The Simulation Analyisis And Control Research Of The Hu Lu Shan Wan Crossing Sea Bridge Construction

The construction process of the half-through basket-type arch bridge in flying bird is complex, and construction simulation analysis and construction control is more and more important. The research domestically about CFST basket-type arch bridge in flying bird is much. But when single arch steel box is used as bearing component, the in-depth research and application about arch rib stability, the choices of construction booms tension and parameter identification and prediction is little.This paper established the bridge structure finite element model using Doctor-bridge to analysis the whole plane construction process. Checking the stress and deformation of structures are in every stage of construction. Establishing finite element model structure space is for synchronous review by MIDAS. Through comparing various theories and methods of determining the superposition bridge suspenders, and finally adopting rigid supporting continuous beam method to determine suspender tensile force. Combining with actual construction of the bridge, optimize and select scheme of installation and tension of the suspender, adopting influence matrix method to determine various suspenders superposition of construction installation. Based on the string vibration principle, adopt the frequency spectrometry to determine superposition the suspenders, meanwhile installing core through typed pressure transducer in the designed suspenders to measure the boom superposition for review. Based on the least squares method and principle, carrying on the parameters identification, sensitivity analysis and parameter deviations corrected.Synthesizing plane finite element model and the calculation results of spatial finite element model, and combining with actual construction of the bridge to determine the scheme of installation and tension of the suspender. In strict accordance with the suspender construction instructions, monitoring the whole process of installation of the suspender and superposition drawing, and monitoring the strain and displacement of every control sections of the girder and arch ribs. The bridge linear of the girder and arch ribs should meet the design requirements, achieve overall effective construction monitoring, to ensure the safety of arch bridge construction, and a lot of valuable theoretical data and experimental data gotten provide in-depth analysis and research with advantages, and have reference value in a similar study of bridge construction control.