Concrete-filled Steel Tubular Basket-handling Arch Bridge Cable Force Optimization And Linear Control Research

With the development of scientific and technological progress and national economicconstruction, the construction of large span concrete filled steel tubular arch bridge provides agood support conditions, style CFST basket-handling Arch Bridge span further increases, theincrease of cable force in the construction process optimizationand the difficulty of the linearcontrol. It can be said of Concrete Filled Steel Tubular Arch Bridge final bridge linear andlinear in the construction process is inseparable from. With the increase of the horizontal spanstyle CFST basket-handling Arch Bridge, the horizontal span of the steel beams and thenincreasing, and the line will affect the steel beams to the deck elevation, horizontal alignmentcontrol is also extremely important.In this paper rely on a Bridge of Hebei Province style CFST basket-handling ArchBridge cable force optimization and linear control, The main contents: the main contents:(1)Rib of Concrete Filled Steel Tubular basket-handling Arch Bridge in the construction processof vertical swivel buckle cable tension optimization Rib linear control. Based on unknownload coefficient method, as well as the impact matrix method, Rib vertical swivel constructionprocess, enhance the tower’s vertical position, the internal forces, cable set constraints, theconstrained objective function, the cable force optimization of the arch ribs linear controlstudy, the optimization results to ensure that the linear vertical swivel construction Rib meetthe design requirements.(2) style CFST basket-handling Arch Bridge crane cable tension todetermine the control study on Arch. Use of finite element software to create a simulationmodel of Concrete Filled Steel Tubular basket-handling Arch Bridge construction phase,respectively, using a rigid boom method, rigid support for beam method, unknown SuspenderForce load factor method optimization, as well as by direct hoisting boom to carry out acomparative analysis of the construction phase Rib linear impact the conclusion that the directhoisting boom smallest linear effects of the Rib, the eventual adoption of the lifting boom toboom installation.(3) Aalignment control of the steel beams of Concrete Filled Steel Tubularbasket-handling Arch Bridge. Stress analysis of steel beams, obtained under constant loaddisplacement, the displacement of the moving load, using the method of specification,simplified method of calculation, as well as pre-camber correction factor method proposed inthis paper to calculate the steel beams of the pre-camber, comparative analysis of the eventualadoption of the proposed pre-camber correction factor method to the steel beams pre-cambersettings and horizontal alignment control of the steel beams.This study guide based on the project in the construction phase of cable force optimization and linear control, and research on a similar bridge with a certain referencevalue.