Research Article

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

Table 8

Demand models and sufficiency comparison using values of IMs subjected to far-field ground motions.

Height (m)μxδx
PGAPGVPGDCADIaIvCAVPGAPGVPGDCADIaIvCAV

M40.180.470.410.790.770.730.820.140.280.240.850.500.970.68
60.050.870.150.920.630.580.980.030.710.100.470.260.870.35
80.020.630.180.650.430.260.880.060.890.160.620.350.950.45
100.010.910.230.570.260.300.700.050.790.170.640.300.970.41
120.010.990.180.760.250.340.600.060.670.150.600.300.950.39
140.010.870.180.820.170.300.420.010.260.050.240.080.430.13
160.0020.410.080.620.050.920.120.030.430.130.430.140.700.20
180.0020.160.040.280.020.500.060.010.130.050.170.050.240.09
200.0020.160.030.250.020.500.050.050.610.280.750.280.990.45

R40.520.970.470.290.590.850.190.110.180.040.030.100.130.02
60.630.950.100.180.500.650.140.140.340.020.030.110.160.02
80.690.520.160.310.640.820.180.130.330.020.030.100.160.02
100.470.760.160.290.440.910.140.170.460.040.050.150.270.04
120.450.770.130.220.430.950.100.310.600.080.090.270.410.08
140.370.650.110.180.330.930.070.250.550.090.100.230.390.08
160.230.920.090.100.210.800.050.100.260.030.030.090.160.03
180.240.830.180.170.260.880.110.250.470.160.180.250.440.14
200.200.780.130.120.220.840.100.190.380.070.080.160.300.06

Note: bold values indicate more sufficient IM.