Stability Analysis Of Prestressed Concrete Continuous Rigid Frame Bridge With Tall Pier And Large Span

This paper chooses the PC continuous rigid-frame bridge with high-pier and large- span, and establishes the finite element model. The stability analysis of the bridge is carried out by the general finite element software software ANSYS10.0. The main research contents are as follows:1. Stability calculation and analysis in the construction stage and completed bridge stage for PC continuous rigid-frame bridge;2. The influence of pier type on stability;3. Nonlinear stability analysis;4. According to analysis results, the stability safety factor in the construction stage and completed stage is evaluated, the crucial stage preventing instability is pointed out, some references for design and construction of similar bridges are provided.