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The steel concrete has good compression performance, high load carrying capacity, good impact resistance and shock resistance, fire resistance and good corrosion resistance, convenient construction and good economic performance advantages. The mechanical properties of the steel pipe concrete for arch structure, application of concrete filled steel tubular construction of the arch bridge, integrated to meet the demand of the load-bearing capacity of the construction of bridges, material saving, installation, light weight, convenient construction requirements, a span arch bridge ideal structure. Over the last decade, the development of steel pipe concrete arch bridge in China soon, in engineering practice has been widely used, not only to build the number gradually increased, the span is also increasing, so construction technology, construction control requirements are constantly improved. Dongho Bridge engineering background, research CFST Arch Bridge construction control theory, the main content is as follows: 1, from research Concrete Filled Steel Tubular Arch Bridge construction methods, analyzes the construction of Concrete Filled Steel Tubular Arch Bridge, which pointed out that The main problem is the construction of concrete filled steel tubular development issues. Dongho Bridge construction combined with study of CFST arch bridge construction methods, and lay the foundation for the construction control. 2 In this paper, the principle of the bridge construction control requirements and content, method of construction control were discussed CFST Arch Bridge Construction Control structure analysis method and its error analysis, parameter identification and state forecasting methods have also been studied. CFST arch bridge construction control error caused by factors derived structural parameters error is one of the main factors caused by the construction of the control error, it can be corrected through the parameter identification method. 3, of a determined CFST Arch Bridge Hanger tension value method using the method suspender tension by a tension can reach the target. Calculated using the finite element method to simulate the entire boom final tensioning process to determine the target value of the tension, according to the actual displacement value end tension Tied and need to raise the value of the displacement; then measured cable force value The tension value calculation suspender force increments, and then the cable force boom need to adjust the cable force incremental impact matrix method. Reasonable analysis in accordance with the need to adjust the cable force incremental tension sequence disposable Adjustment Cable completed. Combined with East Lake bridge during its construction, according to the measured cable force and target cable force obtained using the cable force needs to be adjusted to affect the calculation of the matrix method of cable force incremental, and order a study of the Adjustment Cable, derived the optimal boom Adjustment Cable program, the boom by the time La Housuo force can achieve the target value.
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