实验研究在一个离散的铁路紧固系统的弹性支,用于无压电车轨道结构的试验研究
Cezary Kraśkiewicz1, Monika Urbaniak1, Andrzej Piotrowski1
1Faculty of Civil Engineering, Warsaw University of Technology, Al. Armii Ludowej 16, 00-637 Warsaw, Poland.
Materials (Basel, Switzerland)
|January 11, 2025
概括
回收底板为电车轨道提供了一个可持续的解决方案,与传统聚氨底层的性能相匹配. 这项创新减少了振动和噪音,促进了环保建筑和更快的维修.
科学领域:
- 土木工程 土木工程是指土木工程.
- 材料科学 材料科学 材料科学
- 可持续建筑 可持续建筑
背景情况:
- 在无压电车轨道上的离散轨道紧固系统对振动和噪音等环境因素产生重大影响.
- Pm49基板的弹性支对于管理这些环境影响和轨道偏移至关重要.
- 评估弹性支特性现有的方法往往是昂贵和耗时的.
研究的目的:
- 实验性地研究电车轨道Pm49基板中的弹性支的静态和动态特性.
- 分析材料特性 (厚度,密度) 对刚性的影响.
- 为了在易于测量的现场参数和实验室确定的刚度值之间建立相关性.
主要方法:
- 根据欧洲标准EN 13146-9的轨道类别A的弹性支元件的实验室测试.
- 对材料厚度,密度和Shore硬度的分析.
- 基于聚氨 (PU) 的基层与乙烯 (SBR) 的基层之间的性能比较.
主要成果:
- 来自回收轮胎的乙烯 (SBR) 颗粒可以达到与聚氨 (PU) 树脂底层相当的静态和动态参数.
- 发现材料厚度和密度会影响硬度.
- 在现场可测量的参数和实验室确定的刚度之间建立了相关性.
结论:
- 预制的SBR基板是一种可行的,可持续的替代品PU底层用于电车轨道弹性支.
- 使用回收的SBR可促进建筑中的可持续材料,并减少环境污染.
- SBR方便快速安装,有利于轨道维护和维修.
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