Large-tonnage prestressed pier of a hydropower station is applied to resist huge hydraulic thrust from the radial gate arms. Pier cable tension monitoring in nearly two years shows that part of the anchor tensile force had lost by more than 15% and not converged,and that the pier had strong vibration during the flood discharge. In order to clarify the influence of the anchor cable force losses on dynamic characteristics of the pier( including modal characteristic,dynamic displacement and dynamic stresses),a...
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