Calculation of Tension in Cables for Construction of Arch Bridge Using Perturbation Method

Abstract

Abstract The cantilever construction method with non-framework cable hoisting erection for arch bridge is gaining popularity in recent years. The final stresses and deformations in a finished arch bridge are strongly dependent on the sequence of events during the construction and the erection procedure being used. Therefore, calculation of cable tension is an important step in any analysis of the performance of the bridge at the actual construction sequence. In this paper a method for calculation of tension in cables for construction of arch bridge using perturbation is presented, and it is applied in the construction of Daninghe Bridge to ensure that the arch rib is constructed to line and level. Interestingly, the proposed method is more accurate and shows faster convergence than the common cyclic method.