A method of simulating the operation of cable adjustment in the rib-assembling computation is proposed by means of the iterative approaches and amending the cable gravity effect.

Optimum calculations are made on cable force adjustment for the under-construction Hangzhou Wenhui bridge.

Based on the planar beam finite element method and the influence matrix method,a trial-and-error calculation method was applied to determine the optimal cable force adjustment scheme.

The satsfactory content method for the adjustment of cable force in the construction of cable-stayed bridges is proposed in this paper,and how to define the function of satisfactory and content is discussed.

Based on the existing algorithm and through ascertaining the influence matrix of the tensile force in the construction of oblique pulling rope,the optimized stayed-buckle cable force is calculated at each stage of archrib hoisting phase of a model bridge during construction and the designed requirement is fulfilled through empty steel tube in falling state.

Non-bracket and Cable erection is the main erecting arch ribs method of a long span concrete-filled steel-tube(CFST) arch bridge recently,but it requires to adjust the cable force over and over again,which increases the degree of construction difficulty and arch axis linear control trouble,delays the project limit time.

Research purposes: By summing up the advantages and disadvantages of using the torque balance method and the finite element "zero displacement method" to determine the cable force,the optimal calculation method is used for the Luobuxi Bridge to guarantee the linear accuracy in arch rib segment of the bridge and construction safety.

Taking Da-ning River Bridge in construction as the engineering background,the optimization analysis of cable forces and segmental cambers has been carried out during the process of arch rib segmental installment.