Single Tower Cable-stayed Bridge Construction Control And Simulation Analysis

Cable-stayed bridge is a bridge of deck system pressure, supporting system in tension, belong to high order statically indeterminate structure.Tower and cable arrangement is flexible with colorful architectural modeling.Construction process into the bridge impact linear and internal force state.So the construction control of cable-stayed bridge become an important research topic.This paper introduces the development status of cable-stayed bridge athome and abroad,analyzes mechanical characteristics and introduces the construction control theory briefly. By The Guo He Bridge as the engineering background,introduces the cable-stayed bridge construction control process,and establishes of finite element model of whole bridge by MidasCivil, simulation according to the construction process.Research on construction technology of changes to the internal force and displacement of bridge changes,analyzes the feasibility of the construction changes.Analysisof the hanging basket load equivalent method, and the maximum cantilever state and into a state of bridge girder internal force and deformationwere analyzed.Through the change of some parameters of the full bridge model, analyzes the effects of different parameters on the bridge bridge, Identify sensitive parameters. The construction process of the sensitive parameters are key to control, to ensure that the bridge into a bridge in a reasonable state bridge.Establishes the Ansys space finite element model, simulation of3#block traction hanging basket detailed construction process, analysis of the impact of multiple cable tensioning process of0#-2#block, Comparisonof Midas Civil simulation rear hanging basket and ANSYS simulation of front hanging basket, guidance to facilitate the implementation of construction control.