In view of the insufficient bearing capacity of beams of old bridges due to different degrees of cracks and other factors,relying on a project example of external prestressing reinforcement method of cross bridges,passive magnetoelectric vibration sensors are deployed and installed at measuring points to collect data,and a multi-performance monitoring system based on the cloud platform terminal as the core is adopted.The attenuation law of multi-channel prestressed cable force is analyzed.The results show that the prestressed cable force attenuates,but the overall attenuation degree is small.The attenuation degree of the prestressed cable in the middle channel of the bridge is relatively high and gradually decreases to both sides.
关键词
体外预应力/传感器/监测系统/索力衰减
Key words
External prestressing/Sensor/Monitoring system/Cable force attenuation
维普
万方数据