Design and Experimental Study on a Novel Direct Measuring Force Device for Rod-Cable Structure Bridge Cables

Able force testing plays an important role in the daily maintenance of cable-stayed Bridges, which is conducive to ensuring the safe and stable operation of cable-stayed Bridges. A novel direct measuring force device for cable forces based on Newton's third law is presented in this paper. The installation method and experimental platform construction method of the measuring device are described. The experimental results show that the designed measuring device has the advantages of compact structure, lightweight, low operating strength, no electricity requirement, and is suitable for on-site operation. Moreover, the detection method does not need to change the installation and connection relationship of the cables, and can detect the cable force without affecting the normal use of the bridge.