The article deals with the main results of experimental studies of strength. crack resistance and informational content of the diagonal and normal sections of common damaged and brought to the critical state of the first group r. c. - beams reinforced with carbon fibre sheet in the lower tensioned zone and on the support area. https://www.roneverhart.com/Ryukyu-Kobujutsu-Buki-Jutsu-Vol-2-DVD-with-Kiyoshi-Yogi/