ZHAO Xue-feng1,DING Yan-bing1, HAN Rui-cong, YU Yan2, HU Wei-tong, GUAN Quan-hua, MAO Xing-quan, JIAO Dong, LI Ming-chu3, OU jin-ping1,4
1. School of Civil Engineering, Dalian University of Technology, Dalian 116024, China;
2. School of Electronic Science and Technique, Dalian University of Technology, Dalian 116024, China;
3. School of Software Technology, Dalian University of Technology, Dalian 116020, China;
4. School of Civil Engineering, Harbin Institute of Technology, Harbin 150090, China
Cable tension measurement is an important test item of bridge health monitoring. However, the traditional cable tension test methods have the disadvantages of inconvenience in installation and cabling, high cost and professional operation is required. Therefore, for the convenience of field measurement and improving the efficiency of measurement, a smartphone-based portable cable tension test method was proposed in this study. Firstly, according to the principle of vibration-frequency method, iPhone-based cable tension measurement software Orion CC was designed. Secondly, the contrast experiment on piezoelectric accelerometer and smartphone was carried out to verify its reliability. Finally, the application in the actual bridge had demonstrated its strong maneuverability and data stability. Compared with the conventional method, the smartphone-based wireless cable tension measurement method shows its advantages such as easy operation, convenience and efficiency, which is easy to be popularized in bridge structure detection.
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