| Load(kN) | The top lateral displacement of the column (mm) | YQKZ2 |
|---|---|---|
| 70.0 | +3.3 | A horizontal crack measuring 0.02 mm in width appeared on wing wall A and was 560.0 mm from the top surface of the bottom beam. |
| 147.6 | +15.0 | A slanted crack appeared on the concrete column at 80.0 and 230.0 mm from the underside of the top beam. |
| +and-18.0 | Slanted cracks appeared on both wing walls A and B. | |
| 220.4 | -25.0 | The local concrete was crushed slightly at the bottom end of the column. |
| 233.1 | -31.5 | Slanted crossing cracks continuously increased at the bottom end of the column. The widest crack was measured to be 3.0 mm. Meanwhile, a vertical crack appeared on the column, and a large area of the concrete in wing wall A was crushed. |