Research on Mechanical Characteristics of Long-span Stiff Skeleton Arch Bridge Based on Different Construction Methods

Abstract

In the construction process of long-span rigid skeleton arch bridge, there are many structural system transformations, complex structures, control and influencing factors. In order to rationally optimize the construction method, taking Beipanjiang Bridge as an example, the finite element model of the construction stage is established, and the stress of each component of the main arch ring of the rigid skeleton arch bridge under different construction modes is analyzed. The results show that the main arch ring meets the stress requirements under different construction methods. Compared with the construction mode I, the construction mode II reduces three secondary buckles, which makes the construction more convenient and fast.