大跨桥梁在不同荷载作用下的动力响应监测

桥梁结构的动力特性是结构动力计算和抗震分析的基础，也是桥梁健康状况监测的一个重要指标。该文根据加速度响应时程曲线分析了某大跨斜拉桥在重车、船撞、大风、爆破地震等各种荷载作用下的振动响应，得出大跨桥梁在不同荷载作用下的动力响应特性。

Dynamic Response Monitoring of Large-span Bridge under Different Loads

The dynamic characteristic of the bridge structure is the basis to the structural dynamic calculation and the seismic analysis,and is also the important index to monitor the bridge health conditions. Based on the time-history curve analysis of acceleration response,the article analyzes the vibrating response of a large-span cable-stayed bridge under the different loads of heavy vehicles,ship collision,strong wind,blasting earthquake and so on,and gives the dynamic response characteristics of the large-span ...