日本的计算机设计模型试验证明,无缝线路道岔的钢轨,由于温度变化而在轨内产生轴向力,这是因为受线路的纵向阻力的作用而形成的。通过试验可以看到: 1、道岔钢轨中有较大的轴向力,试验结果与计算机的计算值是吻合的; 2.道岔的基本轨及其连接配件所产生的阻力比无缝线路的纵向阻力要大一些; 3、因温度变化而产生的轴向力最大值出现在基本轨的尖轨根部附近,其值约为无缝线路的1.35倍; Japan’s computer design model tests show that the rails of CWRBs produce axial forces in the rail due to temperature changes because of the longitudinal resistance of the wires. Through the test, we can see that: 1, there is a large axial force in the turnout rail, the test result is in line with the calculated value of the computer; 2. The basic rail of the turnout and the resistance produced by the connecting fitting are better than those of the seamless line Longitudinal resistance to be larger; 3, the maximum axial force due to temperature changes appear in the basic rail near the root of the rail, the value of about 1.35 times the seamless line;