Seismic Performance Simulation Analysis Of Lattice Poles On Overhead Contact System

Overhead Contact System is an important part of the railway electrification,railway line across the high intensity area is unavoidable(such as Sichuan-Tibet Railway),then the seismic of OCS should be considered.OCS lattice pole is the most important vertical load-bearing structure,and the OCS damages focus on the poles which are built on the bridge.Steel lattice poles are widely used on the bridge in our country,the OCS lattice pole safety issues is badly need to study.In this paper,in order to study the railway OCS lattice poles under seismic,using software ANSYS to analysis the response of OCS pole under static and sesmic.Finally,explored the response law of OCS under sesmic and put forward the suggestions.The main conclusions are:? For the ordinary OCS lattice pole that is not on the bridge under rare earthquake,the maximum acceleration of pole is about equal to the input peak acceleration.The response is not so obvious for common OCS pole.,the earthquake effect can be ignored?? For the OCS lattice pole on the bridge under rare earthquake,when the pole period get close to bridge period,the response of the OCS lattice pole under earthquake can not be ignored.The earthquake influence can be very huge,so this situation should be avoided.If this situation cann't be avoided,the cross section area of the lacing bar should increase.? The stress level of OCS lattice pole is very low under static load.Rigidity of the entire system is small too,the features of OCS lattice pole is summarized as large displacement.OCS lattice pole pull-off is more disadvantageous than push-off under the action of earthquake.The main innovations of this paper are as: the research on the dynamic response of OCS lattice pole on the bridge;the dynamic response law of OCS lattice pole on the bridge;proposed the seismic design of the OCS lattice pole;...