Tensile Anchor Plate Localized Stress Analysis Of Concrete Cable-stayed Bridge

Tensile anchor plate is generally used for anchoring steel girder and thecable anchorage structure, concrete girder by anchor before pulling plateanchor is not used, so it is necessary to make a stress analysis of anchoragestructure of this kind of strict, to verify its reliability.This paper take Wuhe Dinghuai Bridge in Huaihe as the projectbackground, established the finite element calculation model of the wholebridge, prestressed concrete cable-stayed bridge with single tower structurestress performance, a local study of cable-girder anchorage structure, the mainresearch contents include:Using finite element software Midas/Civil2010to establish the finiteelement model of Wuhe Dinghuai Bridge in Huaihe, analysis of the wholeprocess of each construction stage of the bridge, the bridge operation stage,analysis of the stress of structure.Analysis of cable force characteristics of anchorage structure--anchorplate model, and analyzes the stress characteristics of tensile anchor plate ofeach plate. Tensile anchor plate overall reasonable stress, no large range ofstress concentration, and the local stress concentration diffusion is rapid,uniform, reliable power transmission, good overall performance of mechanicalforce.Study the cable-girder anchorage zone of local concrete stresscharacteristics, tensile anchor plate near the concrete stress is larger, thepossible partial and tensile anchor plate from the phenomenon.