Research Article

Optimal Seismic Intensity Measure Selection for Isolated Bridges under Pulse-Like Ground Motions

Table 6

Demand models and efficiency comparison of IMs subjected to far-field ground motions.

Height (m)μxδx
PGAPGVPGDCADIaIvCAVPGAPGVPGDCADIaIvCAV

40.270.220.270.230.230.210.230.470.330.530.440.420.350.45
60.310.290.360.310.290.280.290.560.470.600.540.510.490.53
80.380.300.400.330.340.300.340.600.500.640.580.550.520.57
100.440.370.430.370.400.350.390.640.530.650.580.580.540.59
120.500.410.480.420.450.390.430.640.560.670.600.600.550.60
140.560.430.530.460.510.410.500.610.490.600.530.550.470.55
160.650.510.560.500.590.460.570.640.490.580.530.580.470.58
180.730.580.590.530.680.500.650.600.470.540.480.530.430.51
200.820.630.650.560.750.530.710.530.450.500.450.490.420.47

Note: bold values indicate more efficient IM.