EXPERIMENTAL STUDY ON ANCHOR-PLATE ANCHORAGE FOR CABLE-STAYED BRIDGES WITH STEEL BOX GIRDER

Cable-girder anchorage is complex to construct and bears heavy load in cable-stayed bridge. The characteristics of anchor-plate anchorage structure are investigated, and its applications to long span cable-stayed bridge are introduced. The full-scale model test of the anchorage structure in Zhanjiang Bay Bridge was carried out, and the stress on test points of the anchorage system was obtained under static load. By combining FEM analysis with the result obtained from model test, stress distribution and mechanic behavior of anchorage system are analyzed, and the reliability of the design and manufacture techniques of anchorage system is proved. Based on the Von.Mises strength criterion, the bearing capacity of the anchorage system is assessed.