Study on Mechanical Properties of Seamless Track on Tram Bridge
To study the mechanical properties of seamless track on tram bridge,a finite element model of track bridge integration is established by taking a practical project as an example.The beam rail interaction under different working conditions is comprehensively calculated and analyzed.Finally,the influence of temperature,track and bridge parameters on beam rail interaction is systematically analyzed.The results show that the beam rail interaction should be considered in the design of seamless track on tram bridge.The beam rail interaction is affected by the temperature change of the bridge,the longitudinal resistance of the line and other factors.Under difficult conditions,small resistance fasteners can be used to reduce the additional force of the rail.In addition,changing the arrangement of bridge bearings to shorten the temperature span and setting rail expansion regulators can improve the internal force distribution of the additional force of the seamless track rail on the tram bridge.
NETL
NSTL
万方数据
维普
