Research on the Prestressed Strand Arrangement Design of Small and Medium Span Y-shaped Pier Continuous Rigid Frame Bridge
Prestressed strand arrangement design is the key work in the design of small and medium span Y-shaped pier continuous rigid frame bridge.The bridge piers with pier-beam consolidation is involved in the distribution of the internal force of the main beam,and the main beam,pier and foundation must be considered together in the prestressed strand arrangement design.The Dr.Bridge and Midas Civil software are used to assist the prestressed strand arrangement design,and the prestressed strand arrangement design is carried out according to the steps of estimating steel strands,arranging steel strands,and checking steel strands.The research shows that the full-length prestressed strand arrangement scheme can be adopted for the small and medium span Y-shaped pier continuous rigid frame bridge with cast-in-place support construction;combined with the variation law of the estimated number of steel strands,the steel strands are configured at the fulcrum beam end,the transition beam segment,and the mid-span section in turn;by controlling section through the fulcrum,each beam segment will be synthesized,which can effectively simplify the prestressed strand arrangement design.
small and medium spanY-shaped pier continuous rigid frame bridgeprestressed strand arrangement design
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