Load Test Analysis of Self-Anchored Suspension Bridge
[Purposes]To accurately grasp the operating status of a self-anchored suspension bridge,dy-namic and static load tests are carried out on the bridge.[Methods]Based on the strain data,deflection data,and cable data under static load,combined with the fundamental frequency and modal parameters under dynamic load test,the measured values are compared with the theoretical values by the finite ele-ment simulation and load test method.[Findings]The load test results show that the relative residual strain of the main bridge is less than 20%,the deflection calibration coefficient is between 0.83 and 0.99,the cable force and the leading cable deformation calibration coefficient are between 0.76 and 0.91,and the measured first three natural vibration frequencies of the main bridge are more significant than the theoretical first three natural vibration frequencies.[Conclusions]The bearing capacity and stiffness of the bridge can meet the requirements,and the deformation of the sling and main cable can meet the de-sign requirements.In general,the driving requirements are met.
NETL
NSTL
万方数据
