Cable Tension Monitoring Technology Applications

Through reviewing and summarizing to the existing study achievements and project experiences, this paper studies the common method used to measure cable force (method of measuring vibration frequency), points out its adaptive limits and the shortage in measuring the force in cables with shock absorber. The paper also analyzes the structural characters and mechanics properties of cable with shock absorber and sets up the dynamics model. According to the energy principle, this paper carries out the calculation method considering with the effect of shock absorber, applies it to DanShan cable-stayed bridge in QingDao, and obtains the expected result, which provides theoretic basis and technological preservation to the construction control and operation management of same type bridge especially to force monitoring in the cables with shock absorber.