Research Article

Effect of Soil Flexibility on Seismic Force Evaluation of RC Framed Buildings with Shear Wall: A Comparative Study of IS 1893 and EUROCODE8

Table 5

Lateral natural period of building.

StoreysBase ConditionLateral natural period of building (Sec)
Bare frameSW1SW2
ModeModeMode
134134134

4Fixed0.850.710.260.180.160.060.350.210.08
Sb1.000.750.290.190.170.060.360.210.08
Sc1.000.750.290.220.170.060.380.220.09
Sd1.000.750.290.290.170.080.420.260.09
Se1.010.760.290.410.190.150.520.320.15

6Fixed1.191.000.370.320.230.080.590.370.14
Sb1.371.050.410.340.240.080.600.370.14
Sc1.371.050.410.370.240.080.620.380.15
Sd1.371.050.410.470.250.090.680.420.16
Se1.391.050.410.640.260.150.800.510.17

8Fixed1.501.250.480.450.270.100.810.520.20
Sb1.721.320.530.480.270.110.830.530.20
Sc1.721.320.530.530.280.110.860.540.21
Sd1.731.320.530.670.280.120.940.600.22
Se1.751.330.540.900.290.161.110.710.24

12Fixed2.191.770.680.840.400.181.360.900.35
Sb2.511.900.770.870.410.191.380.910.36
Sc2.521.900.770.950.410.201.420.930.37
Sd2.541.900.771.150.410.221.530.990.38
Se2.591.910.771.490.430.241.781.130.41

16Fixed3.002.280.891.280.500.271.981.310.52
Sb3.512.501.011.340.520.282.021.320.53
Sc3.522.501.011.460.520.302.071.350.54
Sd3.552.501.021.760.530.332.251.440.56
Se3.662.511.022.250.540.352.641.630.60