure design.Under braking force,track slab and base plate are pulled so that their bearing capacity is reduced.In this paper,this situation is simulated using rigidity reduction in ANSYS calculation.The theory of rigidity reduction is first put forward,and the influence on the stress of line and bridge structure ... |
| |
| Keywords: | rigidity reduction ratio braking force |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《路基工程》浏览原始摘要信息 |
|
点击此处可从《路基工程》下载免费的PDF全文 |
|
