关于高速铁路扣件间距的探讨
Railway Standard Design(2013)
Abstract
为探讨高速铁路扣件间距的合理取值,从钢轨动弯应力、轨道刚度、钢轨位移及轨道动力学等方面对扣件间距的取值进行计算分析,结果表明,当扣件间距从600 mm扩大到1 200 mm时,对轨道状态及列车运行的舒适性影响较小。同时应用"二次弯沉"和"钢轨挠度增量"的概念对扣件间距取值进行探讨,提出高速铁路的扣件间距一般不宜超过687 mm的取值建议。
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Key words
space between fastenings,high-speed railway,ballastless track
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