拱桥柔性吊索索力振动频率法测试

The Test of the Vibration Frequency Method Which is Used in Arch Bridge Flexible Sling's Cable Force

通过对拉索索力振动法测试计算公式简化分析,引入振动法测试的索力系数,只要在桥梁施工过程中通过压力传感器法或张拉千斤顶法确定各条吊索的索力系数,则振动频率法测试索力的公式变成了仅与拉索振动频率有关,对提高利用振动频率法测索力精度意义很大,尤其是精确测试短索的索力。

Through a simplified analysis of cable force vibration method＇s formula, the study brings in the cable force coefficient of the vibration test method. As long as to use the method of pressure sensor or tensioning jack in the process of the bridge construction to determine the cable force coefficient of each sling, the formula of vibration frequency method tests the cable force becomes something related to cable vibration frequency. It＇s very meaningful for improving the cable force accuracy in using vibration frequency method, especially for the accurate test of lanyard cable force.