The Tracking Simulate Calculation Of Construction Stage And Experimental Analysis Of Arch Tower Cable-stayed Bridge

For the reason that there is no end anchor to constrain the horizontal deflection atthe top of the middle tower of muti-tower cable-stayed bridge,the flexibility ofmuti-tower cable-stayed bridge is bigger than that of the single-tower cable-stayedbridge and two-tower cable-stayed bridge. While a cross of the cable-stayed is underlive load, the main girder and the tower will have a great moment and displacement,this is very unfavorable to force of the overall structure. Therefore, the workingperformance of the research of the tower cable-stayed bridge will greatly promote thedevelopment of long-span Bridges in China. In the engineering background of abridge the Yangtze river highway bridge right branch arch towers cable-stayed bridgein Ma Anshan., Considering arch bridge tower structure characteristics, design theoryand construction control, the key technical problems in tracking the simulationcalculation of cable-stayed bridge. First, use the finite element software such as DrBridges, Midas civil established the calculation model of the whole bridge, the overallcalculation of the whole bridge review, determine the design weak link according tothe results of the review. Secondly, by analyzing the arch model test results, the archtower structure in prestressed beam and cable tension loads of stress distribution anddeformation law, stress distribution,cracking and other key results of determinedsection. Design results and calculation results are verified. Finally, according to theactual construction situation to adjust the calculation model, combined with theconstruction monitoring, we finished the whole construction process of cable-stayedbridge track simulation and provided technical support for the smooth construction ofthe bridge completed.