Considering the reasons of the bending temperaturestress and the characteristic distributed for it, in this paper, a measure is promoted by setting sliding support at thes.
The characteristic of the temperaturestress in the jointless switch lies in supporting additional temperature stress on the stock rail, the stress and the displacement presents the complex nature.
无缝道岔温度力的特点在于基本轨要承受附加温度力的作用，岔内钢轨受力和位移状况复杂。
3
Equipment life-span diagnoses mainly research the variation rules of unit part in unsteady temperature and thermal stress, fatigue characteristic of metals and life deterioration of equipments.