SITE-SPECIFIC ANALYSES OF FRAMED BUILDINGS LOCATED AT DEEPER ALLUVIAL BASIN THROUGH 1D AND 2D GROUND RESPONSE ANALYSES

In the present study, 2D linear ground response analyses of typical alluvial strata located at Ahmedabad has been carried out for Mw 7.6 scenario earthquake and the comparison has been made with 1D equivalent linear ground response analyses results. The spectral amplifications from the present study are compared with field measured site amplifications reported for similar site. Using the surface ground motions from 2D and 1D ground response analyses, linear time history analyses are carried out for typical 15 and 6 storey reinforced concrete framed buildings and the base shears are compared with design base shear as per Indian Seismic code.