移动荷载作用下弹性简支梁的动力响应分析

Elastic supports are often used in bridge engineering to reduce bridge vibration response caused by moving vehicle load. The analytical solutions for simple supported beam and elastic supported beam under moving load were deduced in the paper, and the dynamic responses of simple supported beam and elastic supported beam under moving load series were calculated and analyzed by the software ANSYS and program language MATLAB. The dynamic responses of vertical displacement and acceleration at beam middle section and reaction at beam supports were obtained. The analysis results showed that the elastic support can reduced beam acceleration, while on the contrary, beam deflection will be increased.)