Impact Analysis Of Bridge Deck System For Half-Through Or Through Arch Bridge’s Driving Response

The suspenders of bridge occur fracture accidents constantly during the bridges arein service. Especially, with the increase of traffic volume, the influence of vehiclevibration on Bridges can no longer be ignored at present. There is a common point ofthese bridges that they have a similar deck structure±float bridge deck system, the formof longitudinal beam and the bending stiffness of longitudinal beam has become theimportant factors that affect the damage. suspendersThis paper has a research on the influence of the half-through and through archbridges’ deck system structure form on vehicle dynamic response, by changing thebending stiffness of girder and type of connection with skewback, thus attaining thegoal of change deck system structure.①Under the static load of a car, the mechanical characteristics of the differentbridge deck system structure are obtained, which includes suspenders axial force,internal force of arch rib and girder.②Without consideration of the vehicle vibration, by using constant moving forceon the bridge deck system, vehicle load at a constant speed through the bridge decksystem is simulated, the dynamic response of bridge under loads is researched on. Theresult compare to response under the static load.③With using the theory of vehicle-bridge coupling vibration, we use the bridgevibration and vehicle vibration as the metric. When a vehicle drives through thedifferent bridge deck system, analysis of the influence of different bridge deck systemfor the dynamic response of bridge is done. The influence of vehicle speed on thedynamic responses of the bridge deck system is researched.