THE MONITORING OF SEGMENT-CONSTRUCTED BRIDGE AND STRUCTURAL PARAMETERS ESTIMATION
It is of vital importance to build the bridge model correctly and select the parameters properly in forecasting and grasping the changes of internal forces and displacement during the construction. Meanwhile, such work also has great guidance to the monitoring after the bridge has been completed. Under the background of San Pigang great bridge, this paper forecasts the camber during the construction and analyze the influence of the dead load, the prestressing force, the shrinkage and the creep of the concrete by building the finite element model of the bridge. At the same time, the bridge structural parameters such as the elastic modulus, etc. are estimated by the use of Kalman Filtering Method and then applied to the model. From the monitoring results, we can make a conclusion that the Kalman Filtering Method can be effective in estimating the bridge structural parameters and has great application value in the bridge monitoring.
Xiang-Dong Yu Hui Guo
Department of Bridge Engineering, Central South University, Changsha 410075, P.R. China
国际会议
长沙
英文
917-921
2007-11-19（万方平台首次上网日期，不代表论文的发表时间）