Description on Analysis of Dangerous Defects and Nondestructive Testing Method of Fusion Fillet Weld of Anchor Box for Cable Stayed Bridge

The dangerous defects which often appear in the fusion fillet welds of anchor box were initially determined by analysing the structure and stress of anchor box and based on its importance to the cable stayed bridge. The reliable and effective nondestructive testing(NDT) method was proposed based the features of the dangerous defects and in combination with the actual NDT results of weld of anchor box on site.