ABSTRACT
Severe partial volume loss due to corrosion often occurs at the girder end and the lower portion of the end stiffener in steel I-section main girder of Japan. It might be expected that residual stress re-distribution and deformation behavior of H-rolled beam end occur under partial volume loss process due to corrosion. In this study, H-rolled beam specimens with end stiffeners were fabricated, and partial cross-section loss was introduced to bottom of an end stiffener, in order to measure deformation and residual stress under partial cross-section loss process. As results of the measurement, maximum variation of the out-of-plane displacement was 0.04 times of the plate thickness. Maximum variation of the residual stress from tension to compression was 0.3 times of yield stress. Consequently, it was revealed that changes of residual stress are generally dominated by not only release of residual stress but also deformation caused by it.
