Site-specific ground motion simulation and seismic response analysis for microzonation of Nanded City, India

Autor: N. Subhadra, Simanchal Padhy, Priyaranjan Prasad, T. Seshunarayana
Rok vydání: 2015
Předmět:
Zdroj: Natural Hazards. 78:915-938
ISSN: 1573-0840
0921-030X
Popis: We study strong ground motion characteristics and ground response analysis of different sites in Nanded City, India. Synthetic strong ground motion records are obtained for two scenario earthquakes of magnitude M 5.2 and M 6.8 in southern Peninsular India using the finite fault model. Shear-wave velocity averaged over top 30 m of the soil is obtained from multichannel analysis of surface wave survey at 60 sites at depths of 20–50 m below the ground surface. The sites in different parts of the city are characterized by peak ground acceleration (PGA) at the surface and bedrock level, 5 % damped response spectra at the ground surface and the amplification factor defined as the ratio of ground motion at the surface to that at the bedrock. The area east to the lineament is characterized by low V S30 values (
Databáze: OpenAIRE