Research Article
Seismic Fragility of Chinese Light-Gauge Steel Keel Gypsum Board Partition Walls
Table 4
Specimen damage state and interstory drift ratio (unit: %).
| Damage state | Damage characteristics | A1 | A2 | A3 | B1 | B2 | B3 | C1 | C2 | C3 | D1 | D2 | D3 | E1 | E2 | E3 |
| | Cracks starting in the gypsum boards | 0.57 | 0.29 | 0.22 | 0.65 | 0.44 | 0.20 | 0.31 | 0.44 | 0.26 | 0.35 | 0.25 | 0.23 | 0.29 | 0.25 | 0.29 | Slipping of the partition wall-structure connection | 0.25 | 0.32 | 0.20 | 0.25 | 0.61 | 0.25 | 0.47 | 0.35 | 0.50 | 0.39 | 0.41 | 0.35 | — | — | — | Loosening of the self-tapping screws around the gypsum board | — | — | — | — | — | — | — | — | 0.79 | 0.53 | — | — | 0.57 | 0.39 | 0.44 | Minimum drift level triggering | 0.25 | 0.29 | 0.20 | 0.25 | 0.44 | 0.20 | 0.31 | 0.35 | 0.26 | 0.35 | 0.25 | 0.23 | 0.29 | 0.25 | 0.29 |
| | Cracks in the middle of the gypsum boards of the transverse wall | 0.74 | 0.96 | 0.83 | 1.02 | 1.09 | 0.90 | 0.90 | 0.84 | 0.79 | 1.72 | 1.26 | 1.36 | — | — | — | Cracks between the gypsum boards of the longitudinal wall | — | — | — | 1.02 | 1.86 | 1.59 | 1.72 | 1.59 | 1.36 | 0.90 | 1.02 | 1.02 | 1.36 | 0.87 | 1.17 | Crushing of the gypsum boards at the wall corner | — | — | — | — | — | — | — | — | — | — | — | — | 0.84 | 0.74 | 1.09 | Failure of the self-tapping screws around the gypsum board or loosening of the self-tapping screws in the middle of the gypsum boards | — | — | — | — | — | — | — | — | — | — | 1.72 | — | 1.26 | 1.59 | 1.72 | Minimum drift level triggering | 0.74 | 0.96 | 0.83 | 1.02 | 1.09 | 0.90 | 0.90 | 0.84 | 0.79 | 0.90 | 1.02 | 1.02 | 0.84 | 0.74 | 1.09 |
| | Failure of the partition wall-structure connection | 0.90 | 1.72 | 0.90 | 1.26 | 2.34 | 0.84 | 2.01 | 1.26 | 1.09 | 0.90 | 1.47 | 1.17 | — | — | — | Separation of the gypsum board from the steel stud | — | — | — | — | — | — | — | — | — | — | — | — | 0.90 | 1.12 | 1.47 | Local bending and plastic hinge occurring in the steel stud | — | — | — | — | — | — | — | — | — | — | — | — | 1.36 | 1.26 | 1.09 | Minimum drift level triggering | 0.90 | 1.72 | 0.90 | 1.26 | 2.34 | 0.84 | 2.01 | 1.26 | 1.09 | 0.90 | 1.47 | 1.17 | 0.90 | 1.12 | 1.09 |
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Note: data in the table are interstory drift ratios (unit: %).
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