Research Article
Optimal Seismic Intensity Measure Selection for Isolated Bridges under Pulse-Like Ground Motions
Table 5
Demand models and practicality comparison of IMs subjected to far-field ground motions.
| Height (m) | μx | δx | PGA | PGV | PGD | CAD | Ia | Iv | CAV | PGA | PGV | PGD | CAD | Ia | Iv | CAV |
| 4 | 0.35 | 0.37 | 0.25 | 0.34 | 0.23 | 0.19 | 0.45 | 0.79 | 0.82 | 0.50 | 0.71 | 0.47 | 0.41 | 0.91 | 6 | 0.41 | 0.42 | 0.20 | 0.36 | 0.27 | 0.21 | 0.54 | 0.70 | 0.77 | 0.40 | 0.62 | 0.46 | 0.37 | 0.90 | 8 | 0.45 | 0.52 | 0.26 | 0.45 | 0.30 | 0.26 | 0.63 | 0.73 | 0.82 | 0.42 | 0.66 | 0.48 | 0.39 | 0.94 | 10 | 0.43 | 0.53 | 0.30 | 0.49 | 0.30 | 0.27 | 0.64 | 0.70 | 0.81 | 0.44 | 0.67 | 0.47 | 0.40 | 0.94 | 12 | 0.54 | 0.64 | 0.37 | 0.58 | 0.37 | 0.33 | 0.79 | 0.76 | 0.83 | 0.46 | 0.72 | 0.50 | 0.42 | 1.00 | 14 | 0.66 | 0.79 | 0.47 | 0.70 | 0.44 | 0.40 | 0.92 | 0.76 | 0.86 | 0.51 | 0.76 | 0.50 | 0.44 | 1.03 | 16 | 0.68 | 0.85 | 0.55 | 0.79 | 0.47 | 0.44 | 0.99 | 0.75 | 0.90 | 0.56 | 0.79 | 0.51 | 0.46 | 1.03 | 18 | 0.70 | 0.91 | 0.64 | 0.90 | 0.48 | 0.50 | 1.05 | 0.75 | 0.86 | 0.55 | 0.79 | 0.50 | 0.44 | 1.05 | 20 | 0.75 | 1.02 | 0.71 | 1.02 | 0.53 | 0.56 | 1.17 | 0.67 | 0.74 | 0.48 | 0.68 | 0.44 | 0.38 | 0.93 |
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Note: bold values indicate more practical IM.
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