Flexural strengthening of reinforced concrete beams using external tendons

Strengthening of reinforced concrete (RC) beams is the important issue in the civil engineering practice. One of the techniques that can be applied in strengthening of such structures is prestressing using unbonded tendons. Despite the fact that many research studies have been done in the subject of external prestressing there are still some gaps in knowledge in this issue. These gaps concern especially the effect of preloading, precracking and...