Bearing Capacity Analysis of Reinforcement for the Double Curvature Arched Bridge in Service

According to the disease status of a dilapidated double curvature arched bridge in Baotou city, the reinforcement scheme of Shotcrete Increasing the Section is proposed. The finite element model was established by Midas software. The simulation analysis results show that for the bridge span structure after reinforcement, the bearing capacity and stiffness is increased significantly, the displacement and stress is reduced effectively, the overall mechanical performance is improved, the reinforcement scheme is practicable.