| 不同结构无缝道岔的纵向力传递机理 |
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| 引用本文： | 王平. 不同结构无缝道岔的纵向力传递机理[J]. 西南交通大学学报, 2003, 38(4): 371-374 |
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| 作者姓名： | 王平 |
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| 作者单位： | 西南交通大学土木工程学院,四川,成都,610031 |
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| 基金项目： | 铁道部科技开发计划项目 (2 0 0 1G0 4 1) |
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| 摘 要： | 分析、比较了固定辙叉、长翼轨可动心轨和短翼轨可动心轨3种辙叉型式、限位器及间隔铁2种辙跟型式的无缝道岔纵向力传递机理及其对无缝道岔各部件受力和变形的影响．研究表明，辙叉采用长翼轨可动心轨、辙跟采用限位器是一种较合理的无缝道岔结构．
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| 关 键 词： | 无缝线路轨道 温度力 位移 道岔 辙叉型式 纵向力 |
| 文章编号： | 0258-2724(2003)04-0371-04 |
Mechanism of Longitudinal Force Transmission of Welded Turnouts with Different Structures |
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| WANG Ping. Mechanism of Longitudinal Force Transmission of Welded Turnouts with Different Structures[J]. Journal of Southwest Jiaotong University, 2003, 38(4): 371-374 |
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| Authors: | WANG Ping |
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| Abstract: | The regularity of longitudinal force transmission of welded turnouts with differ ent types of frog and heel is investigated, and the effects of frogs and heels o n the force and displacement of the parts of a welded turnout are discussed. The types of frog and heel dicussed include rigid frog, long-wing movable-point f rog and short-wing movable-point frog for the former and spacer block and spac ing restricting device for the latter. The research result shows that combinatio n of the long-wing movable-point frog and the spacing restricting device is a more reasonable structure of welded turnouts. |
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| Keywords: | jointless track temperature force displacement |
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