Construction Control Of Beiguan Bridge In Jiangshan

The method of constmction control of self-anchored suspension bridge is mainly analyzed in this paper, based on the Beiguan Bridge in Jiangshan. The textual emphases as follows:1. The primary coverage of initial state construction control for self-anchored suspension bridge is illustrated. Moreover, structural geometry and internal force during each stage is analyzed, based on the analytical iteration method and the nonlinear finite element method.2. Two different methodologies are applied for confirming the clamp position of self-anchored suspension bridge. Ensure to locate the proper position of final state, the analysis and adjustment is used, combining with the feedback information.3. The method, which describes the displacements of main cable and hangers force and puts the tension completion into effect by three times, to trace analogy calculation during tension procedure. In addition this method contains weak interference principle of main cable displacement, near influence principle of hangers force and forward alternately tension method.4. The basic theory of control method of unstressed cable length is illustrated. And this control method is employed for adjustment hanger force of self-anchored suspension bridge, order to conform with require of design.