Research Article
Experimental Investigation of Progressive Collapse of Prestressed Concrete Frames after the Loss of Middle Column
| | Specimen ID | The yield load of frame beams Py (kN) | The first peak load PP (kN) | Load at the beginning of catenary action Pt (kN) | Vertical displacement at Py (mm) | Vertical displacement at PP (mm) | Vertical displacement at Pt (mm) |
| | S1 | 33.4 | 40.1 | 30.1 | 25.0 | 61.7 | 142.0 | | S2 | 43.6 | 57.4 | 41.1 | 21.1 | 104.7 | 232.2 | | S3 | 36.4 | 52.1 | 45.3 | 25.4 | 127.0 | 212.7 | | S4 | 22.3 | N/A | N/A | 32.4 | N/A | N/A | | S5 | 24.2 | N/A | N/A | 29.7 | N/A | N/A |
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N/A represents the unavailability of data.
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