ISO 22074-7:2021 铁路基础设施 钢轨扣件系统 第7部分：夹紧力和抗拔刚度的试验方法

标准编号：ISO 22074-7:2021

中文名称：铁路基础设施 钢轨扣件系统 第7部分：夹紧力和抗拔刚度的试验方法

英文名称：Railway infrastructure — Rail fastening systems — Part 7: Test method for clamping force and uplift stiffness

发布日期：2021-08

标准范围

本文件规定了实验室试验程序，通过测量将轨脚与其直接支撑分离的力，确定扣件系统施加在轨脚上的夹紧力。必要时，该程序也可用于确定紧固系统的抗拔刚度。它适用于所有类型的轨枕、支座或无碴轨道元件上有或无底板的系统。本试验不确定固定在轨枕或其他紧固系统支架上的紧固部件的安全性。本测试程序适用于完整的紧固件总成。不适用于嵌入式钢轨的扣件系统或其他不作用于钢轨底部的扣件系统。

This document specifies the laboratory test procedure for determining the clamping force exerted by the fastening system on the foot of the rail by measuring the force to separate the rail foot from its immediate support. When required, the procedure is also used to determine the uplift stiffness of the fastening system.It is applicable to systems with and without baseplates on all types of sleepers, bearers or elements of ballastless track. The test does not determine the security of the fastening components fixed into the sleeper or other fastening system support.This test procedure applies to a complete fastening assembly. It is not applicable to fastening systems for embedded rail or other fastening systems which do not act on the foot of the rail.

标准预览图