The research on cable-stayed reinforcement technology is based on the rescue and reinforcement project of the trestle in the Dafeng Port area of Yancheng Port,the pile foundation of the original trestle was fractured after being collided by ships,resulting in the instability of the upper beam,varying degrees of cracking and beam end settlement,which seriously affects the safety of the equipment on the beam.The project is located in an open sea area without cover,and the beam of the pier has no supporting components except for the rear approach bridge.A cable-stayed reinforcement technology was used to reinforce the beam of the trestle without dismantling the original beam and hollow slab,thereby quickly relieving the existing dangerous state and providing a construction platform for the later repair of pile foundations and beams.The application of this technology helps to reduce construction costs,accelerate construction progress,and improve construction safety factor,providing reference for similar engineering construction.
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