Research Article

Effect of Damping and Yielding on the Seismic Response of 3D Steel Buildings with PMRF

Table 7

Statistics of global damping reduction factors ( ) for displacements and the 2–5 range.

Earthquake
SC1 SC2 EQ1EQ22D1 2D2SD1SD2
N-S E-W N-S E-W N-S E-W N-S E-W N-S E-W N-S E-W N-S E-W N-S E-W

10.640.760.780.790.810.760.770.800.580.750.740.750.700.780.770.82
20.960.960.940.920.960.950.950.950.940.960.940.910.981.010.960.95
30.970.960.860.870.920.810.970.940.980.960.870.880.990.960.950.90
40.880.840.890.880.860.940.930.950.790.810.880.870.920.870.920.91
50.940.940.950.920.930.910.940.920.960.950.940.930.940.950.960.95
60.870.840.840.740.910.740.870.960.920.840.840.770.950.760.850.95
70.900.900.890.870.810.830.940.931.040.910.890.860.950.990.970.89
80.940.920.950.940.930.830.940.930.820.970.950.940.940.800.950.95
90.860.880.890.920.960.940.940.930.910.880.900.920.920.910.920.96
100.860.960.980.940.940.940.940.920.890.960.980.940.910.961.000.95
110.910.940.950.940.950.920.920.950.850.940.950.930.920.931.010.97
120.940.920.880.840.960.910.900.790.870.930.870.920.950.950.880.86
130.810.850.890.890.890.910.980.840.900.850.890.880.850.890.970.94
140.880.920.920.940.940.930.890.910.910.910.930.940.900.970.950.96
150.900.930.910.830.900.910.830.850.950.930.900.870.870.820.890.86
160.710.710.770.790.800.760.690.850.750.760.830.820.630.800.830.86
170.920.970.900.910.870.990.920.920.920.960.910.900.910.950.920.92
180.840.730.810.710.760.750.700.740.680.710.820.760.800.750.950.91
190.850.860.830.820.790.700.930.800.920.830.890.870.800.700.900.87
200.870.880.850.940.860.940.890.910.840.860.760.830.770.860.730.68

Mean0.870.880.880.870.890.870.890.890.870.880.880.870.880.880.910.90
COV0.090.090.070.080.070.100.090.070.120.090.070.070.110.100.080.08