Issue 46

H. Zhu et alii, Frattura ed Integrità Strutturale, 46 (2018) 361-370; DOI: 10.3221/IGF-ESIS.46.33 368 Figure 5 : The load-deflection curve of different beams No. of test specimen RC A B C D E F Ultimate load (KN) 89 110 127 140 106 115 152 Improvem ent amplitude (%) - 23.6 42.7 57.3 19.1 29.21 70.79 Failure mode - 1 2 2 3 2 2 Table 5 : The results of different beams. Note: 1. Crushing failure of concrete beams; 2. Debonding failure of concrete and binding materials; 3: debonding failure of the protective layer of concret.e Figure 6 : The comparison results of strains of different beams.