SELF-ADAPTIVE CONSTRUCTION CONTROL ANALYSIS OF PRE-STRESSED CONCRETE CABLE-STAYED BRIDGES

The control of girder geometry and internal forces is very important in the construction of pre-stressed concrete cable-stayed bridges.A self-adaptive construction control analysis method is proposed.The ameliorated continuous rigid-support beam method is proposed to analyze rational completed state.The forward-iteration method is utilized to analyze the rational construction state.The parameter check-identification method based on the least squares method is proposed for parameter identification.The grey forecast model with error correction is used to forecast parameters.The analysis result of a symmetric cable-stayed bridge shows that the self-adaptive construction control analysis method is feasible and reasonable.