The study of a bridge Vibration under the load of an accelerated vehicle

In this investigation, a bridge vibration under the influence of a moving car was simulated. The computations were based on the consideration of the vehicle as a quarter of car through two degrees of freedom (2DOF) and half of the car through six degrees of freedom (6DOF). The Timoshenko theory of beams along with simply supported boundary conditions was exploited in the calculations. Also, in the numerical simulation, the car acceleration was considered to be constant. The findings of the present work revealed that the employment of both 2DOF and 6DOF give rise to a similar deflection of the structure. Moreover, it was found that the rotary inertia has profound impact on the structure response, while influence of shear deformation can be disregarded.

کلیدواژه ها:

Timoshenko Theory ، Beam ، Moving Load ، Runge-Kutta Method