Application of Intelligent Regulation Cable based on Beidou Monitoring System in Multi-span Arch Bridge Asymmetric Buckle System
The double-span continuous arch bridge is featured with the continuous arch effect of the central arch force,and the central arch is balanced due to the opposite direction and the same size of the horizontal thrust generated on both sides after the bridge is formed,and the central arch is only subjected to vertical pressure.However,in the process of arch rib hoisting,because the cable crane can only lift one arch rib segment at a time,the completion of the single-side arch rib section lifting will produce a large unbalanced force on the pier body and buckle tower of the central arch,thus causing tower deviation.Relying on the Shuangbao Major Bridge of the Yu-Xiang(Chongqing-Hunan)Expressway Double Track Project,the application of intelligent regulating cable is introduced based on Beidou monitoring system in the asymmetric buckle system of the middle pier of double-span continuous arch bridge,focusing on the structural design and working application principle of intelligent regulating cable,so as to provide experience for future construction of the same bridge type.
Shuangbao Major Bridgedouble-span continuous arch bridgeasymmetrical buckle systemintelligent adjustment cablestructural designprinciple of application
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