| PC continuous beam bridge cantilever construction, by pouring hole sections andassembled in three different working methods, respectively, using the "Cradle","movingmold" and "segmental bridge machine" three functions bridge device. Due to the requestof more than three different construction methods, resulting in non-uniform structure ofthese devices function are not interchangeable, resulting in tremendous waste.For the above defects, Combined with the use and development of current bridgemachine, Proposed a set of special functions in one of the three multi-purposeeighty-seven truss bridge machine design concept and construction method. Itsmechanical systems design, structural analysis and calculation of the main beam and theMIDAS software analysis, Calculated rationality of the bridge-building machine. Thispaper mainly on the following several aspects work:Firstly, According to the current existing bridge machine and construction methodsproposed conceptual design of multifunction bridge machine.Secondly, According to proposed functional design requirements, the systemintroduces the composition bridge machines.Thirdly, Mechanical design of the bridge-building machine, especially Q50fullswing crane overturning line design and routing design agency.Fourthly, For more than three different construction process, structural analysis;different functions and bridge-building machine conversion, the proposed constructionmethod corresponds.Fifthly, Using MIDAS software, The girder under different load, To calculate thevertical steel truss under diffierent conditions ofdeformation, axial forceand stress,Analysis of the main beam of bridge erecting machine, deformation andstability all meet the requirements.This design of bridge-building machine design features, structural characteristics,carried out on the construction method improvements, bridge construction to meet therequirements of the present stage, to provide theoretical support and technical referencefor similar bridge-building machine design. |