Site Amplification Factors and Acceleration Response Spectra for Shallow Bedrock Sites–Application to Southern India

Bajaj, K and Anbazhagan, P (2020) Site Amplification Factors and Acceleration Response Spectra for Shallow Bedrock Sites–Application to Southern India. In: Journal of Earthquake Engineering .

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Abstract

Site amplification coefficients and acceleration design response spectra (ADRS) for the shallow sites in SI are derived based on non-linear site response analysis at 125 locations. Input motions are selected by considering the seismic hazard map for 475 years as return period and inputted at depth where VS ≥ 1,500 m/s. The new site factors, i.e. (Formula presented.), (Formula presented.), and (Formula presented.), are proposed for Southern India (SI) by classifying the sites seismically considering National Earthquake Hazards Reduction Program (NEHRP). Using the calculated site factor, a new ADRS is developed for SI, which depends on peak ground acceleration and seismic site class. The compatibility of ADRS is further evaluated with NEHRP and BIS:1893. © 2020, © 2020 Taylor & Francis Group, LLC.

Item Type:	Journal Article
Publication:	Journal of Earthquake Engineering
Publisher:	Taylor and Francis Ltd.
Additional Information:	The copyright for this article belongs to Taylor and Francis Ltd.
Keywords:	Hazards; Seismic response, Acceleration response; Design response spectrum; Earthquake hazard; Peak ground acceleration; Return periods; Seismic hazard maps; Site amplification; Site response analysis, Earthquake effects
Department/Centre:	Division of Mechanical Sciences > Civil Engineering
Date Deposited:	03 Nov 2021 11:25
Last Modified:	06 Oct 2022 05:38
URI:	https://eprints.iisc.ac.in/id/eprint/65630

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