Research on the Influence of Stayed Cable Tensioning Process on the Structural Performance of Extradosed Cable-stayed Bridge
In order to explore the influence of the stayed cable tensioning process on the structural performance of the extradosed cable-stayed bridge,this paper takes the double-tower double-cable Jianghan Canal Extra-large Bridge as the research object.On the basis of the detailed discussion of the stayed cable construction process and tensioning process,the stress characteristics and construction effects of the key components of the bridge structure during the stayed cable tensioning process are comprehensively evaluated through on-site monitoring technology.The results show that the reasonable stayed cable construction and tensioning process can effectively avoid the adverse stress state of the cable tower column,the concrete main beam and the cable anchorage zone of the cable tower,and then improve the service performance of the cable-stayed bridge.
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