Research Article
Experimental Study on Two-Step Concrete Corbels with Several Interface Conditions
Table 2
Observed cracking and ultimate loads of the tested specimens.
| | Specimen ID | Cracking load (kN) | Yielding load (kN) | Ultimate load (kN) | | | | | Mode of failure | | Flexural crack (Pcr1) | Diagonal crack (Pcr2) | | |
| | M1 | 250 | 125 | 400 | — | 437 | 0.57 | 0.29 | 0.92 | 1 | CCS | | M2 | 200 | 75 | 325 | – | 375 | 0.53 | 0.20 | 0.87 | 0.86 | CCS | | M3 | 300 | 100 | 370 | NY | 400 | 0.75 | 0.25 | 0.85 | 0.92 | CCS | | M4 | 200 | 100 | 365 | NY | 375 | 0.53 | 0.27 | 0.97 | 0.86 | CCS | | M5 | 75 | — | NY | NY | 100PR | 0.75 | — | — | 0.23PR | Premature breakout | | M6 | 75 | — | NY | NY | 100PR | 0.75 | — | — | 0.23PR | Premature breakout |
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Note. NY, steel not yielded; Py,1, load at main steel; Py,2, load at transverse steel; CCS, crushing of compression strut (shear failure); breakout failure in tension (anchorage failure); PR, premature failure.
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