%0 Journal Article
%T Flexural Behavior of Reinforced Concrete Beams Subjected to Corrosion
%A Hakan YALCINER
%J -
%D 2018
%X New methods and experimental results are needed to more accurately evaluate the seismic performance of reinforced concrete structures exposed to corrosion. Corrosion causes to decrease in the cross-sectional area of the corroded reinforcement bars in the concrete, which also causes significant problems such as loss of bond. Loss of adherence can lead to slippage in reinforcement bars which can cause additional lateral displacements. However, since there is not enough experimental data on full-scale corroded reinforced concrete members in the current field literature; the effect of corrosion continues to be taken only as a decrease in the diameter of reinforcement bar in building performance evaluations. In this study, it was aimed to provide data for the available literature for full scaled reinforced concrete beams that were subjected to flexural tests at different ratios of corrosion In this study, experimental load-displacement relations of full-scale reinforced concrete beams subjected to bending tests at different ratios are discussed in terms of parameters such as increased corrosion rate, reduction in reinforcement, primary cracks occurring during accelerated corrosion, damage to reinforcements and adherence losses caused by the reduction of radial frictional forces. Five reinforced concrete beams were corroded by using the accelerated corrosion method. The actual corrosion ratios in reinforced concrete beams were obtained by crushing the reinforced concrete beams and extracting the reinforcement bars after flexural tests. As a result of the experimental study, it was found that corrosion ratio at 3% increased the ductility of structural members but decreases the ultimate load-carrying and ductility as the corrosion rate was increased. The difference in the bending behavior of two different reinforced concrete beams with the same corrosion rate was determined by different corrosion rates in transverse reinforcement bars. Experimental test results showed that instead of accepting the same corrosion rate in reinforced concrete structures exposed to corrosion, corrosion mapping methods have to be developed to evaluate existing structures more accurately
%K Betonarme kiri£¿leri
%K Korozyon
%K Y¨¹k-deplasman
%U http://dergipark.org.tr/erzifbed/issue/36425/359173