A through prestressed concrete tied arch carried out special construction to replace the suspender due to numerous diseases such as cracks in the arch rib,scratches on the sling,and corrosion of the anchorage.This paper mainly conducts a detailed study on the replacement of hangers in a tied arch bridge based on the example of a hanger replacement project,mainly discusses the design principles,construction process and monitoring content of the replacement of hangers;and uses the finite element analysis software MIDAS to conduct modeling and analysis to simulate the cable force and deformation when the temporary sling fails after the suspension is cut under closed traffic conditions,and checks the safety of the replacement construction of the suspension.Finally,according to the actual construction process on site,the specific effects of project implementation are described and several suggestions are put forward.
维普
万方数据