Table 3 Force and displacement at critical points of load–deflection curves.
Flexural action | CAA action | Second part of load increasing | 1st rebar fracture | 2st rebar fracture | Top rebar fracture | Catenary action | |||
|---|---|---|---|---|---|---|---|---|---|
Calculated | Experimental | Experimental | Calculated | experimental | |||||
Displacement (mm) | – | 16.9 | 67 | 151 | 276 | 297 | 340 | 320 | 340 |
Force (KN) | 19.4 (25.7)* | 23 | 38 | 33 | 53 | 51 | 53 | 59.9 | 53 |