刘江黄河大桥主桥运行环境下的振动测试

本文通过对刘江黄河大桥主桥运行环境下的振动实测,得到桥梁的在不同频率下的竖向加速度、横向加速度的响应振动稳定图,扭转振型及扭转频率,判断吊杆的损伤对横、竖向振动的影响,推知桥梁目前的运行状态。

Vibration Test of the Running Environment of the Main Bridge of Liujiang Yellow River Bridge

Based on the vibration test of the running environment of the main bridge of Liujiang Yellow River Bridge measured vibration Liu Jiang Yellow River main bridge operating environment, this paper got the response vibration stability diagram of vertical and lateral acceleration under different frequencies, torsional vibration mode and torsional frequency, judged the effect of the damage of boom on vertical and lateral vibration, so as to predict the current operating status of bridge.