Research on Design and Reinforcement Optimization of Inverted T-shaped Bent Cap Bracket
The longitudinal force of the mid span section of the large-span inverted T-shaped bent cap belongs to the B-zone structure,and the transverse force belongs to the D-zone structure.The force on the bent cap bracket is a coupling effect of these two types.To study the reinforcement scheme of the structure under coupling action,the solid finite element method is firstly used to analyze the stress situation of the structure.After determining the distribution of principal stress and equivalent stress,the standard method is used for reinforcement design.Then,a tension and compression rod model is constructed based on the finite element simulation results,and the reinforcement scheme of the cover beam bracket is calculated through re-evaluation.The results indicate that using the standard requirements for reinforcement has a certain bearing capacity surplus and can ensure structural safety.
bridge engineeringbent capbracketreinforcement schemeoptimization study
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