Abstract
This study aimed to investigate the effect of transverse cracks on corrosion-induced cracking in reinforced concrete (RC) structures. A three-dimensional diffusion-mechanical model of RC with transverse cracks was developed, the effects of the transverse crack deflection angle and width on the diffusion process were considered, and the extended finite element method (XFEM) was used to simulate corrosion-induced crack paths. An accelerated corrosion test was designed, and the experimental results were compared with the numerical calculation results to verify the accuracy of the crack patterns. Furthermore, the effects of the transverse crack deflection angle, distance to transverse crack, and steel bar diameter on the corrosion-induced crack patterns were investigated. The results showed that the deflection angle of the transverse crack not only influenced the width and length of the corrosion-induced cracks but also determined the location of the corrosion-induced crack. The rebar diameter had a minor effect on the longitudinal length of the crack but was sensitive to the variation in the circumferential angle of the cracks. In addition, increasing the distance to the transverse crack simultaneously decreased the longitudinal length and extended the initial time of the crack.
Published Version
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