2021 Volume 77 Issue 4 Pages 210-229
The effect of a cable rupture in a PC box girder with complicated structural details of anchorage and cable arrangement on the load bearing performance is not necessarily made clear yet. In this study, the bending test of half-scaled PC box girder specimens were conducted to simulate the load bearing performance subjected to cable ruptures near anchorage zone. Their behaviors were also investigated using three-dimensional nonlinear FEM analysis. It was clarified that the failure modes of the PC box girder with a cable rupture at the web of one end and of that with cable ruptures at the webs of both ends were different from each other, and from that of the intact girder. Therefore, it is necessary to evaluate the load bearing performance of a PC box girder using the method that can simulate the three-dimensional behavior, due to the accuracy limit of the current one-dimensional beam model applied in design and evaluation practice.
